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  #16 (permalink)  
Old 02-22-2013, 11:12 PM
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Quote:
Originally Posted by vinniekq2 View Post
nascar 360s make around 900 hp. 402 is bigger and you have fuel injection and alcohol.
not cheap
I know, this stuff is expensive. Do you think FT pistons would work best instead of domes with the 59cc heads? I done a compression calculation using 2VR FT pistons and only came up with around 11:1 which I'm not sure alcohol will like. That was using a .040 compressed head gasket thickness though, I could go thinner I suppose.

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Old 02-23-2013, 12:01 AM
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Originally Posted by prumora1 View Post
flat top pistons have a better flame travel giving you a better complete combustion of fuel, that in turn equals more hp and better flow. plus what you lose in compression from not having the dome you can make up for in your gasket if you want

put a really good 9 way adjustable timing set in it so if you need you and take that 108 cam down around 102 to 100 if needed for banking.

use a electric water pump and a crank driven fuel pump with a emergency shutoff and by-pass

use a magneto for ignition, you going to need all the output and reliability you can get

if you don't have the hilborn yet, I would you a duel rons flying toilet injection, more reliability and better adjustability plus its not remanufactured from 40 year old parts and will cost you the same money
Fire slotting domes with Alky gives you a better solution.

I agree with everything else you posted.The thing with Hilborn is it is a combo between the balance/set-up of the car,the gearing of the car per track,and the correct pill size.A weather station and a log per track helps.Depending on how sharp of a tuner you are,that data might take sometime to gather.You want to change one element at a time.Read the plugs constantly.Leakdown every wk as apart of normal maintenance.Valve lash every wk.Catch a problem before it becomes one.Good data will pay-back a thousand times over.Open up the ring gap the same way you would with any other power adder.

We have never used a aftermarket block in any of our 9.90 or 10.90 cars where in both we have used Alky. They get freshen up at the end of the season along with the above routine.
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Old 02-23-2013, 12:30 AM
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Originally Posted by 1Gary View Post
Fire slotting domes with Alky gives you a better solution.

I agree with everything else you posted.The thing with Hilborn is it is a combo between the balance/set-up of the car,the gearing of the car per track,and the correct pill size.A weather station and a log per track helps.Depending on how sharp of a tuner you are,that data might take sometime to gather.You want to change one element at a time.Read the plugs constantly.Leakdown every wk as apart of normal maintenance.Valve lash every wk.Catch a problem before it becomes one.Good data will pay-back a thousand times over.Open up the ring gap the same way you would with any other power adder.

We have never used a aftermarket block in any of our 9.90 or 10.90 cars where in both we have used Alky. They get freshen up at the end of the season along with the above routine.
Thanks Gary1
Currently I have 3 SBC blocks. Two of them are 010 and one is 010/020. Two of them would need to go to .060 over and one to .040 to cleanup. Not having to go aftermarket will save some $$ of course. We will be gathering info for setups at each track this year as we just ran a few times at the end of last season. Alot of this style of racing is the setup & driver instead of raw horsepower.
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Old 02-23-2013, 03:21 AM
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I almost forgot.I don't like Scat cranks for prolonged high RPM use.The oval track deal and the bottom end means ton more on oval track racing than drag racing.
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Old 02-23-2013, 07:00 AM
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Quote:
Originally Posted by S10 Racer View Post
I know, this stuff is expensive. Do you think FT pistons would work best instead of domes with the 59cc heads? I done a compression calculation using 2VR FT pistons and only came up with around 11:1 which I'm not sure alcohol will like. That was using a .040 compressed head gasket thickness though, I could go thinner I suppose.
CR has to be calculated for the heads used.Im not sure of the budget you have in mind? The heads are very expensive.The pistons will likely have domes.Rev kits are likely required.
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