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#1 |
![]() Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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I very strongly recommend you find a complete MKIII with turbo from the factory... A GE-T build isn't the easiest/most reliable thing; There's a lot you're going to need otherwise and you'll be piecing things together for a while. (trust me on this
)If you are still interested in going GE-T aka N/A-T then read through this thread: http://www.supramania.com/forums/showthread.php?t=34560 My car is a N/A-T. I'm running a stock 7M-GE with a stock CT-26 turbo, custom full flow oil cooler with thermostat, 7M-GE electronics with a MAFT Pro for fuel, timing and boost control and AFM deletion, LC-1 wideband (for tuning and open loop AFR tracking via the MAFT Pro), and a matched set of injectors (less than .5% variance on average; actually, they're rated 520cc/min at 45psi but I'm running closer to the stock fuel pressure). I'm running a stock composite HG with ARP head bolts torqued to 75ft lbs. I'm still running on the W58 (I don't expect it to last too long). All in all I've got a lot invested in just the conversion.... then there's the supporting mods and maintenance. There are a lot of people who think "Oh, I'll just mount the turbo, swap injectors and add an intercooler."; sadly, their setups don't often last... sometimes they do, but I think that's more a matter of luck. I don't expect my setup to last more than a few years. If/when it does die I'll either buy a complete GTE and swap over what I want to keep; Or I'll move on completely and put the MKIII behind me. Oh, I'm not walking you through this.... I'm just bored...
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#2 | |
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3" Exhaust
Join Date: Nov 2009
Location: Castro Valley, CA
Posts: 248
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Quote:
keep it N/A and thow pointless mods in it? or... turbo it and make sure its done right and baby it to hell so nothing blows?
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86 MKIII Supra East Bay, CA 7mge rebuild. http://www.toyota-supra.info/forums/...-tomorrow.html MKIII commercial http://www.youtube.com/watch?v=HY9W3...om=PL&index=27 lightening build http://www.toyota-supra.info/forums/...ing-build.html |
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#3 |
![]() Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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Okay, then I would talk to them about having the turbo's oil drain location drilled in the block; on the N/A it's not drilled. Draining to the oil pan, as most people do, isn't the best way to do it... it works if you get the drain in precisely the right location, but since they're already at work on it. The oil supply isn't a big deal.
How you proceed from here is really up to you. If you want to take the time and convert it to a N/A-T then go for it; It is fun. If you're building for it you can build it reliably... lower the compression ratio, drill the stock oil drain location, flush the block so that you're sure the oil supply passage for the turbo is free of obstruction, upgrade to GTE injectors or better, add a good fuel controller and get a good safe tune running. Just take your time and you can definitely build a very reliable N/A-T. I'd start with the engine itself and then worry about upgrades a bit at a time. You will lose power going to a lower compression before you add the turbo, but that's alright... The turbo is the last thing you'll add, BTW. |
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#4 |
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3" Exhaust
Join Date: Nov 2009
Location: Castro Valley, CA
Posts: 248
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*sigh* your totally right. seems liek the best way to do this is to wait till im done having the N/A. dont put too much money into the engine and work on other things. then when i feel like having more power i should swap in the gte and have it rebuilt. less head ache. less stress. less money too.
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86 MKIII Supra East Bay, CA 7mge rebuild. http://www.toyota-supra.info/forums/...-tomorrow.html MKIII commercial http://www.youtube.com/watch?v=HY9W3...om=PL&index=27 lightening build http://www.toyota-supra.info/forums/...ing-build.html Last edited by cvbikeguy; 12-04-2009 at 05:27 AM. Reason: insight |
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#5 |
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12psi boost
Join Date: Oct 2009
Location: Crewe, England
Posts: 356
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Tell you what then, seeing as you're getting this block all sorted & you've tipped money into it already then how does this sound?
Pick up a complete turbo car that's either been wrapped round a tree etc, or got a rod through it's belly but good blower, hopefully good head & all the electronics & other bits you need to convert to GTE spec? Then get your man at the shop to drill the oil drain & flush the block as per cre, and instead of buying N/A pistons for whatever oversize the bores are at, just get Turbo ones. That way you get a good as new (better than new bearing in mind overbore) block & all the kit you need to make a real GTE motor... Plus you'll have a certain amount of other spares from the wreck which you can either swap to your car if better, or sell off to make some of your outlay back.
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'89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!
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#6 |
![]() Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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If going turbo, I would definitely avoid boring the block unless it is absolutely required.
I recommend installing forged pistons and new stock rods (forged would be even better). Definitely install a GTE oil pump; it's a much higher flowing pump and you'll want it when you add oil cooler and turbo. Later I would install upgraded injectors and swap in GTE electronics and upgraded fuel pump. |
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#7 |
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3" Exhaust
Join Date: Nov 2009
Location: Castro Valley, CA
Posts: 248
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Cre got a new avatar!! cool
so the build continues. just as promised my rebuild kit has come in. new pistons, gaskets, water pump and what-not. free 2 day shipping!!! $275 so due to this being my DD and my boss saying im gonna start work again soon, i decided to keep in N/A but going with Cre's advice i wont invest into this motor till i can get a new one and go turbo. after this build is dont ill invest in other things. soo today im going to the machine shop so i can drop off the pistons and they can test the cylinders and give me my block back! sweeeet. new head still hasnt come back yet. oh and since me and the lady are going to repaint the body eventually...... we got busy ![]() ![]() covers look pretty dang good amazing having a girl that can wrench ![]()
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86 MKIII Supra East Bay, CA 7mge rebuild. http://www.toyota-supra.info/forums/...-tomorrow.html MKIII commercial http://www.youtube.com/watch?v=HY9W3...om=PL&index=27 lightening build http://www.toyota-supra.info/forums/...ing-build.html |
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#8 | |
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3" Exhaust
Join Date: Sep 2009
Location: Las Vegas
Posts: 167
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Quote:
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#9 |
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3" Exhaust
Join Date: Nov 2009
Location: Castro Valley, CA
Posts: 248
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prep work
![]() ![]() and paint ![]() ![]() man feels like my girl is doing most of the work..... my friend is talking about getting rid of his 1j and going 2j...... hmmmmm
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86 MKIII Supra East Bay, CA 7mge rebuild. http://www.toyota-supra.info/forums/...-tomorrow.html MKIII commercial http://www.youtube.com/watch?v=HY9W3...om=PL&index=27 lightening build http://www.toyota-supra.info/forums/...ing-build.html |
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#10 |
![]() Toyota Racing Development Join Date: Apr 2007
Posts: 5,038
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You've got that feeling too eh?
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If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. ![]() Tip Jar ---> ![]() |
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