Exhaust Manifold glowing

[e30trooper]

it must be pretty bad if you can tell a loss in power at 4500+rpms on an eta. thats the redline, and those heads dont seem to make much power beyond 4000rpms anyway.

oh, and i vote clogged cat too. unless you fucked up your timing somehow.

well tell you the truth im not sure if this eta is chipped or not. I have fuel cut at 5200 rpms . My timing is good , i still get about 25 mpg on the street

[Sir Smirnoff]

Yea, check your o2 sensor voltage when the car is warm. if the value is less than .45volts it's running lean. Unless BMW uses a funky o2 sensor, the sensor goes between 0 and 1.1 volts with .45 volts being exactly lambda. It should not read .45 for more than a second because its always changing and that indicates a bad o2 sensor, and it running in open loop which could cause it to be lean since that is the factory tune.

[e30trooper]

Go look back at some of his posts related to timing. He left his m10 car's timing all fuct up and blew the HG.

Umm no i didnt lol

It wasnt timing it was the ICV, so I deleted it and the car ran great till i broke the dizzy.That was fixed then I sold the car running and yeah no more 318 :D

[xwill112x]

cut the cat off, then put a resonator/muffler in its place.

[Farbin Kaiber]

Go look back at some of his posts related to timing. He left his m10 car's timing all fuct up and blew the HG.

[lennon]

it must be pretty bad if you can tell a loss in power at 4500+rpms on an eta. thats the redline, and those heads dont seem to make much power beyond 4000rpms anyway.

oh, and i vote clogged cat too. unless you fucked up your timing somehow.

[e30trooper]

Does the car feel down on power?

Feels good just my top end sucks since i had the muffler installed
I think its killing the flow. Since its a eta the stock piping is 2 1/4 to 2 1/2 single inlet and dual 2 tips. From what I read the muffler was for 1 into 2 , Maybe not? Maybe its for dual to single and thats why it flows like shit. It sounds fucking great but top end sucks.

[Danny]

Does the car feel down on power?

[e30trooper]

you could be running lean too. That happened to our FSAE car cause it was running lean... also you may wanna check your valves after that.... they can burn up because of that

yea , well i dont really care for the head. I have a I head, I intake and all other parts just waiting to be put on lol . Ill end up ditching the muffler set up too. It was still heating up tonight but not as bad lol

[Sir Smirnoff]

you could be running lean too. That happened to our FSAE car cause it was running lean... also you may wanna check your valves after that.... they can burn up because of that

[e30trooper]

thanks guys! Ima see if i can take the muffler off tonight :D and see what happens, if i still have the same crap then most deff the cat. Wish I had a camera that shit was bright red lol

[e30loverSC]

i agree with the clogged cat theory

[Adrian_Visser]

I would tend to lean more towards the cat as well.

[e30nub]

I say clogged cat.

[Adrian_Visser]

Could be the new muffler or the cat is clogged.