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Thread: Think I went with too big of a turbo...

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Posts: 611-620 of 710
2011-09-18 13:53:38
#611
Originally Posted by Vadim


That's what I said/thought and look at where I am. If you can't go straight to tubular definitely try it. I would like to see if you will be another victim of the log or if your turbo will actually make it out.



This^. I was told from the start to run a tubular manifold or the stock vet. I agree being in the turbo's efficiency range also helps
2011-09-18 14:40:14
#612
How does a tubular manifold prevent reversion caused by too much overlap?
2011-09-18 16:49:35
#613
The longer the runners, the harder it is for an adjacent cylinder's exhaust pulse to contaminate another cylinder. It doesn't rid the reversion entirely, it just reduces it.
2011-09-18 22:09:25
#614
I shouldve drove it.
2011-09-18 22:42:59
#615
What do you have kicking in the Vvl?
2011-09-19 01:22:56
#616
Originally Posted by dfddfd2
How does a tubular manifold prevent reversion caused by too much overlap?


If a log manifold had a better separation of the flow, it wouldn't be a problem.

This is a typical SR20 FWD log:


Bruce from Protech has been very helpful to me, he gave a bit more detail on why the log manifold is far from optimal flow wise. One of them is the exhaust flow from cylinder #2 can go to cylinder 1 or 3 and contaminate them as coheed has mentioned.

Tubular manifold separates them and gives a bigger distance before they are all in one collector. A very short runner tubular would be a little better but not by much.

If we could run one of these log manifolds, it probably wouldn't be as bad too.




Originally Posted by Keo
I shouldve drove it.


We had plenty of time too! Thanks for letting me drive the GTiR, next time I come up I want to drive that GT-R though!



One happy camper about to go for a spin:



Originally Posted by gio94sr20ve
What do you have kicking in the Vvl?


MSD 6989. Getting the VVL power directly from the battery, VVL ground is from the MSD. MSD is getting power from cigarette lighter, ground is on the chassis (before it was on the intake manifold, it looked like it made noise, thus I moved it to the chassis).
2011-09-19 01:35:17
#617
heeyy now, easy on the 71r..
2011-09-19 06:25:59
#618
Vadim. JP seems to be beack, so if you still want these shoot a pm
2011-09-19 13:34:01
#619
Originally Posted by lynchfourtwenty
heeyy now, easy on the 71r..


It was just fine .

Originally Posted by ca18
Vadim. JP seems to be beack, so if you still want these shoot a pm


I decided to just build the manifold thus I wont be needing them, thanks for letting me know though!
2011-09-19 14:03:21
#620
Originally Posted by Vadim




Ok.... That car SERIOUSLY looks bad ass with Se-L. That is just.........my god.

I have no words.... no words what so ever how sexy that car is.
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