E30 the biowaste - M20B28 itb race car

[hasa]

We will see how difficult it is to adjust & tighten. Fortunately there is no tank on the way. Next point of consideration comes with the pumpkin bushing. Hole is 84.0mm. Garagistic riser bushing is 85.0mm. Condor version is 84.5mm. I would not like to press the bushing in violently as the surrounding material is cast aluminium. It is weak part anyway without extra load. Sent from my iPhone using Tapatalk

[hasa]

So Condor version was selected. I made also reinforcement plates from 3mm mild steel. Sent from my iPhone using Tapatalk

[hasa]

Can someone confirm if these Garagistic delrin bushings work or not? What surprised me is that they are so hard that one cracked when I desperately tried to hammer it to the place (with a plastic hammer). Sent from my iPhone using Tapatalk

[Northern]

My garagistic subframe bushings did the same thing, except it was the full flange that snapped off...

[moatilliatta]

Sadly, Id just burn anything Garagistic.

[amcp]

Seconded.

[hasa]

Now this should be ready to race. Sent from my iPhone using Tapatalk

[e30davie]

Just read your thread, very nice engineering and fab work, love the mitutoyo calipers! disappointing about the garagistic stuff, The body kit looks to have turned out fantastic.

It is very green!

[hasa]

First races finished.

[2mAn]

No action pics?

[hasa]

[hasa]

Season is over. Conclusions:

• Car needs brakes. Floating calipers seem not to work in my setup. I ordered 4-piston kit that should solve the problem, but requires swapping to Non-M knuckles, which is drawback.
• Car needs more power. I believe 45mm secondaries in the headers could be one thing preventing engine to produce power after 6000rpm. Stock head maybe too.

Solutions are on the way

• 4 piston kit
• New head with 195cfm@28"
• Cam upgrade 304 -> ?
• Major rework of dBilas intakes to fit

[hasa]

Adapters are installed wrong way here... but anyway




Head and manifold came back. Head flows about 195cfm and the intake is matched to the ports (which required welding).

[hasa]

Running engine weighs about 156kg Sent from my iPhone using Tapatalk

[2mAn]

Cant wait to see this back together