quadtech

Had a chance to take my turbo LS-vtec 4dr out to the dyno on saturday and got some baseline numbers.

Motor is a LS-vtec with 90 B18a bottom end with mahle 9.1:1 forged pistons, scat rods, etc... head is a 99 B16a2 head, left it stock for now, i have a ferrea valvetrain and crane cams new turbo vtec cams lined up, just need some cash
management consisits of a PM6 running turbo edit and AEM FPR set to 37psi.

dyno run was done on a dyno dynamics with no correction factor, unlike the dynojets out there.

first pull: 120.7whp with major lean out in the top end, vtec activation at 4900 rpm.
second pull: 140.9whp, upped the fuel pressure to 52psi, moved vtec up the 5200rpm
third pull: 135.6whp, upped fuel pressure to 60psi, left vtec at 5200rpm, definate loss in power.

boost was at 3psi, with 440dsm injectors.

the tuning was primarily just a basemap i created with xenocron's basemapper program. We went back and played with the values for about an hour, but i didnt have time to get it back on the dyno. I will be going back this weekend now that i have 1000km on the motor, i will put the 10psi spring back in and give her ----.

Overall goal is 15psi, but my 440's max out at 11psi, so itll be on to 600cc injectors and a new fuel pump before it gets the 1bar spring.

ill post up the dyno sheet when i grab my willem burner and spares chips from the dyno shop.

clemsonteg

i dont know too much but i would think the ls/vtec would have more then that na much less running 3psi, someone else can confirm, just my 2 cents of course

Racintweek

my stock N/A LS made numbers like those

Mindless

I thought the same thing. Good luck with the setup though. Keep us updated.

Just out of curiousity how much do you have in just the LS/VTEC setup less the turbo stuff?

twisted civic

my stock b16a puts out better numbers, basemap or not, those seem pretty low for an lsvtec.

bumblezc

Why are you running such high Fuel Pressure. At what point are you hitting 60psi? I hope not at idle!

stillnoturbo

Wow that seems super low. How long has this engine been built and running for or are you still breaking it in? That just seem really low for a stock LSVTEC.

spongerlbc

Does this account for the low dyno numbers??

projekteg

dude, those numbers are hideous! 440's max out just a hair over 300whp, so you have a lot of work to do before you even think about maxing those injectors out. i'd be worried about a lot more things other than getting new injectors :P what kind of goal is '15 psi' you just want to be able to say "hey, i'm running 15 psi!" or would your rather say "hey, i put down 400whp" ?. what turbo was this with?

quadtech

believe me, im not too happyy with the results. Im diagnosing the problems as i can find them.

projecteg: its about making power and being able to say i pushing 15psi. 15psi is useless if im not putting the power to the ground the way i want it.
turbo im using is a T3 48 trim turbine, 60trim compressor

im into the complete setup foir about 1500us, if that. It helps to work at a speed shop.

Ill keep everyone updated.


I found an exhaust leak at the manifold flange, gonna fix that and see how see runs.