My dyno #'s :)
- Thread starter kwiktsi
- Start date
kwiktsi said:
Butt dyno.. I have no electronics in the car at all. I have my FP reduction kit to drop the pressure since the car is way to rich (over 10:1 AF stock- I am 13:1 on 116 now), my prototype FCD to elimintate fuel cut, colder plugs and just basic stuff (experimenting with plug gaps, heat ranges, etc.).. I am waiting to see how much boost I can get away with without detonating once the 116 is gone and I have straight pump- it used to be 11 psi on a cool night with the stock PLATINUM (who puts platinum in a turbo car anyway- MAZDA???) plugs. I am hoping for 13-15 with the colder plugs- I will know in the next few days..
I think you're going a bit risky running at 13:1 AFR at full load. Most turbo cars absolute worst case run 12.5:1, with the kind of boost your pushing out of that little T25 I'd be shooting for 12:1 or richer...
LinuxRacr said:Time to link this to the Subaru guys....to mess with their minds..
Here it is: http://forums.nasioc.com/forums/showthread.php?s=&postid=4156782#post4156782
(laugh)
Big Mike said:
It was a bit leaner than wanted, but that was on 116 (I always tune a bit leaner on race fuel anyway) and at a higher psi than the car normally sees. I want to hook up a wideband to see what it does daily on "street tune" and pump gas, I'm sure it is at least 12:1- my o2 voltages are higher on lower boost and pump. I have only had o2 voltages and feel to go by until the dyno. I have to get around to putting my EGT in it too- that will help a lot on the street for tuning..
Joe
PS- That was 19 psi max and dropping to about 14 by redline. The turbo probably isn't doing much good over 16 psi though, I just wanted to try to get some comparisons.
scapamouche
Member
Great numbers, but would it be possible for you to do a more real world set as well?
Most of us are NOT going to go for the big boost, but more of the 10psi... Do you have any numbers squirreled away for THAT kind of boost? That might help your sales even more...
Most of us are NOT going to go for the big boost, but more of the 10psi... Do you have any numbers squirreled away for THAT kind of boost? That might help your sales even more...
scapamouche said:
I am going to try to set up another day where we have more time for more pulls on pump gas. I already had the 116 in my tank, so I just went for the big #'s. I will do some more pulls on pump gas down the road, just don't know if I am going to drop the boost as low as 10 psi for the runs
. I am tuning my car and going backwards would set me back a bit . Actually, xsivspd did around a 10 psi pull with exhaust and did mid-220's (from memory) and turbomattyp did 217whp@9 psi before his motor let loose (unrelated to the 9 psi).. Stock they are dynoing in the mid 130's. There's your practical #'s ..Joe
Big Mike said:
Yeah race fuel is much more forgiving. The DSM guys do love to beat the crap out of their T25s so I'm sure it will live for a while... Just tryin to look out for other members of the Mazda family
Actually, Robert from Forced Performance said the GT25R on the MSP is a bit better flowing than the T25 on the mitsu. Don't know for sure, but I haven't seen many T-25 DSM's hit the 100 mph mark with minor mods, so it may be true- I dunno (dunno) .
Joe
Big Mike said:
Robert says GT25R and that there are several variations- like saying you have a T3- there are a ton of different T3 configurations. I have read "Garret T25 ball bearing turbo" though, so I am torn. He wanted the # to run it, but the Garret plate has a Mazda specefic # on it
. I can send him mine to measure up to see what wheels and such, but I can't be without my car right now. I am assuming by my #'s (hp and track) that it has to be a step above a standard T25, so I believe Robert, but I just don't know 100%.Joe
A
AGR
EVOs??!! Any EVOs or STis in our midst??
11 psi, 3" exhaust, Joe P. FPR kit, stock air box- 14.2@100
18 psi- 263.5 whp, 244 ft-lbs
Unreal Joe! I gotta tell ya; I'm sitting back just observing (and muttering to myself)
If it all holds together; I might like to crank up to 12psi.... But hell; I'm really liking 9+psi. Maybe I'm just more easily amused. (rofl)
11 psi, 3" exhaust, Joe P. FPR kit, stock air box- 14.2@100
18 psi- 263.5 whp, 244 ft-lbs
Unreal Joe! I gotta tell ya; I'm sitting back just observing (and muttering to myself)
If it all holds together; I might like to crank up to 12psi.... But hell; I'm really liking 9+psi. Maybe I'm just more easily amused. (rofl)
