OST-077: Nothing double natural about twincharging
06-12-2021, 09:12 PM
Post: #7
RE: OST-077: Nothing double natural about twincharging
As this is being twincharged (for those unknowing - twincharge is using both a supercharger and turbocharger in the same engine)...... Coming up with a cam for this beast was no easy task. After consulting with the engineers @ Cat camshafts, a "new" camshaft design was built.

258 overall, 224@1mm(.040") with 9.25mm of cam lift.

[Image: AEU86 AE86 - RE: OST-077: Nothing double...incharging]


This cam should tick all the boxes, but to run this aggressive of a cam a shim over system just will not work, so this head will be running 1SZ shimless buckets.


To do this I have a set of 8 "sizing" buckets (8 of the thinnest) that I'll use to determine actual clearances, and then order the appropriate bucket to set the clearances.

[Image: AEU86 AE86 - RE: OST-077: Nothing double...incharging]


More to come.... Hurray!

Dan -

You can |Sad .... OR you can ask for help!!!

OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991
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Messages In This Thread
RE: OST-077: Nothing double natural about twincharging - oldeskewltoy - 06-12-2021 09:12 PM

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