[spipedong]

I went up to torque freaks to establish a baseline for the car with current mods. Here's what I got:

Year, Make, Model:1988 Toyota Supra
Gear:I think they were 4th gear pulls.
Transmission:5 Speed
All mods: Cone Filter, Boost @ 10psi, defcon hardpipes, HKS Downpipe (2.5-3"), 3" catback, Flowmaster 40 series.

Peak TQ & HP: Out of the three runs, the top of each was 236RWHP and 265RWTQ. The runs themselves were as follows:
228.38RWHP, 265.53RWTQ
234.12RWHP, 255.89RWTQ
236.52RWHP, 256.86RWTQ
For an average output of: 233RWHP and 259RWTQ

This was a dynojet 248X in-ground Dynamometer located at Torque Freaks in Portland, OR.

Pics:
Run 1
Run 2
Run 3

The car was running PIG F'ING RICH, as shown on the A/F graph. It only goes down to 10.0:1 and I had it pegged down almost the entire time. I suspect there's a great deal of power to be unlocked with an AFC or E-Manage and some tuning.

All in all, I sort of surprised myself but not a whole lot I was expecting about 220RWHP and it was pretty close.

 

[Jaguar]

Decent numbers for the mods. Yeah some tuning will make a big difference. E-Manage or MAP-ECU would help out a lot like you said. What are your plans for the future?

 

[spipedong]

Immediate plans are to fix the transmission that hates going into gears.

Near future plan is DDP and E-Manage.

Further future is 550's, Lex AFM, and a 57 trim upgrade.

Somewhere in there is cosmetics, since my interior's trashed, the paint's peeling, and I want 89+ wing and tails.

I suppose I should mention that this engine has approximately 3000 miles since I rebuilt it, and it looks like it's doing well.

 

[hoser813]

yeah, you really need to get an afc or something and pull some fuel out of that.

 

[drjonez]

#s seem a bit low to me.....should be closer to 250ish.....

 

[spipedong]

Even with the stock cat, and running that rich?

 

[supraguru05]

that cats killing you but still seem low have you checked your compression

 

[spipedong]

compression is excellent, the engine's only at 3000 miles.

 

[dbsupra]

the hp numbers arent too far from what id expect but the torque id expect a lot closer to 300rw. most of the torque is down low and wont be as affected by a/f as the hp will (on the stock ct).
i also noticed the smoothing was at 5, id bet youd have higher peak numbers if you changed the smoothing.

overall any dyno i dont find new problems or any new ones created i count as a successful dyno

get some fuel trim mods and get it tuned, lots of power still untapped there.

dave

 

[SuprAng]

just run more boost, itll help your rich problem lol...

 

[Guest]

that HKS DP is killing you.

i dynoed with basically the same mods, but at 7.5psi, and with a BIC non-ddp dp, and i made 245rwhp and 251rwtq.

with a stock cat also

 

[Ckanderson]

and why the HELL would you run a flowmaster? they SUCK!

 

[60-1 Teg]

no his a/f is killing him, on one graph as soon boost hits the a/f goes off the charts and dosnt come back. a/f in the 9's thats wayyyyyyyyyy to rich. i bet you go thru gas like crazy when boostin

p.s. get rid of the cat!

 

[toyota_supra_1988]

^^ his a/f is hurtin him, id get rid of the stock cat, hk$ dp, and get a safc II or emanage. or boost would help

 

[MattOneDime]

and why the HELL would you run a flowmaster? they SUCK!

he aint trippen off the flows, whoo whoo

 

[spipedong]

and why the HELL would you run a flowmaster? they SUCK!

Umm:

A: It's 3" in/out.
B: It was cheap at the time.
C: It's not very loud.
D: It doesn't attract unwanted attention visually either.

 

[spipedong]

Had Horsepower Freaks been open on Saturday I would have dropped some cash on a testpipe and possibly an SAFC on the spot.

I also belive the HKS DP and A/F Ratio are killing the power. The HKS came with the car, and I guess the A/F did too.

Granted, it put down more power than I expected, but apparently less than I should have expected.

 

[simann]

great numbers for so little mods man!

I seem to think my set up shoudl run around 230whp and around 280ish tq.....

tuning your a/f shouls show a good 10-20hp gain in a usual sense....of what i have seen and heard ( for a stock turbo set up).

good luck in the future man! The numbers only go up from here

-Jonathan

 

[spipedong]

Also, I'm being told that the HP/TQ don't cross where they should. WTF does that mean?

 

[flubyux2]

those are decent number, posibly on the low side of "Typical"

the AFR curves are very typical of the conservative toyota tuning. you could pull out about 12% fuel to get that aroudn 12:1

decent numbers for the mods. get rid of the elbow and a different DP, and a little more boost, youll be knocking on 300rwhp