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Forced Induction Forum Sponsored by Active Autowerke
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Old 04-02-2013, 05:22 PM   #661
MarcusLSB
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Quote:
Originally Posted by Sound Performance View Post
This is the exact same vibration we get when we do solid mounts in a supra too! Just imagine sitting on the engine while revving it!
Sounds like there's no problem then, just a case of nvh from solid mounts. The way Tom described it, it sounded as if it was something other than just the mounts.

My car started with solid mounts (tranny, diff, motor).. wasn't all that bad (considering I'm driving a 800rwhp+ car, not a off the show room 300rwhp E46 M3). Then i added the cage.. which added to it, but still wasn't anything that bothered me all that much. Then I put in a one piece drive shaft.. and anything above 60mph it was violent.. removed it.. now back to being tolerable again.

Wish Tom had someone else in his area who had solid motor mounts so he could compare it to.
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Old 04-02-2013, 06:00 PM   #662
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That's because Larry hasn't driven my car in the hiway with the 1 piece drive shaft (that I know of atleast, not that I care lol) it's exactly what your saying, I'm sure it still has vibrations but nothing like with the 1 pc drive shaft but I guess I won't know until I pick my car up
Quote:
Originally Posted by MarcusLSB View Post
Sounds like there's no problem then, just a case of nvh from solid mounts. The way Tom described it, it sounded as if it was something other than just the mounts.

My car started with solid mounts (tranny, diff, motor).. wasn't all that bad (considering I'm driving a 800rwhp+ car, not a off the show room 300rwhp E46 M3). Then i added the cage.. which added to it, but still wasn't anything that bothered me all that much. Then I put in a one piece drive shaft.. and anything above 60mph it was violent.. removed it.. now back to being tolerable again.

Wish Tom had someone else in his area who had solid motor mounts so he could compare it to.
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Old 04-02-2013, 09:45 PM   #663
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Vibra-technics?
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Old 04-04-2013, 01:35 PM   #664
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Update: the heads pretty much taken out of the car, as for the head gasket we are trying to obtain the cooper cut ring gasket that Andreas at PPF used on mickes car, I'm waiting for a reply back from Andreas on when those will be ready for us North American customers

Edit: just got a reply from Andreas and the gasket won't be ready for several weeks
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Old 04-09-2013, 04:56 PM   #665
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Update: ordered a new stock head gasket as I spoke with a couple people including Mert and he said the stock head gasket has never failed for him even with a 300 HP shot of nitrous, I guess SP used a cometic MLS gasket with my build last summer (apparently better for supras vs the stock supra gasket) which Mert says he went through a few of them and I guess and had problems as I did.

Wish me luck with the new stock gasket! Good thing is the block is flat and does my require machining so the beast should be back in action soon
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Old 04-09-2013, 06:13 PM   #666
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I still want to get the valve springs checked. What are the other guys using for valve springs??
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Old 04-09-2013, 06:20 PM   #667
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Update: ordered a new stock head gasket as I spoke with a couple people including Mert and he said the stock head gasket has never failed for him even with a 300 HP shot of nitrous, I guess SP used a cometic MLS gasket with my build last summer (apparently better for supras vs the stock supra gasket) which Mert says he went through a few of them and I guess and had problems as I did.

Wish me luck with the new stock gasket! Good thing is the block is flat and does my require machining so the beast should be back in action soon
Thank god! Hope to see it in action soon!

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I still want to get the valve springs checked. What are the other guys using for valve springs??
I believe Micke is using Supertech's and Mert is using Supertech springs with custom built valves (not supertech) if I recall.
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Old 04-09-2013, 06:21 PM   #668
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Can't beat the OEM Headgasket.
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Old 04-09-2013, 06:24 PM   #669
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Can't beat the OEM Headgasket.
^-- Commanderoem

If I would have continued to push the boost I would have entertained a o-ring setup.
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Old 04-10-2013, 12:35 AM   #670
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OEM gasket + L19 = unbreakable
I'm using the same setup for my build.
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Old 04-10-2013, 03:46 AM   #671
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OEM Gasket & L19 studs hold the pressures inside the block.

I ve been spraying 300 shot happily.
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Old 04-10-2013, 11:30 AM   #672
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OEM Gasket & L19 studs hold the pressures inside the block.

I ve been spraying 300 shot happily.
What valve springs are you using and how much boost are you running?
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Old 04-10-2013, 11:49 AM   #673
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check with CES to see if they can't make you a cut ring gasket for your s54, they provide one for the s52/s50 and are local in the states. like marcus mentioned prep work required for the pyramid style but worth it if your shooting for high power. im surprised MLS held as long as it did on dyno.
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Old 04-10-2013, 03:43 PM   #674
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Spoke with both CES and VAC and neither vendors have the cut ring gasket available for the E46 s54 motor, also I believe the cut ring gaskets CES had for the s50/s52 were PPF products and they would just buy large quantity to have them for state side customers but I spoke with a guy at CES and he said alot of installers/machinists were not installing the cut ring gaskets properly and had problems with them that's why they have not released for the E46.
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Old 04-11-2013, 09:06 AM   #675
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Valve springs??
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Old 04-11-2013, 10:27 AM   #676
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Most turbo guys here are using stock, mainly the built N/A guys will have aftermarket valves for higher revs, I believe RS worxs is one of the only ones I've seen with the valve springs in there build
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Valve springs??
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Old 04-11-2013, 10:41 AM   #677
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I need to know what guys running 30-45 psi of boost are using.
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Old 04-11-2013, 10:55 AM   #678
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I need to know what guys running 30-45 psi of boost are using.
Supertech
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Old 04-11-2013, 11:38 AM   #679
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brand of spring doesnt matter, psi rating of the spring does. my supertech valvetrain usues 82psi but they are also offered in 64 and 70psi. gotta determine what stock spring pressure is 1st though to see if the valves pushing open is the culprit
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Old 04-11-2013, 11:45 AM   #680
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brand of spring doesnt matter, psi rating of the spring does. my supertech valvetrain usues 82psi but they are also offered in 64 and 70psi. gotta determine what stock spring pressure is 1st though to see if the valves pushing open is the culprit
Supertech only makes one application for the s54. I believe both Mert and Micke are running them. Mert is however running custom made valves iirc.



Part Number O.D. (MM) I.D. (MM) O.D. (MM) I.D. (MM) Seat Open mm mm lbs/mm Part Number
SPR-2521/BM 26.4mm 19.3mm 19.3mm 14.5mm 82@41 186@10 15.5mm 25.5mm 10mm RET-BM…
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