This pertains to mainly the TES 6872 headers and Southside bars. Did you run into interference when you tried to put the Y pipe into position? I did and since I'm not happy with the mod(read hack)job the local muffler shop did I've since ordered a new Y from Edelbrock. I will then take it to a performance shop in nearby Charlotte to do the work. Anyone else have this problem and what did you do to solve it? I'm looking into notching the passenger side connector to provide clearance. Anyone have some solutions?


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Mongoose-NCTGA-1990 Pontiac Formula/305 TBI-700R4 with Edelbrock Performer TBI intake,TES headers,and STB,K&N,MSD-6AL,Holley laser shot coil,Accel Extreme 9000 wires,Jet Stage 2 chip,TCI shift kit with corvette servo,Richmond 3.73 gear with Auburn 3 series posi,3" high flow cat with SLP 3" cat back,Eibach sportline springs,Energy Suspension poly throughout,Lakewood LCA and adjustable panhard bar package,SSM subframe connectors,IROC wonder bar,Tokico 5 way adjustable struts and shocks,Autometer electric fuel pressure gauge,Alpine,JL Audio,MB Quart,92 GTA taillights,92 GTA aero wing and hatch,Steve Spohn LCA relocater kit,MacEwen White face gauges,84 T/A cold air induction air cleaner.

 

Super Chevy did this and had to make modifications too. For one, they said the passenger side subframe mounts under the firewall. They also had to modify the exhaust by cutting out a small section between the cat and Y-pipe (guess they didn't have the TES) and fab a new pipe. This was w/ Hotchkis . HTH.

Matt
87 Firebird Formula 350

 

Mongoose,

Where are the quality SpeedShops in Charlotte that do, street car work. The only one I know of does Nascar and is just too high for my budget.

Thanks

 

I ahve no problems

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86Z28, GM 350, Jet perf Q-jet & chip Dual snorkel air cleaner, Edelbrock performer intake, Edelbrock headers, Edelbrock cat-back, Off road pipe, MSD 6AL, Accel Super Coil, Moroso Blue max wires, Rapid fire plugs, Jet fan switch, World class t-5, Hurst Short Throw Shifter, Ram Flywheel, Center force dual friction clutch,Aluminum drive shaft, BW disc rear 3.45's & a posi, PBR calipers, Earls braided brake lines, Polygrapite bushings all the way around, poly tranny mount & torque arm mount, Hotchkis lower control arms & panhard rod, Rancho limiter straps, KYB struts & shocks, Gm Wonderbar, Edelbrock strut tower brace, SSM sub frame connectors, Jamex lowering springs, Carbon metallic brake pads, Crossed drilled rotors, Mobil 1 Tranny fluid & motor oil, GM syntheic rear end oil, K&N, Grant stering wheel, 1,200 watt system, Jet Black Paint, 91 Z28 rims, 92 wing, Tinted windows.

 

Which edelbrock headers are you using? Mine are the 86-90 5.0/5.7 with 3" slip fit cat.

 

I used the 6872's with Kenny Brown super subs, and we shortened the subframe conecter by about 12 inches. That's how I got around the problem. It shouldn't compromise the stiffness much.


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Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines,
5-point racing harness, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Speed-sensitive steering conversion, underdrive pulleys, Crane Hi-6 & more. 1.05g skidpad verified.

 

I think I'm going to have to notch the bar on the front 10-12" near the pipe. I'll just have to have the hole in the bar welded shut afterwards. I'm pretty much convinced this will be the only way to avoid butchering the new Y pipe I ordered to replace the hacked one. While the cats off I may gut it as well. I'm looking at the "pipe through it" method while keeping the case intact for appearance.


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Mongoose-NCTGA-1990 Pontiac Formula/305 TBI-700R4 with Edelbrock Performer TBI intake,TES headers,and STB,K&N,MSD-6AL,Holley laser shot coil,Accel Extreme 9000 wires,Jet Stage 2 chip,TCI shift kit with corvette servo,Richmond 3.73 gear with Auburn 3 series posi,3" high flow cat with SLP 3" cat back,Eibach sportline springs,Energy Suspension poly throughout,Lakewood LCA and adjustable panhard bar package,SSM subframe connectors,IROC wonder bar,Tokico 5 way adjustable struts and shocks,Autometer electric fuel pressure gauge,Alpine,JL Audio,MB Quart,92 GTA taillights,92 GTA aero wing and hatch,Steve Spohn LCA relocater kit,MacEwen White face gauges,84 T/A cold air induction air cleaner.