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10:1 Compression on 2.8 Stroker RB26

RB335

By RB335,
in Engines & Forced Induction

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RB335 Rising Star

RB335

Posted
Posted

Hi Guys.
 
I'm going a custom stroker kit on my RB26 it's going to be about 9.5:1 comp ratio.  My tuner has tuned heaps of them on Pump and
no tuning issues.

He hasn't ever done any 10:1 2.8 stroker kits yet and we don't know of too many people or any at all that have gone that high.

I'm posting here to ask if anybody here personally has done so and how was tune-ability like on Pump and did you run into any issues.
I will be running a Flex fuel setup anyway.

Thanks.

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https://www.sau.com.au/forums/topic/473238-101-compression-on-28-stroker-rb26/
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Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

If you're on ethanol then you wont have any real issues with being knock limited, so static compression of 10:1 wouldn't be your main concern. 

Your main concern should be what turbo you will be strapping to it and I wouldn't put any housing under 1.xx on a motor of that calibre.

Mick_o Grand Master

Mick_o

Posted
Posted

Very much what Dose said too! With a higher comp donk you want to be running a big rear housing to keep manifold pressures down & aid in keeping EGT's down which will allow you to screw more timing in.  More so with the petrol than the Ethanol. But obviously its gunna make it better on E85 & P98 ?

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