thinking about a cam

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Aug 31, 2013 | 01:38 PM

#21

momo20

Thread Starter

Safety Car

Joined: Apr 2004

Posts: 3,532

Likes: 79

From: pueblo co

Quote:

Originally Posted by sfc rick

If doing the cam, then get a new harmonic balancer pinned just in case you decide to FI it later on. Search "Pinning the balancer" for info.

http://www.aacorvette.com/performanc...products_id=67

I like the ideal of pinning it to start with..should of came that way stock..i know my stealth r/t tt was pinned from the factory..but maybe that was due to the twin turbo's it came with ?

Aug 31, 2013 | 02:14 PM

#22

Pozesd99'

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Joined: Aug 2013

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Usually you only need to pin the crank when u supercharge no?

Aug 31, 2013 | 02:20 PM

#23

sfc rick

Le Mans Master

Joined: Nov 2009

Posts: 6,119

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From: Huntington tx

Quote:

Originally Posted by momo20

wow so everyone's that has posted videos your car's sound amazing...as far as for what I plan on using the car for..maybe some auto cross, I don't for see my self going to a blower in the future at least not on this motor, so with that said just drive the car and have fun with it, what is the main difference between a 112 lsa and a 114 lsa and so on?

112 lsa

Last edited by sfc rick; Aug 31, 2013 at 02:24 PM.

Aug 31, 2013 | 02:34 PM

#24

mtndv8

Drifting

Joined: Jun 2008

Posts: 1,317

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From: McCall Idaho

Quote:

Originally Posted by robert miller

The cam ARUN has he calls it , his stage 3 cam. Making great power and sounds great also. Rick has it in his motor with a ysi on the stock motor making almost 1,k rwhp with it.

Robert, Would you know the numbers for his "stage 3"?

I have a GMPP ASA cam I'm considering installing this winter looking for 380-400rwhp/rwtq through my A4. I thought about the GMPP Hot cam but from my reading and the sound clips I've heard I liked the ASA better but these are both a little older in design tech.
Now I'd like to hear more about Arun's...

FYI, reference numbers for the OP...

GMPP Hot cam: 218/228 .525 112lsa
GMPP ASA: 226/236 .525 110lsa

Good luck with your choice.

Aug 31, 2013 | 05:04 PM

#25

steveovette

Instructor

Joined: Apr 2009

Posts: 228

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From: Ottawa Ontario

Very simplified terms the lower the number the lumpier the idle.
Generally all things being equal a 112 will idle rougher than a 114.
Just a note on the GMPP ASA cam, its not recommended for A4 equipped cars as vacuum could be an issue with the 110 LSA

Aug 31, 2013 | 05:28 PM

#26

momo20

Thread Starter

Safety Car

Joined: Apr 2004

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From: pueblo co

Quote:

Originally Posted by steveovette

thanks steveo for that bit of info.

Aug 31, 2013 | 05:48 PM

#27

mtndv8

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Joined: Jun 2008

Posts: 1,317

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From: McCall Idaho

Quote:

Originally Posted by steveovette

Certainly not trying to hyjack the thread OP but would like to follow up on Steveo's comment as it does apply somewhat to your original question.

Steveo, all the reading I've done, and honestly I'm still learning, this is the first time I've read this. Could you explain what you mean? I'm not seeing a logical connection between vacuum and an A4 and 110 lsa?

Thanks