I do not think 290 is possible for the price of a turbo or supercharger. A charger kit will run you around 5 grand and up. I think you can reach 250-260 all motor for about the same. It's been stated that the stroker kit is only worth around 40 hp by itself. It really depends on what you want. I think for gobs of power you have to go FI, but if it's the motor that gets you off, realize your going to get less for the same amount of money, but you get to keep the motor's character. I still think it's possible to make M3 type power out the f20c without FI, it's just expensive. And I don't know that anyone's stroked the f20c yet, so to me that is as yet an unproven (although tempting route). Another possibility is to bore the block so you reach 2.2 liters. I think this would net a bit more power for less than the stroker kit, although not the same amount of power the stroker will get. And you'll be able to reach the same high revs and I believe the larger piston would benefit from our high flowing head..... a lot of speculation. An interesting note: check out the specs on NASCAR motors: 5.6 liters, and typically they run a very short stroke, with a very large bore. This allows the engine to rev very high, and most only run about 13:1 or 14:1 CR. these things make 700+ hp, which I think is mostly due to two things: high revs, and high octane gas that enable advanced timing. Our motor is built with these attributes in mind, and I feel that is where the power is to be found. This motor will go beyond 300 hp, IMO, all motor, but I don't yet know what it takes to get there...... I'm interested in finding out.... Another thing: if one was to bore the f20c, it is possible that it's revving range could go higher, 10,000 or more... and your peak hp would also be higher.

keep in mind with all-motor route, it seems to be all about choosing your components wisely, and then spending the time (and money) dyno tuning it to perfection. You'll need an AEM EMS, or a Greddy e-manage to control spark timing.

thanks for reading my novel

check out the other thread I mentioned before, this should give you a lot more info -

Go here: https://www.s2ki.com/forums/showthread.php?...threadid=101445

 

[QUOTE]Originally posted by wicky
[B]

 

that's a good question.... I did a little digging, (i grew up with a family of Ford dragsters, I don't now how i ended up loving F1 and Honda.... black sheep....)

here are a couple examples of what is run at nascar: notice how the compression ratio is not that high, and the stroke is short. These motors are built to rev:

remember these cars have wild cams that would NOT be driveable on the street, but interesting to note because I think the cam on these motors is probably the one part that the biggest influence on power.

Dale Jarrets car:

Ford 5.7 liter. bore: 104.775mm (!!!!) stroke: 84.836mm Power: 780hp @ 8500 (!!!!) rpm

Steve Park:
5.7 liter similar bore and stroke as above. Compression 12.0:1 Power: 725hp @ 7800 rpm Torque: 535@ 6000 rpm

-torque peak over 6000 rpm on a V8! this is s2000 land! we have half as many cylinders, why not a reasonable 250 pounds of torque at 6000? (at the wheels of course )

Dave Reed 5.7 liter
don't know exact dimensions, similar to above Compression 9.5:1
Power: 680hp @ ?

for reference the f20c bore and stroke is 87mm x 84mm and has a 11:1 CR

I think the key here is a more a agressive cam, ported head, enlarged pistons, advanced timing and a 10,000 rpm redline.... any takers? I don't think the f20c has much space to go to 104mm, but maybe 92 or 94? 97?

I think there is power to be had, lurking in this motor.....

 

[QUOTE]Originally posted by cjb80
[B]it looks like 12.16:1 when I zoom in.. think that's the compression??