3 inch down pipe & Coverter
#1
Member
Posts like a V-Tak
Thread Starter
Join Date: Oct 2005
Location: PHILADELPHIA
Posts: 30
Likes: 0
Received 0 Likes
on
0 Posts
3 inch down pipe & Coverter
Does anyone have this installed on there car. Would like to know what they think about it. Was there any improvement or not.
#2
Re: 3 inch down pipe & Coverter
Originally Posted by Jim0170
Does anyone have this installed on there car. Would like to know what they think about it. Was there any improvement or not.
#3
Senior Member
Certified GM nut
Join Date: May 2005
Location: Wickliffe, Ohio
Posts: 2,155
Likes: 0
Received 0 Likes
on
0 Posts
If you have a non supercharged motor you will probably lose some low end power but make more up top. If your supercharged the gains would be greater. I think for the cost of a 3" dp for the Bonnevilles it much more penny wise to get ported manis or headers; but if your looking to get some type of gain with least amount of $ you can spend I guess thats the route to go.
Ed
Ed
#4
Senior Member
Posts like a Turbo
If you are supercharged, you are better off getting a DP before PEMs or headers. The stock DPs have a restriction in the neck where the DP attaches to the rear exhaust manifold. I ran PEMs with the stock DP and it caused problems (KR related).
ANyway, if you're interested, I did some concrete testing to prove that DPs work. Check the 1st and 9th posts in this thread:
http://www.bonnevilleclub.com/forum/...ht=dyno+proven
ANyway, if you're interested, I did some concrete testing to prove that DPs work. Check the 1st and 9th posts in this thread:
http://www.bonnevilleclub.com/forum/...ht=dyno+proven
#5
Senior Member
True Car Nut
Join Date: Dec 2002
Location: Sauk Centre, MN
Posts: 5,459
Likes: 0
Received 0 Likes
on
0 Posts
I have a 3" DP, 3" HF cat, and PEM'* on an otherwise stock 1995 L67 and I can say it is almost stronger than with the CAI, 2.55" SC pulley and full 3" exhaust.
It is definitely stronger than when I bought the car last summer, but then there has been a lot of maintenance done that had been neglected by the previous owner.
It is definitely stronger than when I bought the car last summer, but then there has been a lot of maintenance done that had been neglected by the previous owner.
Thread
Thread Starter
Forum
Replies
Last Post
Jim0170
Performance, Brainstorming & Tuning
1
08-02-2006 09:33 PM
cballweg
Bonneville GXP/ Northstar Powered Cars
5
01-24-2006 11:13 PM
tripscarcare95
Performance, Brainstorming & Tuning
6
02-02-2005 03:40 PM