1972 MS75 Toyota Crown Hardtop-1FZ-FE turbo

[TK]

Must be handy to be able to change valves by whacking your fist down the ports,.

We ain't done there yet - waiting on some (much) bigger valves, then we'll see just how much the sucker can flow.

[Supercrown]

Here's a rough sketch of the plenum I'm planning.

I'm thinking of trying to get the main body of the plenum bent up out of 5mm plate to reduce the chance of it rupturing at 40+psi boost. (been there, ruptured that before obviously.....)

Port angle is 34 degrees, but due to clearance issues around the cowl panel I'll probably only be able to get the runners on a 30 deg angle.

Runners will be 54mm ID, and plenum volume approx 12-13L.

[GSRman]

going to reduce the plenum vol;ume away from the throttlebody?


edit - I should have actually looked at the pic on the left i guess.. im not sure how i missed that....

[Roadsailing]

can't flush mount the bellmouths? i'd aim for more of a parabolic/elliptical taper, but that might just be a limitation of autocad.

i'm guessing the manifold will be braced, will be a bit of a heavy bitch with 5mm alloy

[BQ.05.TD]

you wont get a air filter no that sucker mate lol, it WILL turn it inside out, just a bit of chicken mesh should stop the birds

i went out and looked at the old mans cruise after seeing these pics WOW


just WOW

[Monk]

So this will be ready for the QLD Jamboree right???

[stockymcstock]

surely a properly welded plenum of 4-5mm alloy would be able to contain upwards of 100psi pressure? or is the issue pressure waves adding in phase and shock loading the walls?

[ALLMTR]

So this will be ready for the QLD Jamboree right???

A long way to come just to race in exhibition.

[GSRman]

what doesn't it meet?

[TK]

what doesn't it meet?

Sanity requirements.

[morerevsm3]

can't flush mount the bellmouths? i'd aim for more of a parabolic/elliptical taper, but that might just be a limitation of autocad.

I am in the process of making similar for mine-



it will have 3mm alloy rods welded between the top and bottom surfaces to stop it blowing apart...and only ~ 8psi to contend with, should end up similar to this

[pisana]

I am in the process of making similar for mine-



it will have 3mm alloy rods welded between the top and bottom surfaces to stop it blowing apart...and only ~ 8psi to contend with, should end up similar to this

PPF!! :D

[morerevsm3]

yes, I borrowed some (most) of the design cues from Andreas

[garage-tuner]

what doesn't it meet?

It can only run in the Extreme Class. (As it did at Compact Attack in May 2006)
The engine (at 4.5L) is too large for all the other classes (6cyl maximum capacity = 4.1L)

[Kaiser]

Weird what you find when you're googling ....

http://autospeed.com/cms/A_1266/article.html