Ok see what you guys think, I am trapping down the 1/4 about 104-105 with these mods 04 rs, ix turbo/hotside, 02 housing, mr header/ams turbo back/fuel pump/nisei intercooler piping/ 22 psi boost/ 300hp and 290 tq mustang dyno..

 

depends on driver

 

anyone else

 

WOW u should be trapping way higher then that!

 

elevation at the track?

 

Something seems to be wrong with your car. That's a very low trap speed for a car that dynos 300 on a Mustang Dyno. Just to give you an idea, when I dynoed 263 on a mustang dyno I was trapping 108-109.

- Elevation of track location? Could be a major issue (AR?)
- Have a time slip?
- Clutch issues?
- Boost Leaks?

 

Yes, it's very low for those mods. Could be knock caused by improper porting.

 

You should be trapping at least 110mph so, YES your trap speed is too low for those mods.

 

thnxs for the info, I figure that it was low.. elevation is 1250, NO PORTING is done yet Warratlon, and according to the dyno there was very little knock. No clutch issue, and I probly do have a boost leak, I know I should do it so dont flame, i am doing it as we speak.

 

any other suggestions?

 

post the full slip, maybe we can see where the issue is, if your 1/8th mile is strong and your back half sucks it could be the tune/boost leak/knock/etc...

 

track conditions...temps and humidity play a huge factor...as well as elevation...i ran at here lacr(palmdale) a couple weeks back and the elevation was at 3000ft and with gusty winds blowing towards us...managed to clock a 13.2 and the car was just blah ....but during the summer i was able to clock 13.3 with fewer mods(mbc/flash/licp/airfilter/clutch/2step) at fomoso raceway(bakersfield) and it was 97 degress...fomoso is located in the central valley so im assuming the elevation is closer if not little lower that sea level...

 

What dyno did you use? Vivid-Mynes ?? I have about the same #s as you on Mynes dyno. Iam trapping 108-109 91 oct. at firebird

 

That really has very little to do with what happens on the drag strip ragging the car out in gears 1-2-3-4. A stationary pull in one gear does not mimic true road/racing conditions even on a load-bearing dyno. It's best to log during the run to see what's happening.

 

i will keep you guys posted, going to go through my entire set up boost leaks and what not.. and then take it to the dyno, and check it there, and go back to the track and do some logs and get some more information..