Am I under injected?
 

Most of you know what I'm running, but for those who don't, here's a quick and dirty breakdown:

331 stroker
10:1 compression
Andrerson N-41 cam
TFS TW heads with mild porting
TFS Street Heat Intake
75 mm TB
75 mm Pro-M
24# injectors w/155lph pump

I'm curious as to what you guys think about the 24# injectors. Are they holding me back? Should I step up to a 30# injector and 255 or 190 lph pump?

See my sig for ET. Race weight is around 3100 lbs.

Thanks,
E

The injectors are fine. IMO and not in any way holding you back.

I would however upgradeb the fuel pump to a 190lph.

The only thing I see holding you back is your 60ft.

Get the 60ft down to a 1.70 and you would come damn close to an 11 second pass.

Theres 1 way to tell for sure. Get to a dyno with a wide-band, or better yet, pick up a wide band from AFM and you can see what the A/F is while you are going down the track.

Andy

I called Gregg Banish (turbolx) of Livernois / Detroit Speedworks a couple days ago to arrange for a complete dyno tune w/chip burn this April. It will be interesting to see what the wideband shows and to see how much power I'm leaving on the table.

I think I need slicks...this drag radial thing sucks for 60' times. :D

E

Re: Am I under injected?
 

The short answer is no. I put down 300RWHP on 19#rs. A buddy went a 9.98 with a 408 and some NOS and only had 24#'rs in:eek:


Mabey a bigger pump though....

i agree with dark. just get a 190lph pump and definently get a dyno tune with a wide band.