Thread: Sr16 90mm bore, much benefit?

Has it ever been done before?

My idea behind it was that the sr16 stroke is better suited to high revving and well it’s something different as well. I know the costs are much higher too.

All I want to know really is would the final capacity be just under 1.8?
Do you think there would there be much gain from doing this?
Is there any issues or risks with going this route?

I believe derm did something similiar. There is a great benefit in increasing cubic inches in any motor.

Stratton.

Thank you. I tried searching before but came up with nothing. Ill try his threads

92mm x 68.9mm = 1.832


90mm x 68.9mm = 1.753


I would go 92mm pistons and rev this bad boy out to 9000-10000 RPMs. It should make 205-215 WHP

I looked at derms build, simply epic. Was there ever figures released for it?




Thanks for the information .

I had originally intended to simply stroke to 2 litres but thought this would be a better set up for high revving n1 engine.

Is there any issue with going to this bore in a road car?

the cheaper route would be stroking with a 86mm crank.

notch the pistons stick em back in, throw some springs and retainers in along with some n1 cams.

you will make the same ammount of power be just as fast and prolly spend a fraction of what it would cost to sleeve along with buying pistons.

stratton.

Also I just don't feel like using the skinny SR16VE rods, I think that the best way to go is 86mm crank

Thanks lads I know that was my original idea a few months back. I have pistons/rods at home for it all ready and I only need a 86mm crank and a few more bits if I was to go that route.

It’s a genuine n1 engine so cams and all the rest are in the engine all ready.

I was thinking of doing this as it is different to what most people have done. It’s not purely for maximum hp.

If it’s a bad idea I won’t do it but just said I would get opinions off the people with the knowledge. I’m only researching at the moment for next year.

kilcosdc, i have a 8 cw crank i can sell you for cheap, its just been machined and hasnt been run since lmk.

although it might be easeir for you to source one in your country.

stroking the motor out is a much cheaper route, and like i said you will make more power and more tq.

stratton.

Thanks man, with shipping and everything would probably not be worth the effort though.

I should hopefully be able to get one in England easy enough if I go that route, sr20de engines sell for very cheap there.

Thanks for the advice again, I knew that stroking was the easier/cheaper route but I said I would see what people though of the 90mm idea or if there were many potential benefits to it.

Im going to try get the most out of the sr16ve first anyway.