More power.

[supercharged89dude]

Ok. Car is an 89 Superchaged 5 spd car. Besides twincharging or going strictly turbo, is there anyway to make somewhere around like 230 to 235hp? Can i do like a non-supercharged cam swap to make power?

How bout geting a rad. fan to fit to the intercoller to cool it down more?

Can i do bigger injectors or fuel pump and naturally make power?

Wat about exhaust wise? I was just going to do straight pips as much as posible with either a gutted cat with straight pipe or just going with a straight pips for a cat. Then i was thinking either just anothewr straight pipe for a muffler or mayb a glasspack? Is this good for the supercharger?

I can do a smaller pulley on the super right? Along with the ovious bigger air intake and better filters and wat not.

How bout to just make it faster rear grs? is ther grs i can swap with. I know with my 93 T/A i did 3.73s and i woke the car up.

Can i also just do a PCM tune? possible?

[rspidydude]

putting a fan under the i/c cools it down alot, i used a fan that is just like the one in the vent, and wired it up to a switch.About the injectors, if u add more fuel then u need more air. if u get an underdrive/overdrive pully then youll need to do the abv bypass mod. if you need any more help just pm me.

aim-rspidydude
88 s/c t-tops 5spd

[CpuZapper]

I have never heard of, seen, or even know on what planet you would need to be on, but the SC-12 (supercharger on a SC MK1) will make +200hp unless you're on the bottle.

Non-SC cams will give you a couple HP, but not much.

If you are doing auto-x, a SPAL fan under the intercooler will help with heatsoak some, but if you are doing track racing, it has been tested by a good number of well respected MR2 folks that the fan will actually restrict the airflow at highspeeds. The engine bay is designed to move air up through the vents at +50ish mph. You can put strings on the grill, and watch as you come up to speed. At first they will lay down or go all over the place, but as you come over 50mph, they will begin to stand straight up off of the vent. The problem is is that it is hot air. You should consider installing an air-to-water intercooler setup if cold intake charge is your concern.

The injectors that are in your car now are perfectly sized for the power that the SC-12 can make. They will even work with a turbo up to about 240 Flywheel HP at 60psi fuel pressure. Going with a bigger fuel pump (Walbro 255LPH) will overrun the stock FPR and you will end up with a really rich mixture. Too rich to make good power.

An exhaust will not net you much on any SC. Toyota claims that the free flowing exhaust they installed on the AE111 over the AE110 gave it 5 hp, but it would have to be pretty restrictive to do that. The AE110/111 engine has a smaller pulley on the Supercharger itself, and is 8.9:1 compression instead of 8.0:1 like the US 4AGZE. You can get the TRD header which is nice bling, and might give you a couple hp, and you can get rid of the stock muffler and cat. The biggest gain you will get with the exhaust is to make it as light as possible since the weight savings will give better performance than the HP gained from a header back exhaust.

You can install the speedchaser pulley on the SC if you can find one. It is basically the JDM pulley IIRC. You can also look into crank pulleys. They will spin the water pump faster too, but it's not that big of a deal unless you plan to spend all day +5K rpm. I've always reccomended Non-Stop Tuning's pulleys as they make the biggest one you can get. Their 180mm kit basically maxes out the SC-12 at around 13.5 psi (depending on temp, IC heatsoak, boost leaks, etc). And yes, you will definately need to do the ABV bypass mod (I have vacuum diagrams if you want) if you want to up the boost with pulleys over 8psi.

There isn't a whole lot for the rear gear set on the E-51 SC transmission. I've never actually heard of, or attempted to put in a different ratio, as first is already too short for the car, and fifth leaves you cruising at a pretty high RPM even with the E-51's taller gears. I do know that you can stuff in an LSD for a MK2 Turbo transmission - E-153 I think - (you just need to swap speedometer drive gears) as they are the same gearset, just a different case.

There is no ECM/PCM tune available for the 4AGZE ecu. There are piggybacks that will work OK (HKS F-Con) and several companies in Japan offered custom retuned ECUs (Mines, TOMs I think too) but they are for the JDM 4AGE (non-SC). You can go to a standalone system if you feel like doing some wiring, and then you have to figure out how to trigger the SC, and all the valves and solenoids that operate it. It's easier to stay with the SC computer and go turbo if you want to make over 200hp. I have seen many F-Con setups for a turbo'd 4AGZE, and I know the stock ECU can handle upwards of 14psi without problems. Getting rid the the ~50hp parasitic drag of the SC and still providing the same boost from a turbo can make a heck of a difference. You'll lose some low end grunt, but the top end will make up for it.

There's my

EDIT: Here is the site for Non-Stop Tuning:
http://www.nonstoptuning.com/pKitToyMR2GZ.htm

And here is the ABV Mod:
http://www.mr2board.com/forums/93595...MR2-post5.html
Hope you don't mind me cross-posting your thread rspidydude

[Mista 2]

i have heard that putting a 20V head onto the SC block can net good power with a bit of work but for some more ideas try here. http://shell.deru.com/~sgn1/AW11/Engswap.htm
they have some good info, hope it helps

[ybotspawn]

You could always do the following...

Upgrade SC12 s/c to SC14 (found on JDM mid engine siennas i believe)
bigger better flowing IC
full exhuast nix the cat (illegal)
perf supercharger pulley (company in australia does alot of this, pm for details)

or since you do have forged internals that can handle it

remove the s/c
add turbo/tmic
bypass stock computer... add Motec/SAFC/insert your favorite here
full exhuast
set turbo to 12-14 psi and kick ass