Car feels down on power... help
03-01-2009, 09:23 AM
#1
9 Second Club
Thread Starter
iTrader: (7)
Join Date: Feb 2005
Posts: 866
Likes: 0
Received 0 Likes
on
0 Posts
Car feels down on power... help Well I went to the track yesterday and even though the car was running 9.0s and trapping 155mph. It felt like a slug from 6300rpms on. I dunno if I am getting valve float, don't have enough cam, am lifting the heads or what. The car looks like it is picking up RPM pretty quick but something isn't right. I am running the same ETs on 18psi that I was running on 14psi.
I dunno I am more than frustrated at this point. 3 outings going 9.0s and no matter what we change the car isn't going any faster. I am usually pretty easy going but this is beginning to tear away at me. The car is parked in my garage and not coming out for a week or so.
Anyways if you have any suggestions let me know.
I'm getting an AMS 1000 this week to control the boost a bit better also.
I dunno I am more than frustrated at this point. 3 outings going 9.0s and no matter what we change the car isn't going any faster. I am usually pretty easy going but this is beginning to tear away at me. The car is parked in my garage and not coming out for a week or so.
Anyways if you have any suggestions let me know.
I'm getting an AMS 1000 this week to control the boost a bit better also.
03-01-2009, 03:01 PM
#4
9 Second Club
Thread Starter
iTrader: (7)
Join Date: Feb 2005
Posts: 866
Likes: 0
Received 0 Likes
on
0 Posts
About 50 passes. I just looked at my logs from BS3 and for some odd reason i am between 6600 and 6900 RPMs for 3 seconds in 3rd gear. This is where the car feels like it is making no power! The rest of the RPM/gears feel great. It's just when I shift to 3rd the car will make no power. We are going to check the springs this week. It was fine the last time it was on the dyno, but I am thinking this is a new issue that just started.
03-01-2009, 03:04 PM
#5
How well is your altenator doing. If it is not charging to it's fullist than you may be losing voltage, and it will cause a lean spot? Just a thought. I had this problem with my old setup and had to get a new altenator and battery and then no more problems.
03-01-2009, 03:25 PM
#7
On The Tree
Join Date: Nov 2004
Posts: 199
Likes: 0
Received 0 Likes
on
0 Posts
i would make sure your not dropping fuel pressure. what kind of exhaust do u have going after the turbo??? ignition holding up??
i would not get hung up on this. this sounds normal.
I just looked at my logs from BS3 and for some odd reason i am between 6600 and 6900 RPMs for 3 seconds in 3rd gear.
Trending Topics
03-01-2009, 03:47 PM
#9
Either the fuel pressure is falling, or you have some valve float problems. Those turbos on that motor are good for another 500-700rwhp more then what those mph #'s are indicating.
