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post #1 of 10 (permalink) Old 11-28-2014, 10:05 AM Thread Starter
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Building an motor

Any one have any experience with power gains from the 09-11?

I have a "drag bike" (I know, I'm a redneck) and looking to bump up the power some.

I'm looking at doing head/cams (Web .400/368)

Pistons will be stock bore, ether Wossner 14.1:1 or JE 13.8:1

I will also be doing Carpenter Racing valve springs, and APE head studs.

I will be sending my crank out to Marine Crankshaft to have the "oil mods" done, being that I Rev it to 14,000 on a regular bases.

The head will be getting ported by a close friend of mine.

The bike in its Current form made 164hp with a "cleaned up" head, a Brock's sidewinder pipe, BMC filter, factory pro stacks, Dyno tuned through the ECU on 93 pump gas (10% ethanol). That power was with a swing arm that puts the bike wheelbase at 66" (11"ish over stock), And a Shinko hookup tire.

I'm just looking for any info on what kind of power I should see with the above mentioned items. Also interested if I should add a set of H beam rods to the build this winter, or if i would be safe at that power level with stock rods for this year. I will also be tuning the bike on a good oxygenated fuel such as VP MR-12.

Thanks in advance,
Kurt


P.S.
Please excuse my title.... A Motor*

Last edited by kurtthedurt; 11-28-2014 at 12:53 PM.
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post #2 of 10 (permalink) Old 11-28-2014, 11:27 AM
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Re: Building an motor

Lemme get them stock cams bruh

Seriously, just a thought though, might as well go with the rods since you are in there as it would be a shame not to get everything you can from that/those compression options transmitted to the wheel especially if they are lighter than the stock rods.
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post #3 of 10 (permalink) Old 11-28-2014, 08:38 PM
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Re: Building an motor

don't need the springs there is a better cam set up if you are using stock bore just shave the head (will have the same hp/torque as the pistons). if you are getting the crank done. and want to purchase pistons go big. or stroke it. (;spend your money smart)

go 13.8 cr if you street fuel at all 14.0 if you are consistant with the fuel. I would also recommend mrx01 instead of mr12

I have done a few 09-14 engines

jason
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post #4 of 10 (permalink) Old 11-28-2014, 11:25 PM
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Re: Building an motor

Quote:
Originally Posted by Karns Performance View Post
don't need the springs there is a better cam set up if you are using stock bore just shave the head (will have the same hp/torque as the pistons). if you are getting the crank done. and want to purchase pistons go big. or stroke it. (;spend your money smart)

go 13.8 cr if you street fuel at all 14.0 if you are consistant with the fuel. I would also recommend mrx01 instead of mr12

I have done a few 09-14 engines

jason
Everything Jason said!

MRXO1 burns clean....love that stuff.
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post #5 of 10 (permalink) Old 12-04-2014, 06:52 PM
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Re: Building an motor

Quote:
Originally Posted by Karns Performance View Post
don't need the springs there is a better cam set up if you are using stock bore just shave the head (will have the same hp/torque as the pistons). if you are getting the crank done. and want to purchase pistons go big. or stroke it. (;spend your money smart)

go 13.8 cr if you street fuel at all 14.0 if you are consistant with the fuel. I would also recommend mrx01 instead of mr12

I have done a few 09-14 engines

jason
Hey Karns, are there any differences between the 09-11 engines & 12-14 ones? I see their PN's are different but have you seen any visual modification?
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post #6 of 10 (permalink) Old 12-04-2014, 08:20 PM
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Re: Building an motor

yes there are some diff windage holes are larger, pistons are lighter, exhaust cam has a diff profile, and exhaust valves are now stainless. there is some other things to. but when it comes to modifying you use all the same stuff.

jason
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post #7 of 10 (permalink) Old 12-20-2014, 10:37 AM
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Re: Building an motor

Quote:
Originally Posted by kurtthedurt View Post
Any one have any experience with power gains from the 09-11?

I have a "drag bike" (I know, I'm a redneck) and looking to bump up the power some.

I'm looking at doing head/cams (Web .400/368)

Pistons will be stock bore, ether Wossner 14.1:1 or JE 13.8:1

I will also be doing Carpenter Racing valve springs, and APE head studs.

I will be sending my crank out to Marine Crankshaft to have the "oil mods" done, being that I Rev it to 14,000 on a regular bases.

The head will be getting ported by a close friend of mine.

The bike in its Current form made 164hp with a "cleaned up" head, a Brock's sidewinder pipe, BMC filter, factory pro stacks, Dyno tuned through the ECU on 93 pump gas (10% ethanol). That power was with a swing arm that puts the bike wheelbase at 66" (11"ish over stock), And a Shinko hookup tire.

I'm just looking for any info on what kind of power I should see with the above mentioned items. Also interested if I should add a set of H beam rods to the build this winter, or if i would be safe at that power level with stock rods for this year. I will also be tuning the bike on a good oxygenated fuel such as VP MR-12.

Thanks in advance,
Kurt


P.S.
Please excuse my title.... A Motor*


I'm curious what all that work is going to cost you and how much of gain are you expecting? I'm trying to figure out if it's worth building up an engine for the track and just wondering what kind of gains folks are seeing for how much investment?
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post #8 of 10 (permalink) Old 12-20-2014, 09:51 PM
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Re: Building an motor

depends on what you are looking for and the cost vs gain

jason
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post #9 of 10 (permalink) Old 01-04-2015, 05:07 PM
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Re: Building an motor

Talk to Eric at:

www.edrperformance.com
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post #10 of 10 (permalink) Old 01-05-2015, 08:18 AM
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Re: Building an motor

Since your extended and by your avatar I take it your a drag racer. The people at EDR are excellent but their focus is more on road-bikes not drag bikes.

Try some of the East coast people like SAE Outlaw Performance, HTP Performance, Knecum Performance Engines, Carpenter Racing, Cycle Concepts, and RC'c Performance just to name a few.
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