Hesitation when accelerating hard
Melting Slicks
Joined: Sep 2006
Posts: 2,736
Likes: 7
From: Redding CA
Mooney,
Your engine is WAY farther modified than most of ours. Did you talk to the guys at A&A and see what they have to say?
Sorry I didn't return your call the other evening..I've been really sick this last week or so and haven't had any energy to be out and about.
The OPS car is fairly heavily modified, supercharged LS1 but it was just recently done so the guys at A and A should be able to tell you whats up.
Take care,
Donnie
Your engine is WAY farther modified than most of ours. Did you talk to the guys at A&A and see what they have to say?
Sorry I didn't return your call the other evening..I've been really sick this last week or so and haven't had any energy to be out and about.
The OPS car is fairly heavily modified, supercharged LS1 but it was just recently done so the guys at A and A should be able to tell you whats up.
Take care,
Donnie
Thread Starter
Pro
Joined: Jan 2010
Posts: 661
Likes: 2
From: Ca.
The hesitation was there before Andy installed the s/c. I have a scheduled appointment with Nick at New Tech in Hayward California to check the tune, because I am getting check engine light of PO172HC and PO175HC which is left and right bank to rich at low rpms just driving without being in the s/c. The hesitation when accelerating hard was there before the s/c installation.
Sorry to hear that you have been sick Donnie.
I would take it back to Andy, but they are 550 miles south of us, and New Tech is about 220 miles south. Both Andy from A&A and Nick from New Tech are very nice people. They are both eager to fix any problems that I have.
Andy suggested going to Nick because of the distance between us, but like I said, he would be very happy to fix the problem if I wanted to travel to him. Both of them said that they would have to check the car out to find out why it is hesitating. The to rich problem is a easy fix with tuning.
I was hoping that someone else had this problem before, so they could give me a heads up on why.
Below is the dyno run, and you can see the dip at 4000 rpm. I was hoping that the new wires and s/c and tune would fix the dip, but it did not, as you can see by the dyno sheet.
Thanks
http://s283.photobucket.com/albums/k...nt=dynorun.jpg
Sorry to hear that you have been sick Donnie.
I would take it back to Andy, but they are 550 miles south of us, and New Tech is about 220 miles south. Both Andy from A&A and Nick from New Tech are very nice people. They are both eager to fix any problems that I have.
Andy suggested going to Nick because of the distance between us, but like I said, he would be very happy to fix the problem if I wanted to travel to him. Both of them said that they would have to check the car out to find out why it is hesitating. The to rich problem is a easy fix with tuning.
I was hoping that someone else had this problem before, so they could give me a heads up on why.
Below is the dyno run, and you can see the dip at 4000 rpm. I was hoping that the new wires and s/c and tune would fix the dip, but it did not, as you can see by the dyno sheet.
Thanks
http://s283.photobucket.com/albums/k...nt=dynorun.jpg
Last edited by mooney201; Apr 30, 2011 at 10:27 AM.
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