what should i do next?

[stuart w]

hi all i have a 1994 supra sz n/a manuel, i have spent some serious cash over the last few months tunning it but i have ran out of ideas what to do.

tunning so far:
5zigen induction kit with cold air feed.
blitz nur spec r cat back with sports cracing manifold from ab88 racing.
buddyclub ecu.
full new crank cons and pistons.
port polished and skimed head.
1mm oversized titanium valves and retaners+springs.
crowler268 cams.
new 6 puck clutch and bearings.
lightweight aluminium flywheel(10lbs)
bigger injectors and fuel pump.

i know i need a turbo to get serious bhp but is ther anything else i can do?
many thanks

[Gambit]

My opinion m8, you've already done more than most do with an N/A.
If you're going to mod a Supra for power you really need that tubby.

With an N/A once you've opened up the exhaust, tweaked ecu, fueling and air that's about it. imo


Have you dyno'd it to see what power it's running at the moment?

[stuart w]

i have been looking at a stage 1 turbo kit from mvpmotorsport.com they supply the following:

Boost Logic Turbo Kit for 1993-97 Supra Non-Turbo (and SC300) - Stage 1
Part # Bst Log NA TK Stg1
This kit contains everything you need to convert your Non Turbo MKIV Supra or SC300 into a turbo charged sleeper. Here is the list of parts included:

•Boost Logic 321SS Tubular Manifold 1 5/8” Tubing and 1/2” Thick 321SS Flanges
•(Turbo’s with a 4” inlet clears the distributor. Manifold fits a turbo up to a T76)
•T61 Turbo w/ T4 flange
•HKS 40mm Wastegate
•3” SS304 Polished Downpipe w/ Flex Joint
•3” SS304 Polished Midpipe
•SS304 Polished Dump Tube
•2 ½” Polished Aluminum IC piping
•3” Polished Aluminum Intake Pipe
•Boost Logic FMIC Kit
•Boost Logic NA-T SS Braided Oil Feed and Return Kit w/ Aeroquip fittings
•3” K&N Filter
•K&N Breathers
•Walbro GSS341 255HP Fuel Pump w/ Install Kit
•All necessary clamps and bolts for installation

since i have now ran out of money just need funds can do all the labour my self can any one recomend boostlogic as a good manufacturer of turb kits. cheers

[stuart w]

Originally Posted by Gambit

My opinion m8, you've already done more than most do with an N/A.
If you're going to mod a Supra for power you really need that tubby.

With an N/A once you've opened up the exhaust, tweaked ecu, fueling and air that's about it. imo


Have you dyno'd it to see what power it's running at the moment?

had it dyno'd not to long ago producing 350bhp just a little more than a turbo can't remember the torque though some new pics on my profile soon.

[Martin F]

Originally Posted by stuart w

This kit contains everything you need to convert your Non Turbo MKIV Supra or SC300 into a turbo charged sleeper.

Not quite true, it doesn't include an ECU, or piggy back.

I was going to have some questions about your mods, but 350BHP is pretty impressive for NA upgrades so they must be working well.

Other than increasing the displacement, the only other options are NOS or forced induction.

[Gambit]

350bhp is a hell of a lot on an N/A

Normally at this poin't I'd say "are you sure??"

Not meaning to rain on your fire but stock N/A is 225bhp so milking 125 extra bhp out of it seems quite a lot to me.

I was actually expecting Martin to post this, but as he didn't I guess it sounds ok...

[Martin F]

I'm waiting for the dyno plot

[Gambit]

Originally Posted by Martin F

I'm waiting for the dyno plot

That's better, don't let me be the only pessimistic on here.

[ADZsupra1]

hey stu, have to agree thats a hell of alot for an N/A, but not impossible...jonah jones on here had a black n/a some time ago, my old TT at the time had been dyno'd at 427bhp.with some good quarter mile times... on a high speed run we did he matched me,foot to the floor, neck and neck all the way up to some silly speed...my acelleration was alot quicker but on a rolling run his was blistering for an n/a....just a shame he didnt get his tested before he sold it.

As for boostlogic parts, I havent seen too much over it over here but I know in the states they do have a good reputation and the quality seems top notch ! the tubbies and auto boxes are very very good!!

Paul Whiffin is also putting together some nice turbo kit with some nice performance figures coming out of the Borg Warner tubbies he's using. Maybe worth speaking to him.

Whatever you go for mate, keep use posted sounds like a good project.