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View Full Version : Ran my 2000 Z28 A4 at the track today

tx77015ls1
04-23-2006, 10:32 PM
I went to the track today (Houston Race Way Park) This is with my new cut out open.

My times and speeds were

13.302@105.70 2.078 60ft
13.389@106.35 2.177 "
13.431@105.75 2.177 "
13.465@105.16 2.145 "
13.468@104.85 2.117 "

So my time did not change but I got 2 more miles per hour from the cut out

My old time was with about 60 degree and it was about 78-80 degrees today

Bottom line, cut out = 2 MPH
FloridaPowerHitter
04-26-2006, 02:53 AM
hey man,can you school me on this..iam a Noob..
"cut out" means to cut out that piece of metel on front of the air ram on the hood?
tx77015ls1
04-26-2006, 09:11 AM
Its called a exhaust cut out. It goes between the cats and muffler. It has a removeable plate that will let the exhaust gases to by pass the muffler. You may loose some low end torque but from my MPH gain in the 1/4 mile (2MPH) It its a solid 15-20 HP gain
FloridaPowerHitter
04-26-2006, 11:46 AM
oh i see...thanks...
Mach1Mustang
04-26-2006, 11:58 PM
pull a better 60' and you will be in business!
ss~zoso~ss
04-27-2006, 05:49 AM
it seems the first time is always the fastest
jgriff
04-27-2006, 08:08 PM
Great times.
Zboner
04-27-2006, 08:25 PM
nice mph
Green Monkey
05-12-2006, 10:31 PM
I actually had my car dynoed with and without the cutout. You will be pleased to know it added 11 rwhp my Z28. It also increased the rwtq, but it was minor. I would have to find the printout to let you know what that number was.
mrr23
05-15-2006, 07:36 PM
typical results of a cutout. et doesn't change. lose 60ft to gain mph. mine did the same thing. this was one 200 n2o also. gained 11/13 on the dyno after 3000 rpms. lost .1 60ft, gained 1 mph, gained .02 et.

don't forget to post in the et listing so i can add you to the list.
bene
05-15-2006, 08:13 PM
I went to the track today (Houston Race Way Park) This is with my new cut out open.

My times and speeds were

13.302@105.70 2.078 60ft
13.389@106.35 2.177 "
13.431@105.75 2.177 "
13.465@105.16 2.145 "
13.468@104.85 2.117 "

So my time did not change but I got 2 more miles per hour from the cut out

My old time was with about 60 degree and it was about 78-80 degrees today

Bottom line, cut out = 2 MPH

Is this with stock 3.23s or 2.73s?
tx77015ls1
05-15-2006, 08:56 PM
im not sure I think 323's