More power less stuff ???

supraluver4life · 08-12-2010, 02:50 AM

so im currently building a mostly stock 7mgte. Im shooting for around 350-400 horses. One of my big pet peeves with the supra is all the electrical humbo jumbo. Basically what i would like to do is make my own wiring harness and strip down as many things off the car as is possible. All i want under the hood is an engine, none of the electronic BS that came ion the supras. if someone could chime in with any threads about maybe EGR removal or such things that would be great. And i would really like to know what must stay. i really want to simplify this car and not have to worry about elecricalo problems ever again. Oh and can i use the stock ECU with everything missing? And no i dont car about check engine lights at all!!!!

thanks

MJG · 08-12-2010, 03:00 AM

Have you considered selling the Supra and buying a "57" Chevy?

supraluver4life · 08-12-2010, 03:07 AM

More like a 240sx s13 haha. But i love my poopra too much. Ive seen builds done with simplification but im not sure how to approach it. I have a spare wiring harness that im essentially going to tear apart and refine, simplify, and make more discrete (harness tuck).

cre · 08-12-2010, 03:33 AM

Plenty of electrical in the 240 last I worked on one.

You're not going to be able to use the stock ecu at all actually. Do remove all the electrical you've have to convert to a distributor with vacuum advance and ditch the fuel injection in favor of a carb... The ECU's programming is too dynamic, too tailored for every subtle change for you to start deleting sensors left and right (besides, you could only pull half of it unless you really convert to a carb and dizzy)... that's the entire point, wring out as much power as possible under as many conditions as possible.

supraluver4life · 08-12-2010, 03:45 AM

so to keep the efi, distributor-less spark, and keep electronic tuning capabilities, what can i remove? What sensors? Can someone point me to an EGR removal write up? because i cant find one for the life of me. Maybe i exaggerated a little about how simple i want it. I would just like it to look a little more refined under the hood.

cre · 08-12-2010, 03:49 AM

You may delete the A/C and it's wiring and aux fan and you may delete the TEMS system and the power steering... if you want to keep your power you'd best leave the EFI system alone.

Leave the EGR, it reduces combustion chamber temps and costs the 7M no power. Otherwise you'll also need to source a JDM ECU and deal with the fact that it's got a governor on it.

Leave the charcoal canister, that one you can replace with a much smaller one from a Tercel and tuck it inside the fender.

08-12-2010, 02:50 AM	#1
supraluver4life 3" Exhaust Join Date: Nov 2009 Location: Santa Fe, NM Posts: 135	More power less stuff ??? so im currently building a mostly stock 7mgte. Im shooting for around 350-400 horses. One of my big pet peeves with the supra is all the electrical humbo jumbo. Basically what i would like to do is make my own wiring harness and strip down as many things off the car as is possible. All i want under the hood is an engine, none of the electronic BS that came ion the supras. if someone could chime in with any threads about maybe EGR removal or such things that would be great. And i would really like to know what must stay. i really want to simplify this car and not have to worry about elecricalo problems ever again. Oh and can i use the stock ECU with everything missing? And no i dont car about check engine lights at all!!!! thanks __________________ Cusco front, Tein Rear coilovers Massive DDP, 3'' custom catless exhaust, Tsudo muffler 4.5'' outlet, Apexi cold air intake, Act stage 3 clutch, ct26 turbo (stock)- 10psi +300rwhp "Not driving a car because its too nice, is like not fucking your gf so shes still tight for the next guy"

08-12-2010, 03:07 AM	#3
supraluver4life 3" Exhaust Join Date: Nov 2009 Location: Santa Fe, NM Posts: 135	More like a 240sx s13 haha. But i love my poopra too much. Ive seen builds done with simplification but im not sure how to approach it. I have a spare wiring harness that im essentially going to tear apart and refine, simplify, and make more discrete (harness tuck). __________________ Cusco front, Tein Rear coilovers Massive DDP, 3'' custom catless exhaust, Tsudo muffler 4.5'' outlet, Apexi cold air intake, Act stage 3 clutch, ct26 turbo (stock)- 10psi +300rwhp "Not driving a car because its too nice, is like not fucking your gf so shes still tight for the next guy"

08-12-2010, 03:33 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Plenty of electrical in the 240 last I worked on one. You're not going to be able to use the stock ecu at all actually. Do remove all the electrical you've have to convert to a distributor with vacuum advance and ditch the fuel injection in favor of a carb... The ECU's programming is too dynamic, too tailored for every subtle change for you to start deleting sensors left and right (besides, you could only pull half of it unless you really convert to a carb and dizzy)... that's the entire point, wring out as much power as possible under as many conditions as possible. __________________ 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 --->

08-12-2010, 03:45 AM	#5
supraluver4life 3" Exhaust Join Date: Nov 2009 Location: Santa Fe, NM Posts: 135	so to keep the efi, distributor-less spark, and keep electronic tuning capabilities, what can i remove? What sensors? Can someone point me to an EGR removal write up? because i cant find one for the life of me. Maybe i exaggerated a little about how simple i want it. I would just like it to look a little more refined under the hood. __________________ Cusco front, Tein Rear coilovers Massive DDP, 3'' custom catless exhaust, Tsudo muffler 4.5'' outlet, Apexi cold air intake, Act stage 3 clutch, ct26 turbo (stock)- 10psi +300rwhp "Not driving a car because its too nice, is like not fucking your gf so shes still tight for the next guy"

08-12-2010, 03:49 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	You may delete the A/C and it's wiring and aux fan and you may delete the TEMS system and the power steering... if you want to keep your power you'd best leave the EFI system alone. Leave the EGR, it reduces combustion chamber temps and costs the 7M no power. Otherwise you'll also need to source a JDM ECU and deal with the fact that it's got a governor on it. Leave the charcoal canister, that one you can replace with a much smaller one from a Tercel and tuck it inside the fender. __________________ 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 --->

08-12-2010, 03:00 AM	#2
MJG 3" Exhaust Join Date: Mar 2010 Location: Washington State Posts: 125	Have you considered selling the Supra and buying a "57" Chevy?

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