exhaust help
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exhaust help This winter I installed a new sheet metal intake and a bigger throttle body . I also shortened my exhaust extensions from 12" or so and a turn down, to just a turn down out of the collector.
Well, I lost some 60' time. I know, I know 1 change at a time. The bigger intake and TB is most likely the culpret but now I'm wondering if the shorter extension may have taken a little torque away also.
I just installed new 16" collector extensions and I want to mark them with chaulk? Crayon? and make a few passes to see what the perfect length would be and cut the access off.
What would you guys use to mark the black powder coated extensions? I hate a 1.38 short time.
Thanks a million in advance
Well, I lost some 60' time. I know, I know 1 change at a time. The bigger intake and TB is most likely the culpret but now I'm wondering if the shorter extension may have taken a little torque away also.
I just installed new 16" collector extensions and I want to mark them with chaulk? Crayon? and make a few passes to see what the perfect length would be and cut the access off.
What would you guys use to mark the black powder coated extensions? I hate a 1.38 short time.
Thanks a million in advance
Tom,
I went 1.34 with extensions/turn downs and then 1.32 with extensions/bullets (about 6" in difference of length). The big difference though was that I lost a tenth on the big end with the extra exhaust. How did you do out the back door?
I agree with Coach that Madman would have a good answer. IMO, I don't think the crayon would last - aren't they wax?
I went 1.34 with extensions/turn downs and then 1.32 with extensions/bullets (about 6" in difference of length). The big difference though was that I lost a tenth on the big end with the extra exhaust. How did you do out the back door?
I agree with Coach that Madman would have a good answer. IMO, I don't think the crayon would last - aren't they wax?
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Originally Posted by next
Tom,
I went 1.34 with extensions/turn downs and then 1.32 with extensions/bullets (about 6" in difference of length). The big difference though was that I lost a tenth on the big end with the extra exhaust. How did you do out the back door?
I agree with Coach that Madman would have a good answer. IMO, I don't think the crayon would last - aren't they wax?
I went 1.34 with extensions/turn downs and then 1.32 with extensions/bullets (about 6" in difference of length). The big difference though was that I lost a tenth on the big end with the extra exhaust. How did you do out the back door?
I agree with Coach that Madman would have a good answer. IMO, I don't think the crayon would last - aren't they wax?
I'm doing really well on the big end. The other day the DA was hovering at +2,500 to + 2,900 and I ran a worst of a 1.40 @ 9.89 @ 137.9X to a best of 1.38 @ 9.82 at 138.3X.
You lost a 1/10 with mufflers? I remember my engine builder warning me of a possible 10 HP loss if I went with 3.5" bullit mufflers out of my 3.5" collectors. He said to go with 4" bullit mufflers and there should be no HP loss. I used to run 3.5" X 13" extenders and a turn down and some classes required a bullit muffler and I ran a 4" bullit muffler and a turn down with no significant short time, ET or mph loss.
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Originally Posted by Coach 02 A3 Z/28
Tom, Are you racing this weekend?
Coach
Coach
I went home with my tail between my legs
I pulled the new intake to change the cam position sensor and found the green wire on the cam position sensor plug was severed and held together with only 1 thread of metal wire. I put a new plug on, new CP sensor too. Took it to the track on 2 TNT nights last week and this week and the miss is gone. 8 passes and NO MISS. Yes I am racing tomorrow my drag racing friend. I just got in from loading everything up. All I gotta do is fire the truck up and go.
I'll really try and make up for getting my a$$ kicked 3 weeks ago. How about you Coach? You racing this weekend?
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Hell yes, I am racin this weekend. Check out the post in the drag racing results section.
Glad to hear ya got everything running great again. Good luck man, and remember Dial her hard and don't lift at the top end when your racin the snakes.
Coach
Glad to hear ya got everything running great again. Good luck man, and remember Dial her hard and don't lift at the top end when your racin the snakes.
Coach
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Originally Posted by Coach 02 A3 Z/28
Hell yes, I am racin this weekend. Check out the post in the drag racing results section.
Glad to hear ya got everything running great again. Good luck man, and remember Dial her hard and don't lift at the top end when your racin the snakes.
Coach
Glad to hear ya got everything running great again. Good luck man, and remember Dial her hard and don't lift at the top end when your racin the snakes.
Coach
Interesting...I'm going to play with some different length extensions and mufflers on my car this year. When you mark the pipe, do you mark the muffler as well? Or do you just mark the pipe, run, cut it off-then add the muffler? Or subtract the length of the muffler from the section of pipe that the mark is burnt off?
Thanks
Thanks