[[TUFFVQ]Participant Melbourne1991 VQ 304 View build HERE Member since: March 2, 2015 Posts: 171]

I put a 10mm plate across the top of the sub frame (like what you have done) and doublers on the trailing arm mounting bolts. Will be interested to see it’s condition after a few years on SSSL’s and a spool.

[[TUFFVQ]Participant Melbourne1991 VQ 304 View build HERE Member since: March 2, 2015 Posts: 171]

Can someone tell me what makes a Holden 304 so hard to work on?

They’re about as simple as it gets.

[[TUFFVQ]Participant Melbourne1991 VQ 304 View build HERE Member since: March 2, 2015 Posts: 171]

I’ll be in south east asia diving for two weeks.

Tough gig ;)

[[TUFFVQ]Participant Melbourne1991 VQ 304 View build HERE Member since: March 2, 2015 Posts: 171]

Cav – I missed your question on the VR. That thing’s going to the scrappies. I’ve had the shell coming up 2 years in June, I’ve gotten nowhere with it and if i’m spending cash on anything, I’d rather it go to the VQ.

It’ll be free to good home if anyone wants to come pick it up, hopefully I’ll have all the stuff cleared out from inside it on easter weekend.

[[TUFFVQ]Participant Melbourne1991 VQ 304 View build HERE Member since: March 2, 2015 Posts: 171]

Thanks fellas.

What would you like to know? It has a 10″ runner from trumpet to the back of the valve (vs 8″ for VN Group A), 44mm internal diameter. Plenum dimensions are identical to the VN Group A setup. It runs twin 60mm throttles (VN V6), which i’m told is somewhere in the vicinity of 1000cfm. Plenty for this motor. The target 2nd order harmonic for this was somewhere around 5000rpm, and seems to work well.

The attached dyno graph tells an interesting tale. This was with the old 3000rpm dominator stall and an earlier tune. Peak number is also nothing to brag about, I was only chasing what the curve looked like. You can see it falls over about 5700-5800rpm, which means that it’s the cam, not the intake, that’s limiting it. So I was happy with that. The cam is tiny.

For the past 4 years, I’ve done very little to the car, bar little tidy ups here and there; we built our first house and I’ve spent the last 2 years since moving in spending any spare cash on landscaping and interior stuff, which I actually quite enjoy. Instead, I’ve spent time driving it when I can. It’s extremely streetable, even with the ‘ghetto’ nature of it all. My other half drives it regularly, but I have to keep her in check as she lights them up more than I do.

However, the landscaping will hopefully be coming to an end toward the end of the year and I finally might be able to move on to the next stage of things. In saying this, travel is high on the priority list among other things so I make no promises of timelines.

First up:
– Haltech Platinum Sport GM
– New cam and lifters (probably Crane 284)
– Replace rear main seal
– New valve springs and teflon seals
– Head studs
– Replace main studs (have been tensioned a few times)
– New full twin 2.5″ exhaust

Then.
– New intake manifold
– TH400
– M80 3.08 trutrac
– Garrett GT4088 ‘air assist’

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