Today i was checking the oil in the car like always, and i happen to look around the manifold, and i happened to see that i have a missing bolt from the manifold to the hotside, i have a leak and ive been running like this for a while i guess. I still ran 12.501@110 with a leak! I need to get a new bolt, i will be fixing this tomorrow.

Question is, how much power and tq would i have been loosing bc of the leak???

 

25whp and 30wtq...

 

I think Buschur dynod that to be the loss if two bolts were missing. One bolt was just 17whp and 18wtq.

 

I stand corrected

 

You think thats bad.....I had a 1/4 inch gap between the lower part of my exhaust manifold and exhaust ports, between fixing that and moving to a stroker I picked up 60 ft lbs!!!!

Scorke

 

Im gona fix the leak this weekend and try to go back to the track next friday to see how it runs, the car stil pulls hard even thou its leaking, LOL!

 

cant you hear an exhaust leak?

 

no but when i put my hand around it i can feel the pressure

 

As i posted in a previous thread, i had discovered that one of the bolts from the hotside to the manifold(megan) was missing so i had a leak. Well i got a new bolt and tightened everything back and i still can feel pressure coming out from the side.. I mean its not a big leak or anything, you cant even hear it when i rev it or at wot.. Car hold boost all the way to redline like always and pulls good.. Theres no signs of carbon or black around the leak which is good.. My question is, since its a small leak, is this affecting my power??? Im guessing the gasket is leaking since thats where its coming from.. WHat do you guys think?

 

bump!

 

change the gasket. carbon monox poisoning is no fun (windows up and a/c on)...

do it right...

 

I wouldnt think your losing power. Unless you are getting a bad reading at your front o2sensor.

 

Well the thing is that theres no carbon coming out from the leak at all. I put my finger around it and reved and nothing came out, the only thing i feel is a little bit of air thats all

 

I'd remove all the bolts and re-torque them back down. You may try using a high temp thread sealant. It can be found at most auto parts stores and is a white liquid in a tube that hardens and is used to stop bolts from vibrating loose. (It hardens yet crumbles into dust when force is later applied so it's still easy to remove your bolts with a wrench or socket) Exhaust leaks tend to worsen fairly quickly. A new gasket isn't very much money.

 

im gona order a new gasket tomorrow from .. Weird thing is that when i rev it nothing comes out(carbon) when i put my finger on it