Please Analyze my dyno.
Specs are B18c5 , stock bore size, crower rods ,Je Pistons, 9-1cr, GE sleeves, Full race Head, Ferrra valves etc. Holley throttle body, Weldon Fuel Pump,
Haltech, T70 Turbonetics, Custom Equal lenght mani, race gate, water to air Spearco, STR Intake, 900cc injectors,Greddy Profec A and a set of other **** I cant remember.
First Time I dynoed her today, just tuned boost, timing, air/fuel. Last 2 runs I made , first one I had the max boost timing curve set at 9 degrees at 33psi and made 519whp and 357 ft lb torque. Second run I increased the timing to 15 degrees at 33psi in which I made 535 whp and 372 torque max. I also dynod at 23 psi and made 499whp but only 313 ft torque. The torque seems to make more of a difference when upping the boost. We actually lost traction on the dyno couple of runs in 4th gear too. Races are tomorrow and the track here kinda sucks so I wondering if traction is gonna be a problem. I plan to launch at 23psi then hit 33psi in 3rd or 4th not sure yet. I also havent yet touched the cam gears not sure where to start.

Anyway can you techies or top dogs anaylze my run and give me some opinions




Modified by saso at 3:05 AM 7/26/2003

 

well damn that power curve is like a steeeep *** hill, i mean your going from 200HP to 500HP all in 1000RPMs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skribblah &raquo;</TD></TR><TR><TD CLASS="quote">well damn that power curve is like a steeeep *** hill, i mean your going from 200HP to 500HP all in 1000RPMs. </TD></TR></TABLE>


sorry no help here... but dayam that must be a pretty good "shove" into your seat

 

bump

 

something definitely seems wrong..at 23psi you make 499whp, then 10 more psi (33) you only made an additional 35whp?..thats really really weak for a big turbo like that...it doesnt like look like it was spinning on the 33psi run from the graph so i dunno..

ive got a friend with a t61 on a gsr motor that is sleeved and bored( around 84mm i think) but made like 50whp more at around the same boost or lower.

 

u wouldnt happen to be going to new hampshire? i know theres a track even there tomorrow...ill keep my fingers crossed that thats what your talkin about

 

i definitely agree. you should be making more power. as someone mentioned a 10 psi increase and you gain only 30+whp. something is very wrong there. i went from 477whp @ 23psi to 500 whp @ 25psi.

 

not talking **** or anything but your numbers seem pretty low for your setup.....good luck with everything...

 

seems like you could run a bit more timing to get the hp up on the high boost.. 15 seems very conservative. I dont know what octane youre running but with 9.2:1 and 116 you should be able to run around 20*.. The main thing is to talk to your tuner and see what (s)he has to say about it..

 

Bump thiis up I need some more input. I think I do need more ignirion at max boost. Wondering what is a safe level though.

 

What cams? You said you messed with A/F, boost and timing but did you mess with the cam gears at all? Say you mes with the cam gears at low boost and make good power they may not be optimal at higher boost levels, may be too much overlap, try messing with the cam gears and also timing next time. The #s seem alittle low with the 33psi but the 23psi sounds about on the money. I made 500whp and 333 ft-lb torque with my B16A with a T3/60-1 .82 A/R turbine stage 5 wheel so you should be well above that on the 33psi. Good luck!

Could be too much overlap or may not be staying open long enough for the intake

 

arent those injectors kinda small?

 

injectors are running 68 duty cycle so fine for now.