Went to Import Showdown ready to run VP import and 31 psi, but after making a couple passes we realized something was wrong. I could only run 24 psi. We switched my perrin controller with a manual controller and the same 24 psi. I tried turning the controller both directions but it would stay at 24 psi no matter what I tried.

Oh well, on to the good news.

11.1 @ 123 mph 1.62 60'

I ran numerous 11.1 @ 123 mph with my 60' in the 1.62 - 1.66 range.


When I have time I will try and figure out what is causing the boost to be so low.

I should have a video up by the end of the week.

 

what is done to the car

 

Congrats! Can you post the entire slip?

 

good job phil, def should have won modified

 

I'll post the slip up when I get back in town on Saturday.

Anybody have an idea as to why boost won't raise up? I was using a Perrin boost controller controlling it through AEM, then we tried a Hallman manual with the same problem. The night before I was running 31 psi with no problem. Weird.

All the vacuum lines looked good. Can a Tial 44mm wastegate act up out of the blue like that? Spring stick?

 

sounds like something is up with the wastegate.

 

Yeah, when I get back in town I'm going to take it apart and check the spring.


I found one of my slips in my truck. The rest are in the glove box of the Evo. I don't think its my best run, but at least it will give you and idea.

60' ---1.622
330'---4.624
1/8----7.14
mph--96.69
1000'---9.33
1/4---11.173
mph--123.23

 

Looks like some great driving. Are you still on regular radials? If so nice 60's

 

Thanks, I'm on BFG drag radials. I kept lowering my tire pressure and my 60' kept dropping.

I started at 24 psi and was cutting 1.66's and dropped the pressure to 20 psi and cut a couple 1.62's. I didn't know if 18 psi or lower would be ok so I just left it at 20 psi.

I was spinning all the way through 1st gear and half of 2nd gear. It was awesome!

 

I think a boost leak test is in order.

If you have a coupling thathas maybe just a hairline crak or rip that is opening up at 24psi that would cause a low boost condition as well.

 

wow...very nice. represent.

 

it was funny how everyone boost was acting up sunday.

 

Yeah, that was strange. You put up a pretty good time yourself Matt. That 60' is good for as slick as the track was.