Anyone used this cam? (G3 XFI 261 HR15)

G3 XFI 261 HR15
COMP Cams® - Cam Details
I am thinking about using this cam in my LM7 383 build.
Anyone used this cam or have experience with it?

Thanks,
Tyler

you could probably go a bit bigger with a 383 than that cam...you going fi or n/a?

I agree, bigger would be better.

Quote:

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Originally Posted by blackout

G3 XFI 261 HR15
COMP Cams® - Cam Details
I am thinking about using this cam in my LM7 383 build.
Anyone used this cam or have experience with it?

Thanks,
Tyler

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Hey Tyler. :lol: That cam is waaaaaaaaaay too small. A few more things...what heads? What intake? What other mods?

haha. I could get a smoking deal on a new one thats why I asked. :lol:

Sorry now this is kind of overlapping on my other thread in the conversion section.

LM7 bored and stroked to 383ci (forged internals) 10:1 compression
243 heads
TBSS 90mm intake swap
Shorty headers w/ stock y pipe. (may be cut into true duals at a later date)
E-fans


so what do you think? like a Thunder Racing TR220-114?
I am wondering about the longevity of a cam like this? and the other valve train parts affected by it.

Quote:

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Originally Posted by blackout

LM7 bored and stroked to 383ci (forged internals) 10:1 compression
243 heads
TBSS 90mm intake swap
Shorty headers w/ stock y pipe. (may be cut into true duals at a later date)
E-fans


so what do you think? like a Thunder Racing TR220-114?
I am wondering about the longevity of a cam like this? and the other valve train parts affected by it.

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That combo will net you a pretty stout, torquey motor. Lower RPM power shouldn't be a problem, so lets see if we can figure out a cam that might not only accentuate the low end, but also scream up top.... As for longevity of the cam and valvetrain parts--it all revolves around the quality of valvetrain parts and the cam lobe design. PRC springs and the appropriate length hardened pushrods will be necessary.

I would think that a TR220-114 would be a good cam for that motor, but it would be on the smaller side of things, IMHO. With the compression ratio/intake/heads combo, I would think something near a 234/236 .592/.581 113+3 LSA.

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Originally Posted by txarkitekt

That combo will net you a pretty stout, torquey motor. Lower RPM power shouldn't be a problem, so lets see if we can figure out a cam that might not only accentuate the low end, but also scream up top.... As for longevity of the cam and valvetrain parts--it all revolves around the quality of valvetrain parts and the cam lobe design. PRC springs and the appropriate length hardened pushrods will be necessary.

I would think that a TR220-114 would be a good cam for that motor, but it would be on the smaller side of things, IMHO. With the compression ratio/intake/heads combo, I would think something near a 234/236 .592/.581 113+3 LSA.

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How streetable would a cam of size be? The truck is my daily driver and I want to use my stock torque converter if possible.

HAHAHA--with those mods and a stock TC??? Look into the Circle D 11" 3000 stall for $375.

I would not run that healthy of a cam on a stock converter. It would need to be significantly smaller....maybe like a 216/218 .542/.535 114+2 LSA cam.

Quote:

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Originally Posted by txarkitekt

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216/218 .542/.535 114+2 LSA

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Very similar to the one I told him about. I said that cam or the TR220.

I talked to john at thunder racing and he seemed to think the TR220-114 would be ok with the stock converter. If I was to go with say a 2500-3000 stall converter would it affect my fuel economy?

are you going to be towing at all? because if not i really see no reason not to get a higher stall

Quote:

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Originally Posted by jcormier89

are you going to be towing at all? because if not i really see no reason not to get a higher stall

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I do plan on towing with my truck. It is my snowmobile hauler on the weekends.

I've got a never installed TR 220-114 still in the box. Send me a PM if you're interested.