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Coheed's Posts

All posts made by Coheed

Coheed's Posts
- All posts made by Coheed
Posts: 951-975 of 4,264
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Thread: Rings? Gasket? Valve seals? Or what?
Post: Hey, my engine ran great, and still made great power. But...
Hey, my engine ran great, and still made great power. But this is what I found on 90psi compression:


http://i295.photobucket.com/albums/mm158/CoheedJV/DSCN2474.jpg
http://i295.photobucket.com/alb...
2011-08-29 12:09
Thread: Rings? Gasket? Valve seals? Or what?
Post: Bad compression is the sign of some broken pistons. How d...
Bad compression is the sign of some broken pistons. How does the turbine wheel look? have you taken the housing off and looked at it?
2011-08-29 05:36
Thread: Think I went with too big of a turbo...
Post: Yeah I thought the VET had larger valves. Port design is ...
Yeah I thought the VET had larger valves. Port design is slightly different. But I've never seen a 20V head. I know they changed the ports slightly, but to what extent I don't really know.
2011-08-29 02:07
Thread: Think I went with too big of a turbo...
Post: Perhaps this quote will help others. I do look forward to...
Perhaps this quote will help others. I do look forward to the end results on this build.
2011-08-28 21:48
Thread: Think I went with too big of a turbo...
Post: when i've seen detonation on plugs it looked like someone...
when i've seen detonation on plugs it looked like someone lightly dusted the ceramic with a spray paint.

The 3076r is a 6-bladed compressor with a large b-width. I think this is what causes the lo...
2011-08-28 19:05
Thread: Wheel bearing replacement, forgot to put on snap ring
Post: Yea man I agree 100%. Don't risk your like for $60 in par...
Yea man I agree 100%. Don't risk your like for $60 in parts and a couple hours.
2011-08-28 16:40
Thread: VE+T vs DET
Post: The sr16 cams have way more overlap. Only decent for a la...
The sr16 cams have way more overlap. Only decent for a large turbo. The nature of the beast, you cannot dial out the overlap with good results.

Don't worry about stock VE rods, 300whp is nothing. ...
2011-08-28 16:36
Thread: VE+T vs DET
Post: The GT2871r should have the .86ar housing. They have som...
The GT2871r should have the .86ar housing. They have some versions with an unclipped exhaust wheel, and those versions make more power.

You need a 4 bar program to run the 370cc injectors for 300...
2011-08-28 16:27
Thread: VET build Pics.
Post: A friend of mine had a C5 Z06 corvette. He had a rear-mou...
A friend of mine had a C5 Z06 corvette. He had a rear-mount twin turbo setup on it, with small turbos. But he used a huge NA cam because he loved the sound of the lopey idle. He figured a huge cam ...
2011-08-28 16:10
Thread: Think I went with too big of a turbo...
Post: That's the turbo silly! Yeah, the 3076 sounds like a jet!
That's the turbo silly! Yeah, the 3076 sounds like a jet!
2011-08-28 01:10
Thread: Think I went with too big of a turbo...
Post: No, I think the engine is swallowing 500whp worth of air....
No, I think the engine is swallowing 500whp worth of air. But perhaps pumping losses are too high and VE starts to drop too fast on the top end from the backpressure building.

The torque drops mor...
2011-08-27 22:47
Thread: How to: RS6 6 speed swap guide
Post: Here you go Ashton, thread on gear replacements Upgrading...
Here you go Ashton, thread on gear replacements
Upgrading / Reinforcing the 6 speed - evolutionm.net

Here are pics of a broken MR 6 speed tranny. Looks the same to me...
http://forums.evolutionm.n...
2011-08-27 22:12
Thread: How to: RS6 6 speed swap guide
Post: Look for gear stack replacements for the Evo IX MR with t...
Look for gear stack replacements for the Evo IX MR with the 6 speed. That is the same transmission as the Spec V. The 5 speed is a different animal iirc.
I didn't have to take my crossmember off. ...
2011-08-27 22:09
Thread: Bearing failure. What caused this? (pics inside)
Post: You don't have to replace the rod. The rods change color ...
You don't have to replace the rod. The rods change color at a pretty low temp and you have to get heat over 800*F to take the heat treat out, the discoloration is supposedly from the nickle in the ...
2011-08-27 21:57
Thread: Think I went with too big of a turbo...
Post: Sounds like a nice setup DE. One thing I can' figure ou...
Sounds like a nice setup DE.

One thing I can' figure out... Why is injector duty (740cc) well over 90%, Maf Voltage 4.96V, and only 480whp? I would figure 500whp but the dyno disagrees :(

Hope n...
2011-08-27 21:43
Thread: Bearing failure. What caused this? (pics inside)
Post: lost oil pressure, or material from previous issue caused...
lost oil pressure, or material from previous issue caused this failure as well.

Any history on the engine? Sometimes spinning a rod bearing can cause issues in future builds unless you are absolut...
2011-08-27 02:59
Thread: Think I went with too big of a turbo...
Post: 18psi nice! I'd like to see that timing map for compariso...
18psi nice! I'd like to see that timing map for comparison. Let's hear more about your setup.

I noticed that the GT30 felt lazy on 10psi with the log manifold. 15-16psi was where it loved it! 20...
2011-08-27 01:27
Thread: Gt32 a/r 70 w/ a .83backend...to big for vvl?
Post: You're right, I was thinking GT37. The GT32 is a turd... ...
You're right, I was thinking GT37. The GT32 is a turd... kinda.

Also, the turbine is a small trim and doesn't flow too good. Try it and let us know.
2011-08-26 12:38
Thread: Think I went with too big of a turbo...
Post: I am not sure it is a big deal if you rev out the low lob...
I am not sure it is a big deal if you rev out the low lobes. I mean, I did it for a while without issues before I got VET cams. Not that I condone it, but I don't think you will have any issues. th...
2011-08-26 03:07
Thread: Think I went with too big of a turbo...
Post: Ya, looking at it like that my powerband is larger. But s...
Ya, looking at it like that my powerband is larger. But still, if revs were kept up I bet it would stay over 500whp for another 1krpm or so. So If he revved out to say, 8500rpm, he would prob still...
2011-08-26 01:50
Thread: pressing bearing failed, what is to blame?
Post: Literally, the only thing holding that bearing together i...
Literally, the only thing holding that bearing together is a plastic snap. When you press the bearing together, the plastic holds the pieces together. There is a snap ring/retainer ring that is sup...
2011-08-26 01:39
Thread: Clutchnet Clutches= THUMBS WAY DOWN
Post: I've used a few "mom & Pop" store clutches that have held...
I've used a few "mom & Pop" store clutches that have held up better than name brand stuff.

Sigh. Just use higher quality stuff. Rivets braking? WTH. Any cheap pot-metal bolt should hold up to th...
2011-08-25 19:34
Thread: B14 Wheel Selection! HELP!
Post: http://i295.photobucket.com/albums/mm158/CoheedJV/SAM_079...
http://i295.photobucket.com/albums/mm158/CoheedJV/SAM_0799.jpg
2011-08-25 19:21
Thread: no more se-r RAXLES
Post: Ashton, you lucky bastard. You know how long, and how ma...
Ashton, you lucky bastard.

You know how long, and how many axles I bought, to get the right combo for that axle swap job. Grrrrrr.

Oh well, now I got Brembos. And I can use factory shelf parts......
2011-08-25 19:18
Thread: Gt32 a/r 70 w/ a .83backend...to big for vvl?
Post: You looking for over 500whp? The GT32 is a good turbo for...
You looking for over 500whp? The GT32 is a good turbo for that power level. But they are small :P
2011-08-25 19:16
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