Header Install
#112
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They're Installed!!!
Did the deed today and from start to finnish it took me 9 hours. I couldnt get the hoist so I used a buddies garage with floor jack and jack stands. The creeper came in handy too as there was lots of under cover work. My car has a little over 100k on it so my bolt were a bit tough get of and I wound up zip disking 3 of them off, 2 for the cat and one on the cross over. It was somewhere around 5 hours to get the old mainfolds out and 4 to put the car back together. The tranny dip stick was a horror story as I first tried to modify the orignal (no luck) and then used the gtp tube, but still more 'fitting' and in and out till I got it.
The beast sounds awesome! I left the cat in for now and will more than likely replace the rest of the exhuast this sprig. The flex pipe almost mated with the cat opening, leaving very little gap to weld.
As for performance you can feel this mod in the seat and the cars pulls all the way to 90 mph (when I let off ). I can feel or hear the car scavenging for air, I need a cai bad.
Did the deed today and from start to finnish it took me 9 hours. I couldnt get the hoist so I used a buddies garage with floor jack and jack stands. The creeper came in handy too as there was lots of under cover work. My car has a little over 100k on it so my bolt were a bit tough get of and I wound up zip disking 3 of them off, 2 for the cat and one on the cross over. It was somewhere around 5 hours to get the old mainfolds out and 4 to put the car back together. The tranny dip stick was a horror story as I first tried to modify the orignal (no luck) and then used the gtp tube, but still more 'fitting' and in and out till I got it.
The beast sounds awesome! I left the cat in for now and will more than likely replace the rest of the exhuast this sprig. The flex pipe almost mated with the cat opening, leaving very little gap to weld.
As for performance you can feel this mod in the seat and the cars pulls all the way to 90 mph (when I let off ). I can feel or hear the car scavenging for air, I need a cai bad.
#114
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Congrats, I'm so gelous!!! Did you put that 3.3 pulley on too? Just trying to rate your butt-o-meter. Didn't kow your car had 100K on it. What'* your exhaust plans for sping?
Get a CAI soon!!! Kinda funny you got headers before an intake.
Get a CAI soon!!! Kinda funny you got headers before an intake.
#115
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How did you guys manage to get to the rear crossover bolts? Just curious because we put 1.9 rockers/90lb springs/retainers/pushrods/ZZP Pulley System & 3.2 Pulley on a friends GP on Saturday and he bought some headers from a guy that was going to put them on his car but decided not to, and I guess this guy offered to install the headers for him for free when he picked them up. Well, I'll just say he didn't do a very good job. The bolts that bolt the headers up to the heads were finger tight, and everything he removed from the engine for access was also finger tight, and he just completely didn't put in one of the rear crossover bolts, and the other one was, guess this, finger tight. The car sounds like it has no exhaust on it due to this, because the headers basically dump out at the rear of the crossover. Not only that, but the guy installing the headers disconnected some vacuum lines while he was working on it and didn't hook them back up properly and the car had no boost. We messed around with the vacuum lines and I don't know how we did it, but we got the car to get boost again. This guy had his headers for a month and didn't notice a gain until Saturday because he wasn't getting any boost. Can you imagine how much different the car must've felt than before with a .2" smaller pulley, headers, rockers, and a stage 2 throttle body that had all been installed since he had no boost. That must've been a huge difference. Anyways, got off track a little bit.
We were trying to get to all the header bolts to tighten them, but couldn't find a good way to access the rear crossover bolts to tighten them. Any tips???
Thanks,
Shawn
We were trying to get to all the header bolts to tighten them, but couldn't find a good way to access the rear crossover bolts to tighten them. Any tips???
Thanks,
Shawn
#116
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Shawn, That sucks about that guys install, totally half assed, I'd go back and complain. Good to hear you and your old man could get it back into boost. Couldn't imagine no boost than to that list of mods. My list isn't that long yet but I'll just go drive my moms 99 Monte Z34 than go for a ride in my car.
Back on track, I'm betting that they could reach do to the larger engine bay we have and they jacked up and dollied under too.
Back on track, I'm betting that they could reach do to the larger engine bay we have and they jacked up and dollied under too.
#117
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I got to the rear cross over bolts from up top and putting together nearly 2 feet of extensions on the ratchet (9/16" btw) with one guy down below to hold the wrench. Just tighten evenly a little on each side untill it pulls together parallel (wouldnt want it cocked to one side leaking out the other?) your going to have to feel this because theres no way you'll see it.
It sounds like he didnt use a torque wrench or follow a circular pattern (normal). I didnt have to remove any vacum lines or the throttle body for that matter, just the air intake and spark plug wires.
I was hoping the gutted air box with k&n would do for now but it looks like I need the big cone, you can hear the throat choking up when you get above 3000rpm.
I dont know what I'm going to do just yet with the exhaust, talking with my mechanic buddy he says to get rid of the whole thing and go 2 3/4" straight from the headers to a Y-pipe with 2x 21/2" outlets into 2 mufflers with no cat or resantor? I'm going to wait for Silverbullet and see how is results are with a straight pipe and no Cat, go from there?
It sounds like he didnt use a torque wrench or follow a circular pattern (normal). I didnt have to remove any vacum lines or the throttle body for that matter, just the air intake and spark plug wires.
I was hoping the gutted air box with k&n would do for now but it looks like I need the big cone, you can hear the throat choking up when you get above 3000rpm.
I dont know what I'm going to do just yet with the exhaust, talking with my mechanic buddy he says to get rid of the whole thing and go 2 3/4" straight from the headers to a Y-pipe with 2x 21/2" outlets into 2 mufflers with no cat or resantor? I'm going to wait for Silverbullet and see how is results are with a straight pipe and no Cat, go from there?
#119
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Pontiac Dad
i took my resantor off. i have 3" from the cat back.
putting a dyno max race muffler in its place p/n 289-24219
3" in 3" out 18" long and its round so it will fit where the
old resantor was . p/n for 2.5" 289-24215 but its shorter at 12" long
moroso also makes a low backpressure muffler p/n 710-94050 for the 2.5"
p/n 710-94051 for the 3" both are 18" overall
and will fit where the resantor is now with little or no backpressure
Rod
i took my resantor off. i have 3" from the cat back.
putting a dyno max race muffler in its place p/n 289-24219
3" in 3" out 18" long and its round so it will fit where the
old resantor was . p/n for 2.5" 289-24215 but its shorter at 12" long
moroso also makes a low backpressure muffler p/n 710-94050 for the 2.5"
p/n 710-94051 for the 3" both are 18" overall
and will fit where the resantor is now with little or no backpressure
Rod