DYNO/1999 219whp 184tq @ 10.25psi
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Went to the dyno the other day was shooting for 225whp but only made 219whp, It looks like I was still making power up top do you think if the dyno guy went to say 6,700 instead of stopping at 6.300 I could have squeezed out a few more hp's ?
Garrett T-25 .48/.49 410cc injectors A/F 11.5 @ 75% injector Duty cycle Emanage Blue 219 whp @10.25 psi |
yes, you would have hit your goal. never rely on the stock tach; it's always at least 500rpm too fast at high rpms.
pretty nice torque curve. |
Damn, you are at 75% duty with 415's on a t25? Any other fuel mods?
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i was at 80% with 460s at 232rwhp.
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Thanks, thats what I was thinking next time I'll have the dyno guy push a little more RPM's, remember the stock fuel pressure on the NB's is 57-61 psi ( the injectors are 360cc from a 323 gtx but the flow rate is 410 @ 57psi stock fuel pump)
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what's the specifics on the rest of your setup.
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Originally Posted by elderc
(Post 386895)
Thanks, thats what I was thinking next time I'll have the dyno guy push a little more RPM's
just rev until you hit the limiter...that's why it's there. |
I'am all about hitting the rev limt, but for some reason the dyno guys don't want to do it?
Other mods : Koyo 37mm Rad, 2-1/2 racing beat midpipe, Borla exhaust, turbosmart MBC, saab turbo downpipe, NGK wideband, EMB, Bilstein HD's, Spec 1 clutch 18x12x3 intercooler,otherwise stock. |
That's a nice looking pull - good curves. It really is a shame he didn't stay in it. It's pretty much mandatory to tell the dyno operator to stay in it until X rpm and do not look at the car's tach, watch the computer screen with the ign pick up.
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I told him to take to at least at least 6,700 I guess he was looking at my tach instead of his computer screen.
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Originally Posted by Turbo_4
(Post 386893)
Damn, you are at 75% duty with 415's on a t25? Any other fuel mods?
I need me some mo bigga ones. |
nice numbers for 10psi
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Very nice numbers. The 99 heads flow hard up top. It's a shame you didn't rev it to the limiter, though.
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The 99 head flows better than I thought I was suprised I was still making power up top with a small T-25, I made one pass at 11.50psi and lost 18hp so for that turbo anything beyond 10-10.5psi must be in the chock zone ?
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yeah, but what rpm did he decide to lift at? :brain:
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6,084 RPM is what my data log shows. maybe he lifted to soon ? I might have picked up a few more hps. if he stayed in it longer.
He told me the pass at 11.50 was 10mph faster than 10.25psi, so does that mean at 11.50psi @ 6,084 produces more mph than 10.25@ 6,300 ? |
haha, it can't mean that. gears are gears. it could only mean you got to a certain point in less time.
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That what I'am talking about....................but I'am no "dyno guy" lol
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maybe he meant the 10psi pass topped out 10mph faster than the 11psi pass. but does 216rpm in 4th gear translate to 10mph?
edit: Just checked and that only makes a 3.4 mph difference if you have a 5 speed with 205/50/15s |
All passes were in 3rd gear (5spd) and tires are 205/45/16 if that helps, so bottom line I guess I'll have to go back to the dyno for a do-over lol.
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