More Power From 4A-GE?

[lvn_mr2]

whats a good way of getting more power from a 4A-GE? its 130BHP stock....want more without going forced induction, this is my daily driver, i now have a race car. Only knowen mods at present are TRD Cams and a TRD induction Kit. oh BTW this is the last gen of the 16V.

cheers

[THA SHZ]

Hey dude check out this page sure to interest you www.billzilla.org/4agmods.htm
you'll find everything you need there
lataz , pete

[PumpN]

-exhaust (any local muffler shop should be able to do a performance alternative)
-extractors (custom made or off the shelf, harder to find and the gains aren't great unless you have done other mods)
-mild cams (still streetable with a bit more up top, kelford cams in chch do a ripping trade)
-cool air (pod filter *should be boxed* or high flow panel, go for a brand like K&N)
-plugs and leads (gains aren't impressive but you should notice a difference on an old car)
-lose some weight (off the car or your waist, which evers easiest)
-ECU (makes power from all your bolt ons but only if its tuned well, expensive option when you get serious)
-TRD head gasket (metal, thinner so it raises compression)

[92GTApex]

Beyond that your looking at a compression ratio increase and some headwork, which could lead to another cam...
It just goes on and on

Logan

[lvn_mr2]

good to see another dude from LVN!

okay cams are TRD, and i've been told by a couple of toyota "experts" thta i can't go much better. has new leads, new coil, all new seals (dam just did HG too), air filter is a K & N drop in replacement (car has air surge tank so POD is out at the mo) and it ducts air directly from outside the car (as most mr2's do). Been thinking of polishing ports, any gain?

performance exhaust: has one but i'm cutting it up! im going back to semi-stock, going to run with a gutted cat as i've been told by numeruos people in the mr2 club that it will give a better gain on these cars than a aftermarket one will, and i believe that as my other aw11 has a 3" straight thru on it with some ranom huge muffler on it and its insanely loud but no benefits.

if i was going to go stand alone EMS i would go turbo aswell, but as this car is my daily driver i cannot be bothered. only want another 20BHP so i get 150 and i'll be close enough to the 20v

[liftback]

You could always go carbs...

[strap-on]

2 tell u the truth u probably already do have more power than the 20v

[PumpN]

Been thinking of polishing ports, any gain?

performance exhaust: has one but i'm cutting it up! im going back to semi-stock, going to run with a gutted cat as i've been told by numeruos people in the mr2 club that it will give a better gain on these cars than a aftermarket one will, and i believe that as my other aw11 has a 3" straight thru on it with some ranom huge muffler on it and its insanely loud but no benefits.

polishing is a pretty major job, i haven't done it but i know you can't do too much to the inlet side as it needs to have a slightly rough finish to help the fuel atomise better, on the exhaust side you can go to a mirror finish but i doubt you would make good gains without port matching to good headers and a free flowing exhaust.

definetly gut the cat, or you can get a test pipe (de-cat) which will get rid of it completely and replace it will a piece of straight pipe, i wouldn't bother with a bigger or highflow cat as emmissions law mean you dont need one at all. 3" is way too big for a 1600cc naturally aspirated engine you shouldn't need anything bigger than 2 1/2", you should be able to get a decent gain without making the car stupidly loud *looks at got20v*

[liftback]

You have to remember that an mr2 has a much shorter exhaust than other cars, so im assuming that this would hinder keeping it quiet

[lvn_mr2]

keeping it quite is a problem, the stock drum does a pretty good job with a complete cat, but not sure of sound with a gutted cat. so it looks like a bit of polishing and poss a thinner HG, who makes a good thinner HG? Might also look at going to Mclaren in welly for some serious tuning up..

[liftback]

trd make a metal .8mm HG if i remember correctly

[matt dunn]

You could always go carbs...

no....he wants more power.

Carbs can come close to good injection but a slight temp change or different atmospheric condtions and you lose all your gains and as it's a daily driver you can beat injection for start-up and drivability.

[Drifter4ag]

carbs are shit ...
you want 150ps ?
stock bluetop engine with .5off the head and .8mm headgasket and link ecu will be easy 150 ps after tune

[lvn_mr2]

Carbs....not in my favour. I'm thinking of thinner HG and does anyone know if the high comp small port pistons will fit into 1990 large port red/black top?

IF i wanted POWER i would look into TwinCharging muhahaha. 12PSI at idle and a a nice smooth change over to some nice amount of turbo boost

[EVLGTZ]

Carbs....not in my favour. I'm thinking of thinner HG and does anyone know if the high comp small port pistons will fit into 1990 large port red/black top?

IF i wanted POWER i would look into TwinCharging muhahaha. 12PSI at idle and a a nice smooth change over to some nice amount of turbo boost

well its nice to LOOK at it and all but how realistic would it really be to you undertaking a twincharge setup? Its not as easy as it looks.

If ya want all out power, the big turbo setup would be the way to go anyway

[lvn_mr2]

theres a proper twincharging kit out there, HKS no longer makes the kit but theres a place in the states that makes the kit. It produces 300RWHP nicely or as they claim. theres a twin charged aw11 in auckland that has the original HKS kit on it and he reckons he could install it in a weekend and have it running. And the only problem with a BIG turbo is spooling time, aw11's were made to be very responsive, not to wait around for a turbo to spool, and thats why they were supercharged, and the twincharge kit was there for people who wanted big numbers.

[liftback]

Yet you will find that spool up time isint much of an issue for big turbos on 4age's (from what ive heard). Gimme big turbo over twincharge anyday.... superchargers are waaay too overated, sc12 is poo.

[EVLGTZ]

Yet you will find that spool up time isint much of an issue for big turbos on 4age's (from what ive heard). Gimme big turbo over twincharge anyday.... superchargers are waaay too overated, sc12 is poo.

respekta!

[liftback]

[MetalupYoAss]

you could go for quad throttles off a 20v, then you'd be making more power then a 4agze with a bit of tuning.