NA power

[Clip]

hey all, driving home tonight ive come to the conclusion that i need more power (just to let you guys know, i come to that conclusion about once a day :biglaugh: ).

so here's the plans.

k&n or apex intake, 2.5 inch catback exhaust. thats about all i can think of that are fairly cheap/easy.

then we get into removing the back seat and relocating the battery.

after that all i can think of is to make the engine nice and smooth, but responsive. perhaps a lightened flywheel from fidanza? would there be any benefit to turning up the fuel pressure if i were to get another air flow meter?

what i want to hear from the community:

who's done the basics, who's gone above that. how much improvement did you guys see?

and yes, i know Defiant has one badass engine, but that's out of my price range. this is oriented towards getting the most power for a reasonable amount of money out of an NA.

 

[kwnate]

Flux capacitor, don't worry about going back in time cuz NA's can't reach 88 mph.

Sorry, I couldn't help myself. Open up the intake and the exhaust, thats about all you can do, unless you want some NAWS.

 

[Toyota h8r]

I have a motor waiting to go into my car that is mildly built. 10.5:1 valeno pistons, balenced bottom end, hks 3mm hg and fully rebuilt head. Oh yeah n/a powa! Engine builder said it should put 200 to 250 to wheel. Maybe. Bolt a turbo to that... hmmmm...

 

[89Joe]

The simple solution to all the N/a power issues is a turbo, yet, the idea of doing something different, and unique is a goal for most. There have been hundreds of "N/a enthusiasts" seeking that extra bit of power,yet, what more can you do with a naturally aspirated engine? The simple fact in my honest opinion is that there are much better things to do then invest money into an engine that has more potential turboed.

I don't want this to seem like a bashing in anyway, or sound completely ignorant, but I'm being honest. Don't fool with fuel pressure or the AFM on the car, and you'll get nothing out of the stock AFM. A Lexus AFM wont work either. Open it up, let it breath better, Port out the intake and head, advance the timing slightly. I cant really say much more because there really isn't much out there. I know if you search for it you'll find tons of stuff in regards to this topic.

-Joe

 

[iceberg319]

free up the intake with a filter and some piping and some way of getting it cold air. get a header and 3 inch exhaust (i didnt notice a loss in lowend like everyone says). on my car the fidanza flywheel made it much more responsive (revved a whole lot faster).

itll be fun but its still no turbo

 

[mcpcola]

Cams, Safc Tuning, Header, 2.5 full back, TB swap, Hardpipe intake, K&N filter, Weight reduction. I know of several guys on my lancer forum that have managed to take a 18 sec stock car and turn it in to a low 15 sec I know that 15 is not fast but 3 sec off the 1/4 is a big deal to anyone and no turbo or forced induction to have to worry about. BTW for me AWD and Turbo are the only way to be but alot more to break on a daily driver.

 

[Ma70.Ent]

Other than I/E, I know that if you plan to stay NA, I think an aluminum driveshaft/lighter weight would help you. You may think of removing the backseat/spare tire, but since you're removing weight off the back it might not be a great idea.

 

[Clip]

about the bashing: don't worry about it. i asked the question because i couldnt think of mods for the life of me. i pretty much just wanted to know if the 7mge was running at its full potential or if toyota had capped it here and there for better economy and whatnot.

thanks for the responses!

 

[Yellow 13]

Without over hauling the internals I think Port/polish, BPU and NOS is as good as it gets for the N/A.

You could go way off the normal path and try ITB's, but that means giving up ACIS.

 

[mcpcola]

the 7M is far from running at its max. Easiest is to use the stock GTE elec and turbo setup. If you want NA then you need to get a wideband trim the fuel out till you reach 11.7 to 12.5 stock toyota should be running around 14.5 you need to get a SAFC to do this. Then a good hardpipe with the K&N on it and then Header and high flow cat and then look at P&P the head with some ARP Studs and then Cams nothing extreme that should put you up in the 250 to 300 at the wheel which will be good in a supra for a daily driver.

 

[Clip]

are you saying i need to get a wideband setup and then get an safc to tune the wideband? im a bit confused, sorry.

 

[oscolivar1]

i think he meant get a dafc to tune the feul and air ratios to push out more power and a wideband setup to keep an eye out so u dont detonate your engine

 

[Clip]

so all i need is a wideband gauge and an SAFC to tune the a/f ratio.

so do the maft pro, aem uego, and safc do the same things?

 

[Tire Shredder]

wideband is vital. it should be the first thing you purchase before any kind of tuning, that is unless you want to spend a considerable amount on dyno tuning.

you need more than an SAFC, it tricks the computer into how much air is flowing into the motor and thus load inputs to the ECU are changed. Since the ECU thinks it's under more/less load it will adjust the timing accordingly so it won't blow up (at least in the ecu's mind). an adjustable fuel pressure regulator should be installed in conjunction with an SAFC to atleast get the fuel in the ballpark range...The less tuning you have to do with the SAFC to obtain a good air fuel ratio, the better.

read this, great post by rich http://www.supramania.com/forums/showthread.php?t=27287&highlight=safc

na mods: header, exhaust, cold air intake, port and polish intake manifolds, port and polish head, increase compression slightly by shaving head (ghetto, but cheapest way), install longer duration cams...regrinds are cheap, I'll be going with 222duration at 50 thou with .310 lift.

first should be any exhaust and intake work. THe key to modifying N/As is to not expect too much out of them...do all of that if you want 200whp or so, and know you will be happy with that. If you want more than that, you're wasting your time, go turbo if you want a fast car.

 

[Clip]

damn, guess i gotta do a bit more studying on the workings of the SAFC combined with fuel pressure and timing advance.

 

[mcpcola]

Maft-Pro is really more than you will need for a NA unless you are planning some serious tuning which is going to yield little results on a NA motor. Port and Polish and intake and exhaust is your best place to start then work your way to fuel and timing.

 

[Fuzz420]

hey all, driving home tonight ive come to the conclusion that i need more power (just to let you guys know, i come to that conclusion about once a day :biglaugh: ).

so here's the plans.

k&n or apex intake, 2.5 inch catback exhaust. thats about all i can think of that are fairly cheap/easy.

then we get into removing the back seat and relocating the battery.

after that all i can think of is to make the engine nice and smooth, but responsive. perhaps a lightened flywheel from fidanza? would there be any benefit to turning up the fuel pressure if i were to get another air flow meter?

what i want to hear from the community:

who's done the basics, who's gone above that. how much improvement did you guys see?

and yes, i know Defiant has one badass engine, but that's out of my price range. this is oriented towards getting the most power for a reasonable amount of money out of an NA.

Ive done the i/e removed the back seat,and 1 alum d/s. I know the exhaust worked wonders, major improvement over stock.Intake not as much of noticible difference after over stock. There was gain but it didnt feel as much as when i just had the exhaust, but together the car responds way better.With the addition of the alum. d/s i didnt feel any "power gains" just a faster smoother one. For me theres not much left to do besides boost or add a few more light weight parts.My ultimate goal is na-t not just n/a power so when i purchase mods i think of if it, is it going to help me down the road or not, so i cant justify putting a set of headers on, when i already have a turbo and mani sitting in a box.:naughty:

 

[supramacist]

What header are you running fuzz???

 

[GotToyota?]

http://www.supramania.com/forums/showthread.php?t=30572

 

[Fuzz420]

What header are you running fuzz???

stock:aigo: