DYNO NUMBERS part 2 (much better)
03-02-2010, 02:03 PM
#1
DYNO NUMBERS part 2 (much better)
Well, as promised new dyno graph:
I forgot to tell him to include the MAP graph, but can tell you that it was 7.4psi all the way through on the dyno MAP sensor and 8.2 on the Haltech. I guess it has something to do with calibration.
I let off a bit near the end, so it could have been a bit better. Either way I am very happy with the results, and the response.
Turbo is a Precision T3 6162 .81 a/r. Timing is conservative and a/f is about 11.5:1.
I should mention that there are no other mods done to the motor. OEM headers, OEM plenum (no plenum spacer), ...ect.
I forgot to tell him to include the MAP graph, but can tell you that it was 7.4psi all the way through on the dyno MAP sensor and 8.2 on the Haltech. I guess it has something to do with calibration.
I let off a bit near the end, so it could have been a bit better. Either way I am very happy with the results, and the response.
Turbo is a Precision T3 6162 .81 a/r. Timing is conservative and a/f is about 11.5:1.
I should mention that there are no other mods done to the motor. OEM headers, OEM plenum (no plenum spacer), ...ect.
Last edited by Boosted Performance; 03-02-2010 at 02:22 PM.
03-02-2010, 02:26 PM
#2
Looking good. That turbo does seem to run out of air at high rpm (or is held back by exhaust restriction), but that's SOLID, efficient stock block power. What kind of exhaust for that run? The midrange torque is really good for that boost level, which is the only reason the torque drop off looks kind of bad on the graph.
Last edited by rcdash; 03-02-2010 at 02:29 PM.
03-02-2010, 02:34 PM
#4
Looking good. That turbo does seem to run out of air at high rpm (or is held back by exhaust restriction), but that's SOLID, efficient stock block power. What kind of exhaust for that run? The midrange torque is really good for that boost level, which is the only reason the torque drop off looks kind of bad on the graph.
The exhaust was a straight (with resonator in the middle) 3" all the way to the back.
Yes you can definitely feel the torque early on, it is great, and really puts you in the seat at 4000rpm.
Last edited by Boosted Performance; 03-02-2010 at 02:36 PM.
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03-02-2010, 04:21 PM
#13
It's not the turbo that ran out of air it's the EBC not being set for the top of the RPM range. Yes, I did have to add a bit on the boost controller after 5500rpm to get a perfectly flat boost level. It is a GT35r compressor wheel, and will not run out of air at this power. Probably would have got 410whp if the boost didn't drop there a bit.
The exhaust was a straight (with resonator in the middle) 3" all the way to the back.
Yes you can definitely feel the torque early on, it is great, and really puts you in the seat at 4000rpm.
The exhaust was a straight (with resonator in the middle) 3" all the way to the back.
Yes you can definitely feel the torque early on, it is great, and really puts you in the seat at 4000rpm.
I think stock blocks folks should tune it to maintain ~ 325 wtq across the rpm band - will produce linear powerband, 400+ whp at redline - reliable wtq and sweet peak whp!
Last edited by rcdash; 03-02-2010 at 04:30 PM.
03-02-2010, 04:51 PM
#14
Registered User
I wanna see this thing with a plenum spacer, headers (maybe good maybe bad), and test pipes. I think you would be looking at a significant increase in power at the same boost levels.
03-02-2010, 08:55 PM
#17
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the tq is way different if i'm reading the two dynos correctly. On the powerlabs kit, tq is a little under 350 ft/lbs at 3000 rpms. At the same rpms, this kit only produces 225 ft/lbs and doesnt reach 350 ft/lbs till around 4500. What causes the huge difference?
03-03-2010, 04:31 AM
#19
It is easy to inflate numbers to make a setup look good. I didn't, it is what it is, and there is no need to sell false information (not saying that others are, just saying). I posted all my dynos, 4.5psi, 7.5psi and finally 8.2psi of boost. Nothing to hide here.
Also, the Powerlab is a BB turbo and does spool a bit quicker than a BB turbo. So to have a true comparison I would have to put a GT35R BB turbo on and go to the same dyno, with same boost level.
The donw pipe lenght on this setup is much shorter, so that would be my big advantage.
A dyno is a tuning tool, and I don't really care much about comparing graphs. As long as the car is tuned well, that is the most important thing. I can say that this and real world acceleration on the street is very close, the boost graph in both cases are identical. The dyno is brand new, and still well calibrated.
Last edited by Boosted Performance; 03-03-2010 at 04:51 AM.
