m104 headers.
09-24-2011, 10:06 PM
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1990 300ce supercharged and intercooled
m104 headers.
I am building headers for my car. Thought someone might like to see. I also have extra flanges available if anyone wants some. I made up 5 sets. Good for custom headers for any application. 1 7/8 primaries and 2.5 collector.
09-25-2011, 05:07 AM
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12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG sold)
They are going to look like a nest of snakes 
Very nice 
Very nice
09-25-2011, 11:39 AM
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1990 300ce supercharged and intercooled
They are going to look like a nest of snakes
09-28-2011, 08:17 AM
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12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG sold)
Equal length pipes is the way to go (if possible.....) 
10-05-2011, 05:13 PM
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1990 300ce supercharged and intercooled
more progress
Finally got the layout for the rear 3. Not a lot of room in the back. Should have it all tacked together by the end of the week and I will start tearing them down and fitting and welding all the seams. Looks like the rear is going to be 20" on one and somewhere close on the others. Right now everything will go with just moving the engine over a little. The stock air box does not fit though, not that I use it.
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11-09-2011, 12:38 AM
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1990 300ce supercharged and intercooled
They are all done and installed on the car. Car feels good but I have not made it to the dyno.
Track got rained out last few test and tunes also. I also do not have enough injector for the e85 and have switched to regular pump gas. If I had to guess I am making near the same power on the pump gas as I was making with the e85. Next year some 1000cc injectors and the e85 tune. Then a little more boost.
Track got rained out last few test and tunes also. I also do not have enough injector for the e85 and have switched to regular pump gas. If I had to guess I am making near the same power on the pump gas as I was making with the e85. Next year some 1000cc injectors and the e85 tune. Then a little more boost.
12-10-2011, 11:44 AM
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1990 300ce supercharged and intercooled
Well made it to the dyno. Switched back to pump gas and about the same conditions as last dyno on e85. Made 11.2wtq and 15whp more through the bottom end on about 2 degrees less timing. I know the headers are working and I did not go to big since I got the torque and hp on the low end. I think I am just hitting the wall on the head.
Top end was basically unchanged. Did not have time to play with the cam timing and may have gotten a little out of it that way. About a 15 whp drop when the cam turns off but I have found that above 6,000 rpm the change is way less in the past. Got me looking into the head and the cams. Lift and duration is just awful on the stock cams. Mainly lift. I am going to have custom cams made and the head worked over. Found that the head will have to be modified to fit high lift cams in. Going to have the bowls worked over to.
Basically think that the head will not flow anymore. So no reason to go for the bigger injectors and e85 tune if I am making the same power on pump gas and headers. It will be a few months at least.
Top end was basically unchanged. Did not have time to play with the cam timing and may have gotten a little out of it that way. About a 15 whp drop when the cam turns off but I have found that above 6,000 rpm the change is way less in the past. Got me looking into the head and the cams. Lift and duration is just awful on the stock cams. Mainly lift. I am going to have custom cams made and the head worked over. Found that the head will have to be modified to fit high lift cams in. Going to have the bowls worked over to.
Basically think that the head will not flow anymore. So no reason to go for the bigger injectors and e85 tune if I am making the same power on pump gas and headers. It will be a few months at least.
12-10-2011, 11:44 AM
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1990 300ce supercharged and intercooled
Well made it to the dyno. Switched back to pump gas and about the same conditions as last dyno on e85. Made 11.2wtq and 15whp more through the bottom end on about 2 degrees less timing. I know the headers are working and I did not go to big since I got the torque and hp on the low end. I think I am just hitting the wall on the head.
Top end was basically unchanged. Did not have time to play with the cam timing and may have gotten a little out of it that way. About a 15 whp drop when the cam turns off but I have found that above 6,000 rpm the change is way less in the past. Got me looking into the head and the cams. Lift and duration is just awful on the stock cams. Mainly lift. I am going to have custom cams made and the head worked over. Found that the head will have to be modified to fit high lift cams in. Going to have the bowls worked over to.
Basically think that the head will not flow anymore. So no reason to go for the bigger injectors and e85 tune if I am making the same power on pump gas and headers. It will be a few months at least.
Top end was basically unchanged. Did not have time to play with the cam timing and may have gotten a little out of it that way. About a 15 whp drop when the cam turns off but I have found that above 6,000 rpm the change is way less in the past. Got me looking into the head and the cams. Lift and duration is just awful on the stock cams. Mainly lift. I am going to have custom cams made and the head worked over. Found that the head will have to be modified to fit high lift cams in. Going to have the bowls worked over to.
Basically think that the head will not flow anymore. So no reason to go for the bigger injectors and e85 tune if I am making the same power on pump gas and headers. It will be a few months at least.
12-10-2011, 05:56 PM
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Well made it to the dyno. Switched back to pump gas and about the same conditions as last dyno on e85. Made 11.2wtq and 15whp more through the bottom end on about 2 degrees less timing. I know the headers are working and I did not go to big since I got the torque and hp on the low end. I think I am just hitting the wall on the head.
Top end was basically unchanged. Did not have time to play with the cam timing and may have gotten a little out of it that way. About a 15 whp drop when the cam turns off but I have found that above 6,000 rpm the change is way less in the past. Got me looking into the head and the cams. Lift and duration is just awful on the stock cams. Mainly lift. I am going to have custom cams made and the head worked over. Found that the head will have to be modified to fit high lift cams in. Going to have the bowls worked over to.
Basically think that the head will not flow anymore. So no reason to go for the bigger injectors and e85 tune if I am making the same power on pump gas and headers. It will be a few months at least.
Top end was basically unchanged. Did not have time to play with the cam timing and may have gotten a little out of it that way. About a 15 whp drop when the cam turns off but I have found that above 6,000 rpm the change is way less in the past. Got me looking into the head and the cams. Lift and duration is just awful on the stock cams. Mainly lift. I am going to have custom cams made and the head worked over. Found that the head will have to be modified to fit high lift cams in. Going to have the bowls worked over to.
Basically think that the head will not flow anymore. So no reason to go for the bigger injectors and e85 tune if I am making the same power on pump gas and headers. It will be a few months at least.
What were your dyno numbers?
12-10-2011, 09:47 PM
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12-10-2011, 10:51 PM
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Thanks, I was really hoping for a lot more hp but it seems I have other things to work out. If head work and cams do not do it then I just do not know. I really do not want to up the boost to much more. From talking to people though I am getting the impression there is a lot to improve on the head and a whole lot on the cams. But one requires the other. I am going to do the head work first but see what cam profiles are suggested first because the head has to be modified for high lift lobes.
