What a pain in the A$$! I sincerely hope the performance gains are worth the effort.

For those who have not done this upgrade yet, have plenty of patience, at least two days to work on it and some nifty tools. I had to use a sawzall to cut off the leafs on the a-arm mounting brackets to clear the headers.

For those of you who have done this, what did you do about the brake line near the passenger side header? It is like 1/8" away from the header. Mine are Jet-Hot coated so I do not know if it will be an issue.

Comments welcome.

------------------
1991 Formula, 406, miniram. Best run to date (9/30/01) 60' 1.63, ET 12.28, MPH 110.48

 

I bent my brake lines just enough to get them away from the headers about an inch or so. The whole install was a pita,just like you said.I didn't have to cut anything though.

------------------
'91 RS, 375hp 350
New paint-solid black
ROH Snyper wheels-17x9 wrapped in 275/40/17
ASCD SS hood, High-rise Z-28 spoiler,shaved handles/antenna,
Hooker super comp headers,dual 3" exhaust,two 1-chamber Flomasters,machined hi-perf GM heads,Carter 750 carb,Power Plus 360* high rise aluminum intake,Edelbrock Elite valve covers and open air cleaner,Crane 292 cam,Eibach Sportline springs,KYB struts/shocks,completely rebuilt steering linkage,36/24mm sway bars,12.7 steering box,wonderbar,145 gauge cluster,Auto meter gauges,dual guage A-piller pods,180* thermostat.
75-125 shot NOS system planned.

President-Austin 3rd Gen F-body c.c. - message board at
www.hpsmotorsports.net
See my car and others at www.ride4life.net

 

What y-pipe did you use? I am planning on changing to the super comp's in the spring. Thanks.

 

I am using the Y-pipe from Mufflex. I figured if there is any fitting problems, they are only about 45 minutes away. I have their 4" cat back system and am very pleased with it.

------------------
1991 Formula, 406, miniram. Best run to date (9/30/01) 60' 1.63, ET 12.28, MPH 110.48

 

did you have any clearance problems with the factory starter?

 

are the super comps the intermeditate length heders with 1-5/8 primaries and 3" collectors? Or are they 1-3/4? what size is the collector? How much $.

------------------
-Tas
'89 Formula WS-6

305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz



Got Beach?

 

I don't have a facotry starter, I have the CVR mini starter and have zero fitting problems with it. I have heard mixed reviews as to whether or not the stock starter will fit/suffer heat soak.

The headers are 1 3/4" primary, full length headers with a 3" collector.

Will post track results soon to end the all time question of how much better they are than SLP 1 3/4" with 3" random tech cat.

------------------
1991 Formula, 406, miniram. Best run to date (9/30/01) 60' 1.63, ET 12.28, MPH 110.48

 

Oh almost forgot, with Jet Hot coating they around 625 shipped to your door.

 

I had to lift my engine a couple of inches to clear those brackets your talking about.
With 2 very good mechanics and I with the car on a lift it took 3 1/2 hours after we finally got the old manifolds off.

From what I hear it seems to be a little easier to install headers on the earlier 3rd gens

 

How did you route the starter wires? I was thinking about running them under the pan where it crosses the crossmember and then up again.

I have also heard that the eariler 3rd gens had a little more clearance. I wasn not hard to cut the ears though with a sawzall.

------------------
1991 Formula, 406, miniram. Best run to date (9/30/01) 60' 1.63, ET 12.28, MPH 110.48

 

hey fast bird or anyone do u think it is abit more easier to put them on my 82 z28 and hey fastbird u could have saved almost 200 bucks on the headers becuz i was lookin in my brothers P.A.W. catolog and i found them 419 plus change and im pretty sure that they r the jet hot coated ones. so like i dont know if u wanted to know but maybe others did. oh well. oh yeah fastbird when u goin to the perkins car show again id like to see the headers. aight later

------------------
mods to car
new ignition system, edelbrock intake,600 cfm q-jet,th-350 tranny, used black interior, grant stering wheel, accel plugs and wires, hookercat back, b&m shifter, emmission delete package, computer delet package and soon ac delete and in future-- hooker sump comp headers, posi rear, drag slicks and all new rims probably weld rims, line lock, 8 point roll cage, strut tower brace, drag shocks, sfc, new edelbroc 600 carb, nitrous and a weiand supercharger or a 350 or 400 block

 

oh hey i just check the catolog and its 419 for the headers but they have a little number 1 by it and it says at the bottem of the page call for price and whatnot. man that $ux. oh well

------------------
mods to car
new ignition system, edelbrock intake,600 cfm q-jet,th-350 tranny, used black interior, grant stering wheel, accel plugs and wires, hookercat back, b&m shifter, emmission delete package, computer delet package and soon ac delete and in future-- hooker sump comp headers, posi rear, drag slicks and all new rims probably weld rims, line lock, 8 point roll cage, strut tower brace, drag shocks, sfc, new edelbroc 600 carb, nitrous and a weiand supercharger or a 350 or 400 block

 

They headers were 625 through Jet Hot direct. HOWEVER....i did not pay anything for them due to a shipping error on their part but I will not get into that.

Are you guys still meeting at Perkins?

I think it would be easier to put them into an 82 car because of the clearance in the engine bay that I have been hearing about lately.

Anyone comment on the starter wire routing?

------------------
1991 Formula, 406, miniram. Best run to date (9/30/01) 60' 1.63, ET 12.28, MPH 110.48

 

My starter wires are close. I zip tied them back out of the way.

I got my headers in and out wihtout tilting the engine. You have to lift it way up but its possible.

I didnt do anything about the brake lines. Ive had no problems with braking.

I didnt cut off any ears either.

Good luck!

------------------
-86 IROC

-=ICON Motorsports=-

 

hey fastbird about the shows naw last night was the last night. i know it suxs. but i guess just wait till next summer.

------------------
mods to car
new ignition system, edelbrock intake,600 cfm q-jet,th-350 tranny, used black interior, grant stering wheel, accel plugs and wires, hookercat back, b&m shifter, emmission delete package, computer delet package and soon ac delete and in future-- hooker sump comp headers, posi rear, drag slicks and all new rims probably weld rims, line lock, 8 point roll cage, strut tower brace, drag shocks, sfc, new edelbroc 600 carb, nitrous and a weiand supercharger or a 350 or 400 block

 

Does the Y-pipe from Mufflex go to the factory catalytic converter location so you can bolt on any catback kit? If not, how does the rest of your guys' exhaust systems work? Anybody have pictures of their Y-pipe setups?

------------------
1987 GTA L98 MD8
355, TFS Heads, LT4 Hot Cam
My GTA

The Minnesota F-body Club

 

ttt

 

There are pics on Mufflex's website. Here are the pics ...





I also have a pic of my mufflex y-pipe (just the Y-pipe laying on the ground). I bought it used from a guy on CZ28.com and it has a 4"-to-3" adapter that will allow me to mate it to my 3" flowmaster catback. This picture is huge and it will take awhile to download on a 50K connection. The pic is here ...
http://www.xecu.net/timsiford/DCP_0824.JPG

Tim

------------------
TRAXION's 1990 IROC-Z
Best Time = 12.244 @ 112.51mph (1.778 60' / 7.819@88.32mph in the 1/8)
All Natural. No Force. No Drugs. Stock Bottom End. Stock Body Panels.
Gunning for NA 11's with bigger cam, bigger stall, and bigger exhaust.
-=ICON Motorsports=-
Moderator: PROM board at thirdgen.org

 

Hmmmm.... I also have a Flowmaster 3" catback..... it has a three piece intermediate pipe...... I think that it might just work with that Y-pipe....... Does your catback have the three piece intermediate pipe? (mine has one piece welded to the muffler and two pieces that go up to the factory cat location.....) I think that all I would need is a reducer to go down to 3" at the end of the Y-pipe and it would go right into the rest of the catback....... hmmmmm.......

Thanks,
Matt

------------------
1987 GTA L98 MD8
355, TFS Heads, LT4 Hot Cam
My GTA

The Minnesota F-body Club

[This message has been edited by Matt87GTA (edited October 19, 2001).]