240sx tube chassis Time for Tubs and tube front end. The chassis is only partially finished. A brand new roll cage was also tig welded and installed to CXRacing Intercooler Piping Pipe Tube Kit For 89-99 Nissan 240SX S13 Chassis with S13 SR20DET Swap, Front Mount Intercooler Application - Chassis: 89-99 Nissan 240SX S13 We continue with the rebuild by making the "tube front". Chat. This is not a guide or how to, but instead a basic run through of whats involved and wh This required time upfront, but the matched curvature makes creating the sheet metal between the tube chassis and the windshield’s sheet metal much easier and cleaner Nissan 240SX Nissan 350Z Nissan 370Z RWD SR20DET Mazda Miata Hyundai Wheels Parts Rewards Chassis Bracing; Cold Air Intakes; Connecting Pipes; Coolant Reservoirs; The engine is still good. Relatively rust free 1989 240sx tube chassis - $25,000. That’s an Apr 14, 2009 · s13 tube chassis build thread Chat. A community of S-Chassis enthusiasts. I started with a 1973 240z for the body, LS1 & T56 out of a 2002 Camaro, 240sx (S14) front and rear suspension and will be building a tube chassis to tie it all together. ONLY for ADVANCED technical discussion about the 240sx! Post Reply Iv searched but I just cant seem to find anything about how to chop CXRacing Front Mount Intercooler + Piping + Air Intake Pipe Tube Kit For 89-99 Nissan 240SX S13 S14 with 1JZ-GTE-VVTI Stock Turbo Swap Application: Chassis: 89-99 Nissan 240SX Want to see more of this project? Check out the playlist here: https://www. Voorzien van precie @crickfilippi ⬇️🛒 𝕊ℍ𝕆ℙ ℕ𝕆𝕎 🛒⬇️WWW. Today we talk about the "will they won't the. Find ideas for your next project. 120″ wall mild steel tubing or 1-1/2″, . It arrived with Chat General Discussion About The Nissan 240SX and Nissan Z Cars Thread Tools: Display Modes: 10-25-2019, 11:47 AM #1: SaveTheZenkis . 99 CNC laser cut & notched from 2” x . A community of S-Chassis enthusiasts Members Since it already has a bent subframe it is time for a tube chassis front to compensate. , 2 Chambers Street, Binghamton, N. By Guest Gr8White December 19, 2008 in McIntosh MC-240 Tube for sale. and fitament issues. So my airflow was improved for getting heat in the bay out of the I could not wait for this drift my project car at this event! I did my best to get the project 240sx S13 ready for the drift event and it payed off well! The CXRacing Front Mount Intercooler + Piping Pipe Tube Kit For 89-99 Nissan 240SX S13 Chassis with S13 SR20DET Swap, Front Mount Intercooler Application It Also Works with S14 Chassis 1989 240sx tube chassis . Jan 2nd 2025 299 1 Show phone number $25,000. Both or Singles. My original frame on C5 Tech - Custom Tube Chassis? - I have had a few different cars ranging from an early eagle talon awd turbo 4 cyl to a 96 240sx with a turbo lq4 swap. It replaced the outgoing 200SX (S12) model. Raced in Nasport, SCCA, ICSCC, GT3, super production and vintage eligible. Explorar. **Car is a S14 by our customer Dallas Brown** https://thehumbleengineering. 120”W DOM tubing Includes full set of blueprints and step by step assembly If you follow me on IG you already saw this coming :) We couldn't be more excited for this! This s14 has to be one of the cleanest complete schassis ive seen CXRacing Intercooler Pipe Tube Kit ForNissan 240SX S13 S14 S15 Chassis with RB20 RB25 Engine Application: Chassis: Nissan S13 S14 S15 Motor: RB20 RB25 Engine Products Being 🚗240SX FINDER: https://collectorcarfeed. Here is Welcome to the chassis build of project 240sx. Rocket Bunny 2JZ 180sx S15 Silvia S13. Page 4- Tube Front ends! Post up different set-ups. The 8. That should finish up the The Nissan 240SX is a sports compact car that was introduced to the North American market by Nissan in 1989 for the 1990 model year. Sorry for the delay I was just in Vegas filming a tv show and am a bit behind. Iniciar sesión. SKU: 1610 Regular price $3,599. Car and trailer for sale as a combo for 25,000 Trailer is a 2018 28ft 1991 Nissan 240 SX - Trailers - About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Brown Davis roll cages are manufactured from 350 MPA CD Mild Steel Tube. It's being used New uploads Monday,Wednesday,and Saturdays! For this video, I dug back a couple of years and looked through all of my BLUEJZ footage from the build, and deci Up for auction is my 1992 Nissan 240sx race car rolling chassis with title that has a six point cage. This amplifier was also serviced in 2024 by North This video i ordered new wire for the nissan 240sx S-Chassis it is call labwork 14 circuit universal wiring harness street rod XL Wires follow me on IG @L About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright http://spirta. jefferz Subscribe for almost daily content, its FREE :)Help support me and become a Patreon, would mean the world. com/playlist?list=PLPEVX0fF6FJa5ycs2UmFPMqCbTSEnKmPT Our 240SX wiring harnesses protect your Nissan’s electric system with premium aftermarket parts. 5 SilEighty Sil80 SilFourty Sil40 McIntosh MC-240 Tube Amplifier (second one) Tube for sale. A community of S-Chassis enthusiasts Oil pickup tube gasket Engine Tech. T In this video, we go into detail on everything that is related towards a Z33 (350z, G35) axle conversion on a S- Chassis (S13, S14, S15). RIO RANCHO, NM, United States No trades accepted I started with a 1973 240z for the body, LS1 & T56 out of a 2002 Camaro, 240sx (S14) front and rear suspension and will be building a tube chassis to tie it all together. The following photos document the complete gutting and restoration of project 240sx to include roll cage installatio0n as well as ~ Tube Front ~ *Many racing "teams" that continually setup & adjust the chassis per event leave the sheet metal in front of the shock tower open for ease of access to the front Each individual chapter uploaded weekly demonstrating the techniques and practices of fabricating a tube chassis front end on a Nissan 240SX S13 Chassis. SKU. Available in full kits or individual components. mp4 A forum community dedicated to Nissan 240SX owners and enthusiasts. Sentra; Altima; Maxima; CHASSIS BUILD Before construction begins on a race car like this, we study the In this episode, I show you how to install gauges in your 240sx! Follow me at:Instagram: https://www. Jan 2nd 2025 68 0 Show phone number $25,000. Tube Front Kit for the Nissan 240sx 89-240sx. RIO RANCHO, NM, United States No trades accepted 1989 240sx tube chassis - $25,000. Our kit is designed to reinforce your stock tension rods at a fraction of the price of other types out there. 45K subscribers in the 240sx community. 4L inline 4 and 4 speed automatic transmission!Merch & Blog: https://www. http://www. Comprar. The cage was made with 1 3/4 diameter steel tubing that has NASCAR style door bars The Fabricator Series Segments (TFSS): Chapter pulled from "How To Build A Tube Chassis Front End" which demonstrates complete tube chassis front end fabrica McIntosh Model MC-240 (Serial ilP001 and Mc INTOSH MODEL MC-240 McIntosh Laboratory, Inc. Prefit frame rail tube (E) in place and tack weld once fitted properly. com/240sxWe start today looking at some beautiful S13s on Bring A Trailer and Cars & Bids, then follow up with the usual HTP MIG 240 HTP 380 Plasma Bridgeport Milling Machine South Bend Lathe Etc. 22 posts • Page 1 of 1. com/carsToday we're looking at every s13 and s14 Nissan 240SX listing on Ebay, Bring A Trailer, and Cars & Alaria Tech weld-in trans tunnel for S14/ S15 chassis. com/IG @6mt6IG @s13_spirta The Nissan 240SX is a sports car that was introduced in 1988, and has since become extremely popular among enthusiasts and widely seen as the perfect drift c Ontdek de BECO MAXXIM 240 tandemasser: een robuust chassis met spelingvrije en geluidsarme constructie, zelfs na jaren intensief gebruik. Will it fit and work? Follow along as we figure out how to swap a Honda K Another one of our great DIY’ers kit for a upgrade you won’t regret. Open menu Open navigation Go to Reddit Home. The rest of the world missed out on direct S15 sales. Our Nissan 240SX Removable Radiator Support Kit is designed to make engine 240SX S14(95-98) S15 Silvia (99-02) 240sx (S13) 89-94; Sedans/Coupes. Etc. net Forums Chat General Discussion About The Nissan 240SX and Nissan Z Cars Page 1 of 6: 1: 2: 3 > Last » With removable bumper support. $198. bigcartel. The options may be chosen on the product page Today I go over the process of wiring a sr20 Alternator and z32 MAF From nothing. ADMIN MOD CAD Model of S13 Hatch? I am currently beginning the process of designing my tube front end/V mount The S-Chassis continued to evolve past the 240SX in Japan, Australia, and New Zealand in the form of the S15. This car has never been in any high speed collisions. c Please help support me by following me on Instagram, I would really appreciate it: @cooperc240DUE TO THE OVERWHELMING RESPONSE, I HAVE COPY AND PASTED THE PA This required time upfront, but the matched curvature makes creating the sheet metal between the tube chassis and the windshield’s sheet metal much easier and cleaner Page 4- Tube Front ends! Post up different set-ups. 240SX Land Speed Racer; In this video, we go into detail on everything that is related towards a Z33 (350z, G35) axle conversion on a S- Chassis (S13, S14, S15). net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Chat: s13 tube chassis build thread Jun 4, 2017 · ~ Tube Front ~ *Many racing "teams" that continually setup & adjust the chassis per event leave the sheet metal in front of the shock tower open for ease of access to the front Jun 7, 2012 · Tube Front ends! Post up different set-ups. Listing Number: 184681801. com/meetmario_Facebook: Cameron Cocalis’ tube chassis Toyota GT86 is a drift car, which explains the presence of the wide-angle FDF Fab front suspension. IN ADDITION to the games and Fac Purpose Built Drift Car @crickfilippi debuts his custom fabricated Nissan 240SX meant to be the perfect bespoke drift machine. Here is the car the day I got it. Come join the discussion about performance, builds, engine swaps, turbos, modifications, classifieds, 1989 240sx tube chassis - $25,000. com/grimmaro/https://www. and fitament issues 240Z strut tube I. The SkyFi Testing Process for Tube Amplifiers: We start with a visual inspection of all internal This required time upfront, but the matched curvature makes creating the sheet metal between the tube chassis and the windshield’s sheet metal much easier and cleaner looking. Just some subframe mods for engine mounts and it fit pretty good. Build update: 1960 Corvair, custom tube chassis, LS swap with full 240sx drift s13 chassis tubed out front end. D. r/240sx. Medieval Style A community of S-Chassis enthusiasts Members Online • matthew_V12. 120″ CXRacing Intercooler Piping Pipe Tube Kit For 89-99 Nissan 240SX S13 Chassis with S13 SR20DET Swap, Front Mount Intercooler Application - Chassis: 89-99 Nissan 240SX S13 S14 Chassis - Motor: S13 SR20DET PRODUCT(S): - The remnants of a Datsun 240Z, a late-model engine swap, a whole lot of tubing, and a slathering of carbon fibre thrown in for good measure. com or call 860-799-6579. Trimming may be required for this process. Report this listing. ZackPradel. 17(sun) SR DRIFT MEETINGエントリー車両のドリフト走行の様子#SrDriftMeeting #Drift #Silvia #S13 #S14 #S15 #180SX #240SX #S_CHASSIS Go to 240sx r/240sx. Approximately Explore the world of custom tube chassis for modified cars. com/KalvinsGarageGet that fire Chassis Only - 56 lbs In Shipping Carton - 65 lbs. That was NOT the case on this one. CXRacing Front Mount Intercooler Pipe Tube Kit For 89-99 Nissan 240SX S13 S14 or S15 Chassis with S14 SR20DET Engine Swap Fits All 240SX Chassis with S14 SR20DET Swap (Does Not Fit S13 SR20DET Swap, But We Do Have Below is a video of the tube front installed and painted. Zilvia. com. Installing the Battle Aero v4 Chassis Mounted wing for the 1993 240sx Nissan S13 Silvia 180sx. I have driven some Building my 93 240sx to drift and autocross. The thread TMR Customs DIY Tube Chassis Kit Rated 5. One McIntosh MC-240 Stereo Tube Amplifier in Very Good/Near Excellent condition. Comment. DIYSubscribe for videos on my 240sx kouki Drift build/Vlogs. Recently underwent a complete restoration by North 50 likes, 3 comments - bellsandvaughn on November 21, 2024: "REPOST: @big_shanto doing big things. In stock. Using a Lincoln 185 precision TIG to get the job done right. 1989 240sx tube chassis . patreon. Only complication was the drivers side turbo Looks like the whole tube front is on another set of plates that bolt to the welded pieces and the same sort of deal with the chassis rails. Requires FIND YOURS: https://collectorcarfeed. 1989 Nissan 240sx tube chassis car, purpose built for street style cash days/no prep surfaces as Rio Rancho, NM $25,000 Posted 5 days ago. tjsperformance. Chat Zilvia. S13. For installation Facbeook car aggregator: https://collectorcarfeed. Now, unlike most Formula Drift Nissan 240SX Technical Section. been doing the research myself as me CXRacing Intercooler Piping Pipe Tube Kit For 89-99 Nissan 240SX S13 Chassis with S13 SR20DET Swap, with After Market Intake Manifold, Front Mount Intercooler Application It Also I have a bare S14 chassis in my shop with roof cut, subframes removed and all suspension/ fuel tank/ engine gone. Browse our Catalog of direct fit swap parts for your S13, S14, or S15 CXRacing Front Mount Intercooler Pipe Tube Kit For 89-99 Nissan 240SX S13 S14 or S15 Chassis with S14 SR20DET Engine Swap But it fits All 240SX Chassis, as long as it is a When restoring the 240, we often replace the chassis with a stainless version since they're usually rusted or show some pitting at 60 years old. We also wanted to t Brakes, Wheels, Suspension and Chassis ; 240Z strut tube I. 3. Ideal uses for these are 6 cylinder engine swaps upgrade, 240sx with aftermarket tube front end, or simply repairing a rusty or damaged chassis. Might get antsy and out the lambo supercharger kit on it too 😍😍 it’ll be a few years before I’d finish it, but I’m going We're at NV Auto trying to fit our Honda K24A2 K-Swap engine into our Nissan 240SX. Acción de Gracias. These are designed to replace the OEM tunnel to allow for more space for larger transmissions, plumbing and servicing. 00. 1989 240sx tube chassis - $25,000. Listing ID 96 240SX SE: Track Car | 90 Skyline GTR: Bucket List Car | 07 Legacy Spec B: The DD. IMPORTWORX. So, I decided to begin a drift cart based off the 200bx, and then thanks to Nekkit for the idea, it has become a pro drift car tube chassis style build. Right Side Only - $99. Listing ID About Press Copyright Contact us Creators Advertise Developers Terms Privacy Press Copyright Contact us Creators Advertise Developers Terms Privacy The basics you need to know if your considering to awd your schassis. Skip to main content. Build Details: Customer supplied OEM headlights, factory halogen projectors converted to 3" Bi-LED projectors while retaining OEM+ appearance. Join Date: Mar 2018. I have General discussion forum about the 240sx, and a great place to introduce yourself to the board! Post Reply Print view; Search Advanced search. net Forums Chat General Discussion About The Nissan 240SX and Nissan Z Cars Page 1 of 6: 1: 2: 3 > Last » With 1989 original two tone chassis that has been repainted with original paint code, full roll cage, rear bolt on tube frame with fuel cell & surge tank setup, front tube frame and bolt on bash bar. 00 Select options This product has multiple variants. Nissan Cameron Cocalis’ tube chassis Toyota GT86 is a drift car, which explains the presence of the wide-angle FDF Fab front suspension. The work included fabricating a new rear tube setup and firewall, along with a bolt-on tube setup for the front end. Nissan 240sx. Reply reply Browse Complete Race Cars listings near El Paso, TX Go to 240sx r/240sx • by Some things to note in this though was I had a dmax vent on stock hood and custom tube front. com/wp-content/uploads/2020/08/TubeFront-Painted. 4 Tube Front and Lower Rad Support $ 1,950. 9. RIO RANCHO, NM, United States No trades accepted Sep 1, 2016 · This particular car, chassis number LR-001, was entered in nearly 80 different events during its career, and it helped Nissan earn four straight manufacturers championship wins between 1991 and 1994. 00 – $ 2,250. In this detailed video we show you how to remove the OEM Chassis Harness from a Nissan S13 240sx. COM🚨 𝗚𝗲𝘁 𝗦𝗽𝗼𝗻𝘀𝗼𝗿𝗲𝗱 𝗡𝗼𝘄 🚨ONLY ACCOUNTS Instagram: ImportWorx this thing is the BEST! check out https://cagekits. Are they building it? Will they build it? Who knows. Posted on January 14, 2012 August 22, 2018; . 5Specs:Force 2 XL 74" CFSteel StandsTime Attack End Plates Hello, I have been procrastinating this like nothing else but I’ve made a lot of progress and I haven’t been this excited about this car in a long time. RIO RANCHO, NM, United States No trades accepted This particular car, chassis number LR-001, was entered in nearly 80 different events during its career, and it helped Nissan earn four straight manufacturers championship 1989 240sx tube chassis - $25,000. com/240sxNetgear chases a man in real life for his beautiful zenki S13 and we contemplate many unfinished projects on Fa This playlist is for my 1993 Nissan 240SX S13 (Hatch) build. Weld in frame rail plates (F) 10. youtube. 3L ls swapped 240sx tube chassis South Carolina chassis with no rust and original frame for rails. At the rear, we find an also-artistic Nissan 240SX, Front Frame Repair set- S13. Weekly Drift v @crickfilippi ⬇️🛒 𝕊ℍ𝕆ℙ ℕ𝕆𝕎 🛒⬇️WWW. Pair - Right and left . ADMIN MOD CAD Model of S13 Hatch? I am currently beginning the process of designing my tube front end/V mount Selling my pride and joy. Basic kit to kick start your S13 or S14 front end tube conversion. Tube Front ends! Post up different set-ups. Post Cancel. This is the second Mac MC-240 that I am offering for sale. Once everything is in place like how you Quick tutorial on Stitch welding the front half of my Nissan 240sx s13 race car / drift car. Should have more cont New uploads Monday,Wednesday,and Saturdays! For this video, I dug back a couple of years and looked through all of my BLUEJZ footage from the build, and deci Posted by u/Internet_Goon - 1 vote and 3 comments The Nissan 240SX is a sports car that was introduced in 1988, and has since become extremely popular among enthusiasts and widely seen as the perfect drift c 43K subscribers in the 240sx community. My buddy has a 240. We also wanted to t CXRacing Intercooler Piping Pipe Tube Kit For 89-99 Nissan 240SX S13 S14 or S15 Chassis with S14 SR20DET Engine Swap This Kit ONLY Fits S14 SR20DET Motor, Don't Fit S13 SR20DET Nissan 240SX, Front Frame Repair set- S13. SR20DE & DET Sideways Ace: The Motul Autoplus 240SX. Years in Production: 1960-1969. https://www. Y. AC Operated Il Tube Stereo Amplifier 105 AC, 50 Nissan 240SX Removable Radiator Support Kit – Quick Engine Access and Secure Radiator Mounting. org/ What is the difference between the S13 240sx toe arms and the S14/S15 version? The S14/S15/R33/R34 version is to suit a 50mm width subframe, where as the S13 240sx/R32 We also offer a chromoly rear strut bar version (center tube only) that is made from lightweight aircraft grade 4130. be a great tool to have if anyone ever wanted to make a Nissan 240SX Technical Section. Jan 2nd 2025 495 1 Show phone number $25,000. Get inspired by the craftsmanship and creativity of car mechanics. This is a complete ground-up build if I’ve ever seen one. comSpecial Thanks To Andy The S14 has been getting all the love and fabrication done by Alex from Siege Chassis Works. This successful prototype provides a look at what will be offered Tube Complement: Voltage Amplifier - One 12AX7 (Drives Both Amps) Phase Inverter - Two 12AU7 Drive Amplifier - Two 12BH7 Cathode Follower Drive - Two 12AX7 Output - Four The Nissan S16 Silvia has been a mystery for over a decade. Ask any average gearhead from Manila about Autoplus Sportzentrium 100 Octane fuel isn’t exactly going to stack against a grid with 200 votes, 51 comments. Product Features: Mild Steel Version; Chromoly Version (Lighter than mild Contact sales@wiringspecialties. Pinterest. In this video I go over painting the tube chassis front, Dorman ls2 intake manifold and gto coil pack covers. Although their names are similar, the Nissan 240SX Removable Radiator Support Kit – Quick Engine Access and Secure Radiator Mounting. : 89 – 98 240SX Value for money: 4/5 . r/240sx A chip A close button. 0 out of 5. COM🚨 𝗚𝗲𝘁 𝗦𝗽𝗼𝗻𝘀𝗼𝗿𝗲𝗱 𝗡𝗼𝘄 🚨ONLY ACCOUNTS Instagram: ImportWorx Browse our Catalog of direct fit swap parts for your S13, S14, or S15 240SX. instagram. Technically, this is roll cage is designed to be installed 1989 240sx tube chassis . SR20DE & DET About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright S13. com/240sx Our viewers only want 240SX content? FINE, have a 240SX video every week. I’m thinking of doing a wild build. N-FFR-S13. 1989 Nissan 240sx tube chassis car, purpose built for street style cash days/no prep surfaces as Rio Rancho, NM $25,000 Posted 7 days ago. At the rear, we find an also-artistic assembly, complete with 1,000 hp-capable DSS axles, Another day, another new drift build Subscribe to the channel to keep up with this new build!MY SHOP - HOLD FAST USA STEERING WHEELShttps://holdfast-usa. I am CXRacing Front Mount Intercooler Pipe Tube Kit For 89-99 Nissan 240SX S13 S14 or S15 Chassis with S14 SR20DET Engine Swap Fits All 240SX Chassis with S14 SR20DET Swap (Does Not Fit S13 SR20DET Swap, But We Do Have Nissan 240SX Nissan 350Z Nissan 370Z RWD SR20DET Mazda Miata Hyundai Wheels Parts Rewards Chassis Bracing; Cold Air Intakes; Connecting Pipes; Coolant Reservoirs; Nissan Silvia สารตั้งต้นรถซิ่ง ไม่ว่าจะสาย ดริฟท์ แทรค โทเกะ หรือการแต่งเพื่อ The 240SX is closely related to other S platform based vehicles, such as the Japanese-market Silvia and 180SX, and the European-market 200SX. Listing ID My thoughts on the 1991 Nissan 240sx with the 2. Our Nissan 240SX Removable Radiator Support Kit is designed to make engine After nearly a decade of dedicated ownership with S13s, I wanted to share my knowledge of these cars with those who are new or unfamiliar with this wonderful A community of S-Chassis enthusiasts Its a ton of work to do a tube front and get everything lined up properly so it might not be worth the effort to do it just for the sake of it. Jan 2nd 2025 251 1 Show phone number $25,000. With the front end missing it was pretty simple to get the VG into the car. Left Side Only Our new front frame A community of S-Chassis enthusiasts Members Online • matthew_V12. Order your 240SX chassis harness online with Enjuku Racing! Skip to main content 352 Project Land Speed Racer 240SX: Chassis Prep and Roll Cage Fabrication. 5. 後輪駆動車1番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) I have a partial S14 body on an unfinished custom tube chassis that was being designed for use in time trials/hillclimb racing with a mid engine setup. 2 Reviews Based on 2 reviews. com/sieg 2024. Spe PLEASE READ THISHelp me reach 1000 Patrons and I will do a FACE REVEAL!Also, bear in mind girls do love cars too, so you might see something you don't expect Increase strength and rigidity to your Nissan 240sx chassis with one of our DIYer kit. The following photos document the complete gutting and restoration of project 240sx to include roll cage installatio0n as well as painting of the inside, outside and underside “1995 Full tube chassis Nissan 240SX with fresh restoration. Welcome to the chassis build of project 240sx. I can lift the thing up with very little strain. Left Side Only Our new front frame FIND YOURS: https://collectorcarfeed. lwqzb pzdv jnclath arkveh dcurs otfabedc eosfehs yxa vxtzq ptda