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Old 11-22-2003, 02:15 PM
90redgt 90redgt is offline
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How much power can i expect from this engine combo?

I got 6,000 dollars saved up and i'm going to use it to order a long block from coast high. Here's what i've been thinking of:

306 street-figther
Cam: .493/.510 lift int./exh. duration at 279/282
AFR 185's
with a Performer RPM II
Of course with a Diablo chip and Bassani long-tubes,shorty X-pipe (no cats) and bassani catback. oh yeah and 24lbs./hr injectors

Just curious if someone could give me ballpark number, HP/Trq?
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Old 11-24-2003, 10:18 PM
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Re: How much power can i expect from this engine combo?

its hard to say but if i were to make a reasonable guess. id say a lil over 50.
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Old 11-24-2003, 11:56 PM
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Lil over 50? that is incredibly short to the point of it not even being a conservative estimate. those heads are claimed to add a hundo by themselves. I'd say a frugal 130hp and i have no idea regarding torque.
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Old 11-25-2003, 05:32 AM
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You're probably going to be looking at over 300 rear wheel horsepower with a good tune and a manual trans. I'd highly recommend an adjustable fuel pressure regulator and a good dyno tune, that can mean a 10-20 horsepower difference, not to mention setting your A/F ratio is good insurance. Also, don't scrimp on your valvetrain, get roller rockers to replace your stock crappy stamped ones.

I'm assuming you're looking at high RPM with that intake/head combo? If so check out a DSS 306 long rod shortblock or if not check out their bullet 331. I was gonna go with one of these but my Dad took care of the car for me while I'm in Germany.
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Old 11-25-2003, 06:37 PM
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AFR 185's are kinda big for that motor w/o FI
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Old 11-26-2003, 10:26 AM
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Re: How much power can i expect from this engine combo?

Quote:
Originally Posted by GTStang
AFR 185's are kinda big for that motor w/o FI
without F/I? assuming you mean fuel injection, yes it will be fuel injected.
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Old 11-26-2003, 10:43 AM
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He means Forced Induction

Blower, Turbo

185s are too big, go with the 165
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Old 11-26-2003, 12:40 PM
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Re: How much power can i expect from this engine combo?

Quote:
Originally Posted by SkylineUSA
He means Forced Induction

Blower, Turbo

185s are too big, go with the 165

Ding! Ding! Ding!!!!! HiFlow tell Skyline what he's won!!!!!!!!
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Old 11-26-2003, 01:17 PM
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Re: Re: How much power can i expect from this engine combo?

Thank you GTStang!
Yes, That's right folks. SkylineUSA, you my friend are the proud winner of an all expenses paid trip to grand Ol England! You and a guest will be staying at the breath taking hotel chez, free of charge, but the use of the in room Jacuzzi and dry bar is extra. Enjoy!
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Old 11-26-2003, 01:31 PM
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SWEET !!!
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Old 12-03-2003, 08:21 AM
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That's why I asked if he was going for high RPM. With that cam and those heads a 306 would be good in the 7000 -7500 rpm range, but would really need a bigger cam.

I agree w/ 165s for normal street RPM, but would also switch from the Performer RPM II intake to something w/ longer runners, otherwise he'll lose some torque.
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Old 12-03-2003, 10:35 AM
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Good Point.
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