super charging a 1098 !

[xeropthalmia]

ive a spare 1098 engine that i would like to use in my 948 saloon ive got a midget box my main question is v max do a conversion for inline a series i was hoping to bore it to 1150 any idea of what piston cr would be safe as not to cook them and what make

[jonathon]

I think they run about 8 to 8.5 on the 1275 based motors. For best results go injection and full management, its much more successfull that the carb which puts fuel mixture through the supercharger, a function I'm informed is not a good idea.( I know it works this way ,but the charger is not designed this way)

[Longdog]

Looks an awesome piece of kit.I used to have a Shorrocks supercharged minor, admittedly a 1275 but driving it always used to bring a smile to my face.

[bmcecosse]

Would hardly be worth boring the engine out - unless it needs it of course. The MINI s/charger seems to work well on the A series (ask GAS on here) - but be sure to upgrade the suspension and brakes first!

[superchargedfool]

ahemm.



low comp lcv pistons in a 1275 with 5 psi is good but forged pistons for 8:1 with 10psi would be better.

thing is a serious 1275 would make the same power as a low boosted standard 1275, so it isn't about power, its more about your choice.

mine runs 10psi and loves it, goes like the clappers. 0 to 60 in low 7's.

vmax kit is good and they are nice people who will help you. I went my own route but purely because thats my sort of thing. If you check my other threads you will find a large thread on my car.

a boosted serious 1098 will be fun but no better probably than a moderate 1275, but it would be cool!

Go on, go for it.

[xeropthalmia]

thanks for the replys ill let you all know if it happens

[bmcecosse]

Sorry 'fool' - didn't know if yours was a MINI s/charger!