Good work, I'm enjoying this build!

Leave it as is. I'll be adding longer runners before the plenum as well.

Nice work! That's some decent W/kg. This thread encouraged me to buy a weber manifold when I saw one come up second hand. Just finished boring it to weld in the injector bungs. Thanks for the inspiration!

Thanks for the right up! Really interesting. I have got my new 3D printer going, finally. Has a 400mm build cube. It all sounds achievable with some time to throw at it.

What's your casting setup? How are you melting the aluminium, pouring it, etc.? I'd like to see some more pics and description of that if you don't mind sharing and have pics to share.

I haven't actually fitted any or even built an intake manifold I'm happy with yet. Hence I don't really have useful input. I have collected a few different turbos to use though. I have a T25, T28, T3 (from a SAAB), I've also toyed with using a GT18v off a diesel sprinter van. The EGTs might be low enough with e85? Lots of work to find out!

Then there's the M90 blower in a box in the shed I thought about fitting. I do like the idea of twin charging but packaging is an issue. Twin charging is probably overkill when you've already got the big block A series but allows a bigger turbo and a wider torque band.

Right now I'm trying to stay focused on getting a gearbox ready.

That is the clutch cover I have bought. I can reverse engineer it, I was just looking for a short cut. Short cuts are great, something to compare your work to.

Dattoman, did you use the sr20de pulsar clutch? Happen to know pcd on the location dowels or have a drawing for the pattern?

I'm doing a cut and shut, the auto bell is too long. It'll be a bit of the 21r bellhousing, a bit off the front of the a series box and a plate in between since they won't line up. I'll write it up once I've confirmed it works.

After a trip to my favourite parts shop I can confirm the Toyota clutch cover is too big. The sr20de 95 pulsar clutch cover will fit. They measured the thickness of the pulsar and rn40 hilux discs for me as well. The hilux disc is about 1.8mm thicker so it'll be a flat flywheel with shims or a spacer. See how it works out.