You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!
If you have any problems with the registration process or your account login, please contact contact us.
Performance Exhaust SystemsDetailed discussions regarding performance headers, single, dual, street and off-hard racing exhaust systems for your vehicle.
This is a discussion thread titled "Installed the Thorley headers today...", within the Performance Exhaust Systems forum, part of the Technical & Vehicle Assistance Forums category.
I can see that point but isn't that based on the cork style/felpro type gaskets? The header gaskets are the thin metal stackable types..and the ports coming off the heads into the headers havent changed..they are the same diameter...
Also I would suggest not using the gaskets that come with headers. Of course there will be exceptions, but in my experience supplied header gaskets are rarely of good quality. In the old days we bought Hooker headers, threw out the paper gaskets they came with, and bought some FelPros instead.
I can see that point but isn't that based on the cork style/felpro type gaskets? The header gaskets are the thin metal stackable types..and the ports coming off the heads into the headers havent changed..they are the same diameter...
You are correct. You can reuse the metal gaskets over and over again.
Big Al's fixed the 2 mistakes I made but could not get the 2 nuts on the studs..so I am taking a chance that between the metal gaskets and there being 7/8 nuts on the header that I will be ok..I spent time on the phone with the guys from Thorley re-living my experience and hopefully there will be improvements to the instrucitons...the 2 nuts that I could not get on should have been the first two to be put on but I did not know that.
Driving it last night and this morning there is a noticeable improvement..before when needing to accelerate the truck would downshift..not any more! It pulls nicely off the line and does not fall off..and from a 55-60 roll when I accerlarate it pulls hard!
I have a CAI/cat back and with the headers it is louder; only makes sense since the pipes are larger; if you want your truck to be as quiet as stock don't swap the headers/cat back...I love the sound of the big V8 but that may not be for everyone..
I checked under the hood and sure enough the air intake tube popped out from the rubber connector...put in back in and it runs, idles and sounds like it supposed to! On my way to Big Al's to have them fix the uh oh's I did...and to see if they can get those 2 nuts on...
I'm a genius aren't I I've been working custom Turbo Cressidas and Supras for years, and when a vacuum is leaking, it'll do what you explained. Even if the ECU senses and exhaust leak from the manifolds, it wouldn't add enough fuel to stall it at idle. Glad you got your tiny problem fixed tho.
__________________
2007 FJ Cruiser 4x4 5spd A/T, 06 Corolla CE, 02 4Runner SE 4x4 A/T
1991 Toyota Cressida 5spd M/T Turbo Charged
1991 Toyota Cressida 5spd M/T Turbo Charged
1989 Toyota Supra 5spd M/T Turbo Charged
Quote:
Originally Posted by MT Groove
Nitrous is like a hot chick with an STD. You want to hit it, but you fear the consequences.
I was so sick of the truck and getting up and down that I was not thinking straight..thanks for the help..wish I could have gotten the last 2 nuts on and this would be a 100% compete install.
you should be able to loosen all the header nuts (not completely off, just so they are barely holding), slide the headers back of the head and get those nuts on. thats what i usually do for turbo manifolds.
Do you have any sound clips? I would love to hear how it sounds.
__________________
Danny
07 Toyota Tundra CrewMax
07 Toyota Tacoma Sport LB (traded in )
95 Mitsubishi Eclipse GSX
04 Honda CBR 600 RR (for sale)
Installed Thorley ceramics on my 01 Tundra. Cost were 475 and they took about 5 hours. The drivers side seem to touch my oil dipstick tube. Anyone have the same problem or possible fix.
Headers sound great. My JBAs were leaking so made a change.
Thanks.
Re: Installed the Thorley headers today...
I've been working custom Turbo Cressidas and Supras for years, and when a vacuum is leaking, it'll do what you explained. Even if the ECU senses and exhaust leak from the manifolds, it wouldn't add enough fuel to stall it at idle. Glad you got your tiny problem fixed tho.
)
Linear Mode
