Power Graph Thread

[wacomuk]

179.0 bhp 1st run. with some fannying about 2nd run 199.8bhp

175.8 lb 1st run 205.1 2nd run


this was my old silvia (RIP)

CAR MODS:
standard t2 running 1bar
1 bar actuator
Volvo 740 IC and water rad front mounted
k&n air filter
custom made SS exhaust (1box)
walbro fuel pump
timing set to 15DBTC (on dyno)
plug gaps made smaller, got an extra 5bhp
i had a timing kick back system @12 psi it took the timing to 10DBTC the guy at the dyno told me to get rid of it, so I did the next day
after the run i set my timing to 17DBTC it gave more low down power, i never got any detonation

[s13eater]

where you had that, folded up in ya back pocket,lol.

[rpettafor]

i ran mine on saturday, i got 185.9bhp at the flywheel and 185 ft/lb torque, but is running lean at the top, so i am thinking that i need to get some bigger injectors and/or a better fuel pump - ill get the graphs up later, but for now heres an action shot -

[30psi]

Whats the spec?

[rpettafor]

Originally Posted by 30psi

Whats the spec?

its got a t3 turbo, a cossie intercooler, external wastegate, stainless steel exhaust, bov, greddy profec b spec 2 and cone filter.

[sideways danny]

as I said to you at the time, I think your injectors are maxed and you need 370s. Where are you based?

Originally Posted by rpettafor

i ran mine on saturday, i got 185.9bhp at the flywheel and 185 ft/lb torque, but is running lean at the top, so i am thinking that i need to get some bigger injectors and/or a better fuel pump - ill get the graphs up later, but for now heres an action shot -

[rpettafor]

Originally Posted by sideways danny

as I said to you at the time, I think your injectors are maxed and you need 370s. Where are you based?

near reading

[adzs12]

Injectors maxed at 185bhp you what?

[sideways danny]

Originally Posted by adzs12

Injectors maxed at 185bhp you what?

top end of the standard fuel map runs the standard injectors at 136%. You'd be surprised realistically on a genuine dyno and not one that's been tweaked for ego massaging, how much less some equipment is good for than you'd think. the fuel really leaned off and was around 14:1 (IIRC) at the top on Robs run. My car on the same dyno was not performing well because I couldn't get the RB20 AFM to work (think I have a wiring issue) so my std AFM was maxed and held me back to 301.7bhp. I think a simple re-scaled for bigger injectors chip would see about 200-210 on robs car, the fueling strangled it

[s13eater]

thats down a bit, we had it at 197bhp on a dyno dtnamics set up.then again, thats the point i always make, you really can't compare bhp, unless your on the same rollers and more or less the same time and day.