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big cam question

Old Apr 9, 2012 | 09:17 PM
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hey all anyone try this cam ? currently i have a ls2 bottom end forged and ls3 top end. i really want a street 3/4 race cam. i dont care about driveablity. 248/254 - .615/.623 - 110 lsa
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Old Apr 9, 2012 | 09:23 PM
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Originally Posted by tom01ss
i dont care about driveablity. 248/254 - .615/.623 - 110 lsa
This will be a good trait to have with this cam!
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Old Apr 10, 2012 | 03:12 PM
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IF you have an A4 it will require much trial and error to get the driveability down--Things like idle-surging-flaring-hunting-dying will surface--Also with that big of a cam on an A4 a higher stall converter is practically a must --A stock converter won't hold at a stop light and it will take lots of brake effort to get it to stay put at the possible 850-900 required idle--On a 6 speed it won't be as bad--but be prepared in order to get the full benefit of the high duration your highest power will be up around 6500-6700 and your usable HP and TQ band will be moved higher as well--- Stock is around 2800-6000 and i would guess that cam's band will be more like 4000-6700----
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Old Apr 10, 2012 | 06:20 PM
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tblu92, what is flaring? I see some tables in HPTuners for it.
Thanks
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Old Apr 10, 2012 | 08:08 PM
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To be honest, that's not a good cam for the LS3 heads at all. Find someone with experience specific to the LS3 heads and get the right cam.

Just my $.02

Last edited by WKMCD; Apr 10, 2012 at 08:15 PM.
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Old Apr 10, 2012 | 08:22 PM
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Call Texas Speed and Performance, also another good place is the LS1Tech forum.
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Old Apr 10, 2012 | 10:23 PM
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will im 6 spped 373. im looking to push car to edge of max performance. aka no cry baby stuff
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Old Apr 13, 2012 | 12:36 PM
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Flaring is like surging --surging is when it hunts and the RPM's go up and down faster --Flaring is where the RPM's flare up and stay there for a long time--
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Old Apr 13, 2012 | 01:43 PM
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Originally Posted by tom01ss
hey all anyone try this cam ? currently i have a ls2 bottom end forged and ls3 top end. i really want a street 3/4 race cam. i dont care about driveablity. 248/254 - .615/.623 - 110 lsa
If you dont care about driveablity then you have made a good choice or why not even bigger ??

If you want the best cam for your setup you need a different cam.
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Old Apr 13, 2012 | 02:32 PM
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Originally Posted by tblu92
Flaring is like surging --surging is when it hunts and the RPM's go up and down faster --Flaring is where the RPM's flare up and stay there for a long time--
I have a big cam 440ci in my 02 Zo6. I recently installed Siemens 60lb injectors because the 38 lb injectors were at 105% duty cycle.
I did put all the new injector specs in my tune.(HPTuners) I am having a idle hunting problem when I come to a stop. It drops to 600rpm and jumps up to 1400rpm a few time before it settles. Also I have bucking at light throttle between 1200-1800rpm's. I don't know if it was the right thing to do but I added first 10% to the RAF and it help a little so I added another 10%. Seems I when I come to a stop if I put it in neutral and let the clutch out the idle settles right down to 950. Any Ideas?
Thank for any help!
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Old Apr 13, 2012 | 02:48 PM
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did you replace the injector o-rings with new. sounds like cam surge
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Old Apr 13, 2012 | 02:50 PM
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im planning on doing the whole 102 setup and porting will follow of course. i want a cam that makes good solid power and i dont care about driving issue i like the radical stuff
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Old Apr 14, 2012 | 08:54 AM
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Thats a huge cam for those small cubes, go with a g6x3 youll see 450+ easily with great driveability
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Old Apr 15, 2012 | 10:20 PM
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Originally Posted by tom01ss
will im 6 spped 373. im looking to push car to edge of max performance. aka no cry baby stuff
what is your question about max performance
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Old Apr 15, 2012 | 10:33 PM
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Yep it's only a 3/4 race cam, corner store stuff.....maybe 104 - 106 LSA?
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Old Apr 16, 2012 | 08:00 AM
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Originally Posted by CTD
Yep it's only a 3/4 race cam, corner store stuff.....maybe 104 - 106 LSA?

GMs Cup cam

239/251 570/570 106

Old cam design but a darn reliable and great power

Used on LS6s, LS2 and now LS3s and LS7s
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Old Apr 16, 2012 | 12:43 PM
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Originally Posted by tom01ss
did you replace the injector o-rings with new. sounds like cam surge
Yes, new o-rings. I had to get the thicker ones to fit with the Ls7 manifold.
Thanks.
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