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Old 11-24-2005, 04:06   #1 (permalink)
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how much HP

how much horse power do you guy`s think this engine will have at flywheel. block is 30 thou over,, block decked .............................................................................................4ma crank ground, linished ................................................................................................302 rods close and honed,arp rod bolts, hypertec pistons, molly rings, whole rotating assembly balanced ..............................................................................................cam,, crane hyd h-288-2 powermax,, duration @0.50 226 int,,,230 exh,,grose lift 528 int,,,536 exh,, lobe sep 110 degrees ...............................................................................................heads ,,2v closed chamber,, cc`d,, mild ports with a bit off the short turns and around bowls, 2v valves. 10.5:1 comp .................................................................................................. 4v headers ,, factory square bore manifold, 750 cfm, ................................................................................................... im mid way bolting this together for my cousin for his xt sedan, running a fmx what size stall should he run dominator`s recommend a 3000 stall with 3.5:1 rear . how much horse power and any other suggestions for this combo would be great .
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Old 11-24-2005, 04:20   #2 (permalink)
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Re: how much HP

A 3000 or 3500rpm stall should work well. Power guestimates? 350-400hp. What might kill it is the manifold. A weiand excellerator would be a better choice. Geez crane recommends a hell of a cruising rpm for that cam. 3200-3600rpm. Thats roughly 4.11 -> 4.5 diff gears.
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Old 11-24-2005, 04:25   #3 (permalink)
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Re: how much HP

I had that cam with 4v's in a ZF Fairlane, with a little bit more converter than stock (around 2000) and 3.5's it went 14.1@101. I thought it maybe had 300-350hp
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Old 11-24-2005, 14:33   #4 (permalink)
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Re: how much HP

350hp
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Old 11-24-2005, 18:33   #5 (permalink)
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Re: how much HP

3000-3400rpm converter, 3.5-3.7 gears and somewhere near 350hp at the motor with that manifold and carb.. maybe closer to 400 with those changes..
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Old 11-24-2005, 21:10   #6 (permalink)
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Re: how much HP

Quote:
Originally Posted by pracy
3000-3400rpm converter, 3.5-3.7 gears and somewhere near 350hp at the motor with that manifold and carb.. maybe closer to 400 with those changes..

Pracy, how do you gain Hp by changing convertor and gearing ? or do you mean other changes ?
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Old 11-24-2005, 21:29   #7 (permalink)
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Re: how much HP

well the converter and gearing is what I would use for this application.

I am guessing there might be some spare HP in converters though?... not sure
I was more talking about intake and carb. I reacon its limited near 350 with this intake/carb combo....

should have said
"maybe closer to 400 with those intake changes"
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Old 11-24-2005, 22:12   #8 (permalink)
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Re: how much HP

Quote:
Originally Posted by pracy
well the converter and gearing is what I would use for this application.

I am guessing there might be some spare HP in converters though?... not sure
I was more talking about intake and carb. I reacon its limited near 350 with this intake/carb combo....

should have said
"maybe closer to 400 with those intake changes"
no worries, hey I'm putting my car on the dyno tomoorow, interesting to see if its gained any with my minor mods and the motor is now run in.
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Old 11-25-2005, 00:04   #9 (permalink)
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Re: how much HP

There's no spare hp in the convertor strictly speaking. What happens a lot (and you reflect on it with what you're saying) is people set up a car combo and get it wrong; using maybe a convertor with too low stall speed. Change the convertor to the right one and there's an instant X No. of hp available.

The torque convertor does multiply torque; that's their job. But they can't do the impossible.
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Old 11-25-2005, 01:02   #10 (permalink)
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Re: how much HP

Yep I agree, the factory manifold will choke this motor. Weiand xcelerator for sure. I think you'll be nowhere near 400 ponies.

350 with a good manifold.

What ignition will he run?

It will definitely be a great torquey motor for laying black strips! Some lower gearing and you'd have a car running flat 13's with good traction.
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