Based on the results of my car it is likely the cams themselves can continue to make power past 8k. Unfortunately, there are multiple issues in the VVEL system that need to be taken care of first before you can safely rev the heads past 7900 RPM. The rod bolts also become suspect above 8000 RPM so it is best not to spin one that high.

That said, I am working on getting the parts needed to safely increase the rev limit but the parts for the VVEL system do not exist at the moment. MA and JWT are working on this now.

1slow use BMW m5 rod bolts to rev to 8,200. Don't know how reliable it is at that range but the car is still on the road.

hopefully they will have something by next year..i was planning on doing this in April or May..but i will delay if needed.
thanks for the info..hopefully Daelen from MA can comment on when they think they might have the parts available

Thee are nissan rod bolts available that will do the job from what I have researched. That's no issue. I'm just not going to rebuild my bottom end until we can continue the work in the heads.

As of before Daelen left for vacation there is no current ETA on those parts. I check in on that probably more often than I should lol. There will also be a little bit of a learning curve and experimentation as to if one part will fix more than one issue or if it will require something else.

As far as I have found and they have told me, no one has rev'd these heads over 8k safely for any length of time. Will be fun new territory when the parts required change sorted out.

IPP is in Houston. Sooooo work is stopped on my rebuild awaiting parts. . I was sooooo close to putting my track rat back together. Ug.

I'll be on the dyno Tuesday.

Edit: First start on new motor hit a few glitches(now fixed). Dyno tune coming soon.

IPP did not know about the V2 cams so I am running v1... (we miscommunicated a bit on that)

I will not be pulling the motor to drop in V2 anytime soon. lol

I think for my street ride V1 will just have to do.

Oh well.

Dammit! Did they indicate moving to the V2 at all? I'm going for an IPP Stage 2 longblock here in the next couple months and I was counting on them having the upgraded cams by then. Either way I'm interested in your Dyno because I'm just wanting to touch on 700 E85 or 650+ on pump gas. If I can get the 650 on pump I'll be done and move the focus to suspension and rear diff.

:ughdance:Just take it to MaMotorsports

I don't blame you for not wanting to swap cams. That's a lot of work on this motor. :icon14:

They will have C2 cams next year. Right now they are exclusive to ATI. Do the group buy and send them to IPP maybe?

IPP did not know about them until I spoke with them today.

In 4 updates. Very interested in increasing the redline.

With the addition of a quality oil pump (Sucker punch or a few others) the C2 cams, and a good tune you can go to 7900rpm for a very long time with no issues.



Going above that, you are building an engine. For most people, getting a few hundred more RPM will not be worth that cost.

Jim Wolf Cam testing for the VQ37VHR -- Results inside!
 

Ok on dyno now. Graphs in a bit.
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