Twin turbo setup

mayesj101 · 04-07-2010, 09:25 AM

Quote:

Originally Posted by XwChriswX

The website says its a 4.5L VQ35HR... not a VQ37... are they not planning on using the 370's native powerplant for these type of builds... or just needing to update it to reflect the newer engine? Or are they still in R&D of the 3.7L's capabilities?

He's still using the VQ37 block, just bored and stroked to 4.5L. The max size you can bore out the VQ (if I remember) is ~4.2L.

ChrisSlicks · 04-07-2010, 09:42 AM

Quote:

Originally Posted by mayesj101

He's still using the VQ37 block, just bored and stroked to 4.5L. The max size you can bore out the VQ (if I remember) is ~4.2L.

I believe the VQ35 and VQ37 are the same basic block, the VQ37 simply uses a longer stroke. Everything else on the engines are different, heads, crank, rods etc.

mayesj101 · 04-08-2010, 09:13 AM

Quote:

Originally Posted by ChrisSlicks

I believe the VQ35 and VQ37 are the same basic block, the VQ37 simply uses a longer stroke. Everything else on the engines are different, heads, crank, rods etc.

You know what I meant-the starting point for the 1000hp kit is a stock VQ37-but it has been bored/stroked to achieve 4.5L.

The VQ35 and VQ37 actually are rather similar-the VQ37 is an updated version. I'm not saying they're clones, or just a few parts differ, but it's a twin-intake, 95.5mm bore, all-aluminum 4-valve-per-cylinder DOHC engine. The VQ37 increases bore by 4.6mm, introduces VVEL, and increases compression from 10.6:1 to 11.0:1. They're not all that different.

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