Has anybody got dyno results for adding headers?

[Arns85GT]

Just curious. I'd like to know if we have either either dyno or 1/4 mi. time results for going to long headers vs. OE manifolds.

Arn

[kflo 93 gt]

Well, I've scene dyno charts showing a 20whp gain on an Alero with a 3400 and supporting mods. I'd venture to guess a 3.1 is going to see 10 - 15whp as well.

[Guest]

I say you try it and post the results. Help the fiero and the 60 degree community out.

For everyone else out there, he is talking about the iron heads

[kflo 93 gt]

Surely you've seen some dyno numbers Shaun, you've been in the Fiero world for about ever, right?

I'm actually pretty curious to know, I don't know much about the iron head engines. Little bit before my automotive time.

[kwhauck]

Well, I've scene dyno charts showing a 20whp gain on an Alero with a 3400 and supporting mods. I'd venture to guess a 3.1 is going to see 10 - 15whp as well.

yep, 19whp from the TOG headers and like 26whp from the SS headers,

I prefer TOG headers because they had better torque numbers and a much better power curve, the ss power curve was very spiky and just about the peak numbers.......

[Arns85GT]

thanks

Thanks,

BTW I like the Alero pic. I had a 2000 v6 and it went like a bat even without headers.

Arn

[Arns85GT]

here is some good reading

This website has some good stuff, not v6 but still good.

There is a sub article at the bottom of the page, also good reference.

Arn

http://www.chevyhiperformance.com/techarticles/49178_headers_power_increase/

[kwhauck]

Thanks,

BTW I like the Alero pic. I had a 2000 v6 and it went like a bat even without headers.

Arn

Thanx, yeah they are pretty fun, but after having a boosted alero, i don't think I could stand to have a stock one anymore.......lol