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Questions about Front Y Pipe Install (87 Coupe)

Mad-Mic

Gone but not forgotten
Joined
Feb 12, 2002
Messages
1,853
Location
Annapolis Maryland
Corvette
1987 Redskin Red Coupe
Thanks to Steve1ph i got a new (to me :D) front Y pipe with no pre-cats.

i have a few install questions if you guys can help me!?!?!

looking at the bung hole for the O2 sensor on the pre-cat Y pipe the bung is roughly 6 inches below the flange before the cat on the driver's side. on the new Y pipe the bung is about 6 inches from the bend where the pre-cat would be.

will this give me any problems?

any ecm problems?

will i have to relocate the bung hole?

is there anything else that might come to mind that i might need to know with this install?

i was told swap it out, bolt it in, and put the o2 sensor in and plug it back up then good to go. what do you guys think? i don't want to throw codes or even worse ghost codes!


i also played with timing with a friend thats from www.thirdgen.org . he works at a shop that specializes in F-Bods www.fbodycentral.com the time is bumped up to 10-12 degrees. got a base time with the timing light but the damn dampner was greasy and only seen 1 of the marks. didn't help that it was dark with the outside flood light on and a flash light :gap (backyard mechanics 101 at it's best :gap) so Tony and i took that for the base time and bumped it up twice with 2 test runs. no pinging at all and at a 10 mph roll she wants to break the rear tires loose on a WOT romp! i can feel her break loose alittle but not alot. 20 more hp or so i think she will :D so after i get some simple green and clean the dampner up some we are gonna retime it.

mods done upto date:
Mostly stock all "free" and "cheap" mods K&N open air box, MAF descreened, TB Bypassed, 160* T-Stat, Accel Super Coil, timing set 10*-12* degrees and No Mufflers just turn downs on the rear Y pipe. Freshly Tuned up 3 weeks ago.

Front Y pipe going on saturday with a fresh oil change :) might be buying Tony's 3000 stall convert cheap. his cost was $450. he wants a tighter stall because his 89 Trans Am is his everyday driver and i think that will seriously help my 2.59 rear gear with a set of DR's 1.7 60' 's here i come! :D

Test and Tune Friday night if i can get her staged at 160ish water temp and hit a low 2.0 60" and run 98-99 mph i think she'll brake into the 13's. i'm starting to have serious traction problems now i know how to launch the car. spring time i'm gonna need a set of DR's. i see this coming after the intake/cam/reworked heads swap especially!
 
Just plug in the O2 into that hole, i dont think youll run into any problems
 

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