Posted 08 October 2019 - 12:45 PM
Been offered first refusal on a supercharger kit that has never been fitted to a Mini.
It arrives with the manifold, pulleys, belt etc.
I'm thinking if I do take it then it will go on my recently rebuilt mild 1098 engine.
However can I fit the charger without having a MegaJolt system? Am I ok to stick with my old skill dizzy, and also enjoy the benefits of the charger?
Cheers for any info!
Posted 08 October 2019 - 01:05 PM
I have mine on a 998 using the standard dizzy.
Posted 03 November 2019 - 06:13 PM
My 1098 Engine has recently been rebuilt and has not yet been fitted to the car.
The engine spec is as follows:
295 head w/skim of .60 thou
Standard pistons as fitted to MG 1100
Will I need to carry out any more modification to my engine, or will I be able add this supercharger straight up, and be away with some correct tuning adjustments?
Have read that I could need to fit a decompression plate between the head?
Edited by Albino_Hedgehog, 03 November 2019 - 06:14 PM.
Posted 04 November 2019 - 12:02 PM
Posted 04 November 2019 - 12:42 PM
If you had had the combustion chambers reprofiled, you might have got away without any further modification, but not with flat tops and .060" skimmed off a standard 295 head.
You need at least a 4mm decompression plate, and as you describe your 1098 as "mild", maybe even 6mm.
Go for it, it is a nice combination.
Posted 05 November 2019 - 12:39 PM
Posted 08 November 2019 - 06:45 PM
Posted 09 November 2019 - 09:20 AM
Rough guide is times the existing hp by 1.4, so 100bhp would be 140bhp
Posted 09 November 2019 - 10:10 AM
Posted 10 November 2019 - 10:14 AM
The 1.4 multiplier is used in a lot of racing regs for forced induction, there were some brothers hilclimbing a turbod 998 in a 1400cc hillclimb class rather successfully.
Yep. That's I got the 1.4 multiplier from, hillclimbing.
Edited by HUBBA.HUBBA, 10 November 2019 - 10:16 AM.
Posted 10 November 2019 - 11:50 AM
Posted 11 November 2019 - 12:30 PM
The 1.4 figure came about, because in the days before tapping in 3.1416 into a calculator, when working out the theoretical CC of the engine with pencil and paper, it was easier to use 22/7 for pi because 7 is half 14.
At one time, Formula 1 was either 3 litre or 1.5 litre supercharged, and in recent years I have seen turbocharged cars using 1.7.
"Not a lot of people know this" , back in the early 1960s, to run a supercharged A series engine in the 1,500 class, it needed to be no larger than 1,071cc.
Edited by DeadSquare, 11 November 2019 - 04:39 PM.
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