Has anyone dynoed their stock Mk3 supra turbo?

[allfans26]

This is just a curious question that I had lingering for a while. I know that Toyota advertised 232 HP @ 5600 rpm with later models of the supra (1990-1992). I was wondering what the WHP would be on a stock. I know about the 15% - 20% HP loss due to automatic/manual transmission and crank shaft translation but I never knew a real number HP readout at the wheels. If anyone has done one, do you mind sharing your results? Thanks! Since I have a stock supra (auto) I'm expecting 185 WHP off an stock mk3 with respect to 20% HP loss of 232 crank HP. (In terms of stock, I mean straight out of the factory. Sure some air intake mods but nothing too dramatic to increase horsepower/flow.) Is that true compared to your results?


Thanks, Branden

 

[shipkiller]

we saw 173rwhp this summer at a dyno event on a 88 7mgte R154, only mod was a 3" elbow and downpipe. On a mustang dyno mind you.

 

[JDMMA70]

170ish whp is what you can expect Saw similar numbers on a dyno jet

 

[SupraClaou]

damn , that's a big loss of hp... 60 hp drivetrain loss from 232 flywheel hp!
Thought it was around 190-195 to the wheel for the turbo model...

 

[Nick M]

damn , that's a big loss of hp... 60 hp drivetrain loss from 232 flywheel hp!
Thought it was around 190-195 to the wheel for the turbo model...

Mass production prohibits all cars from being either 230/246 or 232/256. Boost varies from automatic to manual with the fluid coupling. Specifically, boost will vary from 4.8-7.5 psi stock. That is by the book.

 

[suprarx7nut]

damn , that's a big loss of hp... 60 hp drivetrain loss from 232 flywheel hp!
Thought it was around 190-195 to the wheel for the turbo model...

Well, standard drivetrain losses are 15-25% and I'm sure the motor was worn at least a little bit. 170whp seems about right, unfortunately. Thankfully, you can up that quite a bit with just a boost controller. ;-)

There a thread on here about dyno results. You can get a feel for what's possible with a given set of mods.

 

[allfans26]

Well, standard drivetrain losses are 15-25% and I'm sure the motor was worn at least a little bit. 170whp seems about right, unfortunately. Thankfully, you can up that quite a bit with just a boost controller. ;-)

There a thread on here about dyno results. You can get a feel for what's possible with a given set of mods.

Sweet. Before I use a boost controller should I re-torque my HG just in case or do you think I'm fine with a little extra boost? If I were to go down this route of having a boost controller, I would set my boost limit to 8 (just because AT only allow around 4.8 - 6.8 psi of boost).


(Link to anyone who needs this info: http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=TC&P=5)

 

[suprarx7nut]

Sweet. Before I use a boost controller should I re-torque my HG just in case or do you think I'm fine with a little extra boost? If I were to go down this route of having a boost controller, I would set my boost limit to 8 (just because AT only allow around 4.8 - 6.8 psi of boost).


(Link to anyone who needs this info: http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=TC&P=5)

I know the auto is a limitation of power at some point because it can only hold so much torque. I'm not sure where that point is.

For a retorque, unless you just did a HG job, I'm not opinionated either way. Tightening is probably worthwhile, just be sure to follow the OEM torque sequence. You'll probably want to break them all loose as little as possible (1/16th turn or less if you can) right before tightening.

Be prepared for a BHG. It's inevitable on any 7M built to factory specs. If it hasn't happened yet, it will soon.

 

[Zazzn]

My first dyno was 256 whp with hks doe pipe and 65mm cat back with a cat and k&n filter 7-10 psi on mbc