n/a advice

[dj7mge]

i'm new to this forum but i post on toyota-supra.info on occasion i posted this thread there but no one responded

ok i know this has been beaten to death but i want to make more power out of my 7mGE. i know i could build the head and raise compression or do a turbo swap none of wich i have the money for atm. id just like to get around a 15flat possibly high 14. my car currently runs a 15.6 with an intake pacesetter exhaust no cat fd rx7 wheels with cooper zeon?tires and a fidanza flywheel.

i will be installing a pacesetter header and straight piping all the way to the testpipe and some suspension/break pices as i will be doing some light autox and road course racing. i have those pices picked out already. i also am removing some unneeded stuff such as tems cruise and a/c.

i have done some research but i have some questions.

first off upgrading the throttle body. i've people have used some tb's from other cars that are bigger then the stock ge but what tb's can i use from other cars?

second i know these cars are very heavy and i will be lightening it up somewhat but not completely gutting it because the car is very clean and is my dd, i know the seats weigh alot especially the drivers seat. my question is what seat could i swap in that would be lighter without spending big $ on racing seats.


thats all i can think of atm any and all advice will be greatly appreciated.

 

[gaboonviper85]

The 7mge does not respond well at all to bolt on's!!! You are beating your dick against the wall getting an exhaust system etc as you won't see power gains! Going with a diff throttle again won't get you power as the stock throttle is the perfect size! Toyota pretty much maxed this motor out from the factory!! The only mods you can do that will net you power are lightweight internal motor parts and extream high compression pistons! To get 14's your looking at almost 300hp and you will not see that out of a 7mge without BIG MONEY!

The seats aren't that heavy...the drivers is heavier but not heavy enough to make a difference....ripping out ac is kinda pointless as you are going to take away whatever value is left in your car!

My advice to you is maintain the car as a good daily driver, don't autox it as you'll soon get rodknock as our oilpans suck, and dont go modding things untill you have the money to get serious!!!!

My supra is an n/a.....I bought a turbo supra to make power....see where I'm goin with this? Nothing you do will make your n/a perform like you are asking with a limited budget...not even remotely close:-(

 

[dj7mge]

i understand that there isnt much that can be done to the 7mge and i know i wont get crazy power gains by going on with my plan but with what i have done so far the car has responded very well to. i have a 2.5" catback i gutted my cat and that was the biggest gain aside from my fidanza flywheel. i went from a 16.2 to a 15.6 with just those few mods. i feel i am being realistic with what id like to do as far as getting a 15flat or close to it. a turbo swap is on the horizon but i believe its smarter to make my car handle and more importantly STOP the added power from the turbo and my current na engine is running very strong so it isnt important to me to swap the gte in untill it is near its end. As far as telling me not to autox or road race my car i dont understand. any type of racing will increase the probability of a rod knock or other internal problems. what's the point of owning one of these cars if you dont race it? wouldnt you just drive a camry then?

 

[hvyman]

your not going to get much power out of the ge end of story. go gte or settle with the ge.

 

[gaboonviper85]

i understand that there isnt much that can be done to the 7mge and i know i wont get crazy power gains by going on with my plan but with what i have done so far the car has responded very well to. i have a 2.5" catback i gutted my cat and that was the biggest gain aside from my fidanza flywheel. i went from a 16.2 to a 15.6 with just those few mods. i feel i am being realistic with what id like to do as far as getting a 15flat or close to it. a turbo swap is on the horizon but i believe its smarter to make my car handle and more importantly STOP the added power from the turbo and my current na engine is running very strong so it isnt important to me to swap the gte in untill it is near its end. As far as telling me not to autox or road race my car i dont understand. any type of racing will increase the probability of a rod knock or other internal problems. what's the point of owning one of these cars if you dont race it? wouldnt you just drive a camry then?

i too have a fidanza flywheel....i also have a single piece aluminum driveshaft....and no it doesnt respond well! what you feel is pure ass dyno...placebo effect! yes it changes a bit but 5hp if that which you will never ever feel....yeah rpms drop faster but the car is no more powerful and its not the reason you went from 16.2 too 15.6 you got that cause you simply got better....the stock cat isnt that constrictive to be honest unless it was clogged.

what you are doing by modding your 7mge is prolonging the time in which you could convert to gte....honestly toyota squeezed every bit of power damn near possible from the ge that the motor could produce with the internals that it has.....this topic has been beat to death and results are always the same bro! there is a member here who has spent thousands on his ge and its still gutless compared to a basic modded gte!

if your ge is that strong and well maintained then fuck all that shit your doing....buy some stock turbo parts, do a metal headgasket and boost your ge!

im not trying to convince you to not mod your ge cause the ge fails...no im indeed trying to convince you that our mkiii chassis are too damn heavy for such a small NA motor....and i dont understand why you would rip stuff off your na after you said it was in great shape???!!!! buy a shit supra to tear appart...boost your nice supra and have a really nice fucking fast car with working accessories! as far as weight savings this too has been beat to death and has been agreed upon that the only way we can drop weight is with a better motor that doesnt weight so much and haveing tube frame subframes!

if you were smart youd buy parts that will work for your na that will also work for a turbo....such as a nice radiator, misc hoses, nice breaks, nice suspension, oil filter relocation and thermo controled full flow oil cooler, etc....the turbo and non turbo flywheels are not interchangeable so you wasted that money already....yes i have that stuff too but i did that cause i blew a transmission and driveshaft and needed good parts fast and didnt have time to regrind the stock flywheel.

as far as racing goes.....our oil pans arent baffled very well and dont hold enough oil....fast stop and go and sharp turns makes our oil slosh and uncovers the oil pickup causeing us to loose oil flow for split seconds....you must be very cautious of your oil level at all times!!! this isnt like a guarentee but it is common knowledge and so many of the member have all rod knocked their motor....a new motor and an old motor have nothing to do with rod knock as oil flow keeps the crank off the bearings which means they both will rodknock if put threw hell without attention to the minor shit such as oil....invest in having your oilpan modded to hold 3 extra quarts and baffled better....

i dont mean to sound like an asshole....im just trying to help you....honestly nothing you do will make you happy with the na....they are gutless motors in a 3000 pound car....the best mod you can do for your na is pull it and put it in a mkii supra!!!!! <----makes for a very fun car!

 

[Moy]

what's the point of owning one of these cars if you dont race it? wouldnt you just drive a camry then?

Um... not everyone wants to beat the living piss out of their car. Racing puts a lot of stress on the engine and suspension of the car, some people want their cars to last.

 

[jdub]

djmge - You are new so I'm going to give you a clue. You need to look around the site before you post. We have specific sections for different engines...the general section is for things that are common to all MK III's.

Please read the stickies in the Intro, Tech, and General sections. Please pay attention where to post in the future...SM uses an infraction system to enforce the rules...accumulate enough infractions (like this one) and it can result in an automatic ban. Just a warning...thread moved.

 

[supra_man87]

Well since everyone is bashing the idea to death, ill be the first to say something good. Lol. Eventhough I agree our engine is tough to mod without $$$, I personally think its impressive he's running a 15.6. My best time is a 19.0, I'm auto at a mile above sea level, I think his time is respectively fast for a n/a. So I'll give him that.

As far as modding, why doesn't he go maft pro? Eventhough its like 800 bucks, he could prolly benefit a lot from it. Get rid of the afm, able to run 550's, and do a lot of tuning. That'll shave some time off.

 

[RazoE]

yeah, I love 7MGE's, very smooth, quiet and fairly powerful..

plus they sound good with exhausts...

of course, when I wanted more power, I swapped to a 7MGTE, there's just no substitute for turbo power...

 

[Sideways_bob]

I did this and I enjoy my Supra, everyday.

1. New plugs and wires
2. Clear all the codes
3. Fix all the broken, brittle wires.
4. Oil change, filter change
5. New headgasket
6. New headbolts
7. New clutch, slave


Do regular maint. Get it running perfect, fuck modding it. Lighten it up, get good tires and make your time at the strip.

You're not going to get "holllyyy shitttt duane type power". But a stock, lightened, good running 5 speed n/a is a good fun car.

 

[ricerkid]

a small shot of nitrous will get you into the 14's... and maybe then some

 

[dj7mge]

Um... not everyone wants to beat the living piss out of their car. Racing puts a lot of stress on the engine and suspension of the car, some people want their cars to last.

i dont beat the piss out of my car its my daily so when i drive it daily it stays below 3500rpm but when i take it to a track a couple times a year its all out. i've owned this car for almost 2 years and put 20k on it i was just looking for some free cheap things to do untill tax time so i can do a turbo swap

 

[dj7mge]

I did this and I enjoy my Supra, everyday.

1. New plugs and wires
2. Clear all the codes
3. Fix all the broken, brittle wires.
4. Oil change, filter change
5. New headgasket
6. New headbolts
7. New clutch, slave


Do regular maint. Get it running perfect, fuck modding it. Lighten it up, get good tires and make your time at the strip.

You're not going to get "holllyyy shitttt duane type power". But a stock, lightened, good running 5 speed n/a is a good fun car.

done all of the above except weight reduction i know with the n/a engine it would never be fast i just wanted to try to improve it while i'm building my suspension/breaks but it looks like there really isnt anything that is worth doing so i'll just leave it then.

 

[gofastgeorge]

Don't waste your mony on building a quicker NA.
Unless you are some kind of fanatic, like me, and just doing it to see what is possible.
I also collect old vitage kart engines, and vintage slot cars.
No money in it, but I enjoy it.

But I am also building a turbo car, because I actually want to go fast too.

 

[AJ'S 88NA]

You can have fun with an NA. I did the same thing years ago much the same as you want to, except drag strip. Did some minor mods at first, headers, intake, suspension, etc.Then like others said sharp turns and hard breaking at the same time is a problem. Mine did it 4 times at Sebring before I realized what it was. "Then" found out about this site. I then added 2" to my oil pan the last rebuild.

I'm a fanatic like George though

 

[dj7mge]

didn't know that was a problem with these cars. i know oil tends to slosh around in anycar under those conditions but not to the point where it would be starved. i will look into an aftermarket pan before i do anymore track days. as for going fast that will happen when time and money allows most likely tax time next year:icon_bigg:

 

[gofastgeorge]

i will look into an aftermarket pan before i do anymore track days.

They don't exist.......
The only commercially made pan was the magnisium Gr.A pan,
and they are few, and far between, not to mention very expensive.

Check out this thread on building your own:
http://www.supramania.com/forums/showthread.php?t=31378&page=24

 

[dj7mge]

thanks for the link i will consider that. anyone know if a shallow pan would work the same way as far as keeping the engine fed with oil? just curious because i would much rather fab a shallow pan then cut up my stock pan and take the risk of messing it up.

 

[gofastgeorge]

thanks for the link i will consider that. anyone know if a shallow pan would work the same way as far as keeping the engine fed with oil? just curious because i would much rather fab a shallow pan then cut up my stock pan and take the risk of messing it up.

Only if you run a dry sump system, you need some place to hold your oil.....

Pans are cheap, go find one off a DOA Supra to modify.
That way you don't have to butcher your stock one.

I just parted out a late 7MGTE to get the block.
I'll send the pan to Wisconsin for $25.
Send a PM if interrested.