1971 Chevelle Twin Turbo LS1

[nitrorocket]

I don't really think it will matter if you coat them after the dyno, the first full throottle run through all the gears, or the first smokey burnout you do in 2nd or 3rd gear, they will get just as hot or hotter anyway.

[BC69]

Great Project! I love the way the exhaust looks.


Tim

[jonny51]

Looks really nice but I would consider a minimum of 304 stainless for your headers.

[nitrorocket]

I know he has done his research... to do a set of 321 stainless headers would cost over $2000 in materails alone. Mild steel can be done for about 1/4 of that. That makes it much more cost effective for a street show car.

Now, if you are going to flog it, and keep the headers glowing cherry red very often, stainless would be a better choice because you do not have to coat them.

His headers will look nice when coated.

I never asked? What pcm are you using? If you are using the stock PCM, when the time comes I can help you set up a tune for you to support over 1000 hp on 93 octane with your engine. Most shops seem to be pretty week on the pumpgas tunes.

Looking good!!

[TT402LS1]

Originally Posted by nitrorocket

I know he has done his research... to do a set of 321 stainless headers would cost over $2000 in materails alone. Mild steel can be done for about 1/4 of that. That makes it much more cost effective for a street show car.

Now, if you are going to flog it, and keep the headers glowing cherry red very often, stainless would be a better choice because you do not have to coat them.

His headers will look nice when coated.

I never asked? What pcm are you using? If you are using the stock PCM, when the time comes I can help you set up a tune for you to support over 1000 hp on 93 octane with your engine. Most shops seem to be pretty week on the pumpgas tunes.

Looking good!!

A buddy of mine has his own Super Flow 901 engine dyno. He owns a small machine shop in Iowa. He has done a few FAST setups, and has been talking to a guy about the BS3 system. Im letting him decide what setup to use on my car because he will be the one tunning it. Im just learing. I think he is leaning towards the BS3.

Did you get to drive your car with the six speed in it yet?

Ron

[TT402LS1]

Originally Posted by nitrorocket

I don't really think it will matter if you coat them after the dyno, the first full throottle run through all the gears, or the first smokey burnout you do in 2nd or 3rd gear, they will get just as hot or hotter anyway.

Do you think so? I was thinking that the car it self will never hook hard enough to load the engine like the dyno will. Anyone else have any thoughts on this?

Thanks - Ron

[nitrorocket]

From experience, a full throttle pass especially in high gear, put much more load on my engine then the Chassis dyno did.

It's pretty wierd with stainless. I do not have them coated, and they always change color. If I drive normal they get brighter in have more rainbow colors in them, if I pput a heavy load on it, they turn real dark gold.

I have not driven the car with the new trans yet. I still do not have it in, I am waiting on having my gears returned from Liberty so I can throw the trans back together and install it. That is all I am waiting on though. Should be about 3 more weeks I guess.

[SteveMcqueenRules]

I think you just cant have the coated headers on if you are breaking in the motor. it voids the warranty on most coated headers.