Increase in boost between cat-backs????
12-19-01, 05:16 PM
#1
Best of both worlds
Thread Starter
Join Date: Feb 2001
Location: NJ
Posts: 1,423
Likes: 0
Received 0 Likes
on
0 Posts
Increase in boost between cat-backs????
i currently have intake, 2.5 downpipe, mid pipe, and RP catback on my T2. it also has a ported wastegate on the rebuilt turbo by the previous owner and i experience NO FUEL CUT what so ever. smooth as silk thru the rpm range so i guess he REALLY ported it. anyway, i have the Apexi N1 single catback on my 91 n/a. i wanna swap it on the T2. i ordered an FCD yesterday and am gonna put that in as soon as i get it. my question is: the RP piping is pretty small 50mm is only 2 inches...the N1 starts from 2.5 and goes to 3.4...how much of an increase in boost do you think i'd see? i don't have an aftermarket gauge, but the stock one goes about 3/4 of the way up when i'm on it. so i guess that is about 7psi. would i run too lean with the N1?
i know some people on the forum have intake, dowpipe, cats and catback and just an FCD and hit 10-11 psi. if mine is at 7 with the ported wastegate, would the N1 cause it to jump 4psi?
thanks for any info...
i know some people on the forum have intake, dowpipe, cats and catback and just an FCD and hit 10-11 psi. if mine is at 7 with the ported wastegate, would the N1 cause it to jump 4psi?
thanks for any info...
12-19-01, 05:26 PM
#2
...
Join Date: Aug 2001
Location: Tampa, FL
Posts: 7,539
Likes: 0
Received 0 Likes
on
0 Posts
I don't have a TII but it should help, I couldn't really see 4psi but maybe. Alot of people have 3" DP & MP which would also help. You wouldn't run too lean with a FCD, which you should get before you do change the exhaust. Oh ya, do you have an intake, or no? That could have something to do with it.
12-19-01, 05:40 PM
#3
Best of both worlds
Thread Starter
Join Date: Feb 2001
Location: NJ
Posts: 1,423
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by Ryde _Or_Die
I don't have a TII but it should help, I couldn't really see 4psi but maybe. Alot of people have 3" DP & MP which would also help. You wouldn't run too lean with a FCD, which you should get before you do change the exhaust. Oh ya, do you have an intake, or no? That could have something to do with it.
I don't have a TII but it should help, I couldn't really see 4psi but maybe. Alot of people have 3" DP & MP which would also help. You wouldn't run too lean with a FCD, which you should get before you do change the exhaust. Oh ya, do you have an intake, or no? That could have something to do with it.
12-19-01, 09:11 PM
#7
Best of both worlds
Thread Starter
Join Date: Feb 2001
Location: NJ
Posts: 1,423
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by Scott 89t2
I doubt it will make much difference. maybe 1psi. I would highy recommand getting a boost gauge!
I doubt it will make much difference. maybe 1psi. I would highy recommand getting a boost gauge!
i just gotta stop being a cheap *** and get one, hehe
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
t-von
3rd Generation Specific (1993-2002)
9
09-10-15 01:56 PM