Thread: The Truth about the SR20VET Exhaust camshaft.

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2014-10-07 22:46:10

#21

cortrim1

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Originally Posted by pTen

Originally Posted by ca18
wouldn't the centerline make them unusable?

Unusable? no? Would make them perfectly usable for turbo, pop them in at 0-0. Unlike 20v's which ideally need dialing in

I did not have to dial in my 20v's but would love to see some data on adjusting the cams.

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2014-10-07 22:52:04

#22

TREYDEE

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Originally Posted by BlueRB240

Originally Posted by Coheed
Found it! My 1.06 vs .78ar housing dyno comparison sheet. Granted, this is on the VET cams!

This was hid 30R if I remember right.

how much boost?

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2014-10-07 22:53:05

#23

pTen

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Is this just the ex cam? Sounds like he used both, The intake cam is tiny.

Was vvl switched on the ex side?

Last edited by pTen on 2014-10-07 at 22-54-13.

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2014-10-07 23:02:03

#24

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Originally Posted by BlueRB240

Originally Posted by P10
I'd like to see someone with a larger turbo setup use the high lobes. I'll try it out myself when I get it together, but I have a feeling that my t28 setup I'm putting together won't be free flowing enough to benefit from these lobes

Someone already did. Coohed did with his turbo build with dyno results too.

True, but I thought he didn't' switch the exhaust high lobes on? I may be wrong.

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2014-10-07 23:35:27

#25

BlueRB240

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http://www.sr20-forum.com/turbo/49621-6262-dyno-results-freeway-vid-p30-2.html

I love forums.

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2014-10-08 00:35:53

#26

pTen

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Re: The Truth about the SR20VET Exhaust camshaft.

Originally Posted by cortrim1

Originally Posted by pTen
Originally Posted by ca18
wouldn't the centerline make them unusable?

Unusable? no? Would make them perfectly usable for turbo, pop them in at 0-0. Unlike 20v's which ideally need dialing in

I did not have to dial in my 20v's but would love to see some data on adjusting the cams.

You don't HAVE to dial them in but it's good to, I think it was 4 or 6 + on the intake that would work best

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2014-10-08 00:42:23

#27

pTen

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Re: The Truth about the SR20VET Exhaust camshaft.

Originally Posted by P10
Originally Posted by BlueRB240
Originally Posted by P10
I'd like to see someone with a larger turbo setup use the high lobes. I'll try it out myself when I get it together, but I have a feeling that my t28 setup I'm putting together won't be free flowing enough to benefit from these lobes

Someone already did. Coohed did with his turbo build with dyno results too.

True, but I thought he didn't' switch the exhaust high lobes on? I may be wrong.

Quite sure he was running both vet cams not just the exhaust like what I'm proposing, again the vet intake cam is rubbish.

Don't think he was aware of the full specs of the vet ex ether

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2014-10-18 23:44:21

#28

Autech

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I came across this too nearly 10 years ago. At the time I came to the assumption that it was made from the same billet casting as the "20V" and nissan just ground the low lobe to suit this application. I never got a chance to measure the spec on the cam profile so this is good information.

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2014-10-18 23:48:39

#29

pTen

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Originally Posted by Autech

Yup it looks like this is the case

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2014-10-19 06:43:57

#30

Autech

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I dont think nissan ever had the intention of making the VET to be a serious performer. It was all build to generate homologation number for the S15 GT300 engines. The silvia was planned to continue after the S15 with the VET as the powerplant in GT300.

Heres some pics of the nismo SR20VET racing engine used. Only one car used it.

Sorry for spamming the thread. Not sure if you guys knew or were interested in this.

Last edited by Autech on 2014-10-19 at 06-45-49.

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