Thoughts? Time for a bigger cam...
Thoughts? Time for a bigger cam... Time to upgrade the goods! 
Currently have a custom PatG spec'd cam (219/227 .600ish lift) made specifically for the STOCK torque converter. It did an excellent job at what is was designed to do, as it gained power literally everywhere and picked up 45rwhp and 26lbtq.
Two months down the road and I've purchased a 3600 stall and am in the market for a bigger cam (I initially thought I'd be done modding after the cam...riiiight
).
After talking to multiple members, sponsors, etc, I think I've decided to go with something along the lines of a custom 228/232 .600ish lift 111-113 lsa (hasn't been spec'd yet so I'm not positive on the details exactly).
Just wondering what your thoughts are? I think it's a great power/price ratio considering I'll be able to keep my hardened 7.425 pushrods and basically new Comp 918 springs (only 1k miles w/ supposedly new design that is good for .625 lift, but who knows).
With the 3600 stall I figure this seems to be a fairly good setup for a daily driver that likes to run whenever given the chance. As always, I think there are a lot of knowledgeable people on this forum, and I'm absolutely open to opinions/comments.
Currently have a custom PatG spec'd cam (219/227 .600ish lift) made specifically for the STOCK torque converter. It did an excellent job at what is was designed to do, as it gained power literally everywhere and picked up 45rwhp and 26lbtq.
Two months down the road and I've purchased a 3600 stall and am in the market for a bigger cam (I initially thought I'd be done modding after the cam...riiiight
).After talking to multiple members, sponsors, etc, I think I've decided to go with something along the lines of a custom 228/232 .600ish lift 111-113 lsa (hasn't been spec'd yet so I'm not positive on the details exactly).
Just wondering what your thoughts are? I think it's a great power/price ratio considering I'll be able to keep my hardened 7.425 pushrods and basically new Comp 918 springs (only 1k miles w/ supposedly new design that is good for .625 lift, but who knows).
With the 3600 stall I figure this seems to be a fairly good setup for a daily driver that likes to run whenever given the chance. As always, I think there are a lot of knowledgeable people on this forum, and I'm absolutely open to opinions/comments.
Last edited by squirts11; Apr 14, 2010 at 12:10 AM.
That's why I'm opting for something that is still very streetable with the right tune and my setup (3.73s, 3600 stall), and will be a worthwhlie gain for the money of a new cam.
Anybody else have thoughts on a different set of cam specs?
Yeah talk to Pat and seriously look at the new EPS lobes. I don't have any personal experience with them but from what I have read on here guys are having great luck with them. I am gonna look at them hard when I can finally do my LS2 402...
Actually, the cam I have now was made by Geoff at EPS using the lobes you mentioned. The high-rpm stability, good power, and reduced stress on the valvesprings made them an appealing choice.
Last edited by squirts11; Apr 14, 2010 at 06:26 AM.
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For the hp gains, the price/gain ratio is fantastic. Heads might have to wait a while.
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Why quit going with what works? You seem so happy with your current cam. Call Geoff directly, he is one of the few people who really know how to spec cams for these cars. Just tell him what you have, what you upgraded, and where you want to go.
Geoff @ EPS mentioned something along the lines of a 226/334 .600ish lift on 113ish.
What are everyone's thoughts on those specs (a rough estimate of what the specs are) compared to the 228/232 I mentioned earlier?
What are everyone's thoughts on those specs (a rough estimate of what the specs are) compared to the 228/232 I mentioned earlier?
That is a great suggestion. My dyno software likes it a little bit better on a 112+2, but that should give you a very very fat torque curve, and peak just over 6000 rpm but carry well to 6500.
It's on a 115+4, but still has a decent chop at idle (surprised me actually), since the idle speed was kept low (550rpms). I'd like the new cam to make it worth my while to swap, maybe 20-25hp? Does that seem unreasonable with the two cam choices I've mentioned?
On The Tree
Joined: Nov 2008
Posts: 105
Likes: 0
From: Fort Worth, TX
Yes, I meant 226/234, as I suppose I'm not quite ready to go with a 300+ duration yet...
It's on a 115+4, but still has a decent chop at idle (surprised me actually), since the idle speed was kept low (550rpms). I'd like the new cam to make it worth my while to swap, maybe 20-25hp? Does that seem unreasonable with the two cam choices I've mentioned?
It's on a 115+4, but still has a decent chop at idle (surprised me actually), since the idle speed was kept low (550rpms). I'd like the new cam to make it worth my while to swap, maybe 20-25hp? Does that seem unreasonable with the two cam choices I've mentioned?
Honestly you're not going to gain much at all from a 220 duration cam to a 226ish duration cam. 5-10 hp would be my guess. To gain 20-25hp you're better off keeping your current cam and getting a set of better heads, which could gain 20-50hp.
I'm not planning on the 226/234, that was just a suggestion I got yesterday. I'm going to look at a local set of 243s this weekend that are listed very reasonably. If they're in good enough shape, I'll pick them up and mill, get a decent vj, bowl blend, and port the runners. After getting the flow numbers I'll have a new cam spec'd.
I'm still wanting something that's going to produce a lot of area under the curve, generally the flatter the torque curve, the better. At the very least I'm leaning towards something around 228/232 .600ish lift 111-112.
I'm still wanting something that's going to produce a lot of area under the curve, generally the flatter the torque curve, the better. At the very least I'm leaning towards something around 228/232 .600ish lift 111-112.
I'll make my recommendation public..
230/238 110+2 on EPS lobes.
Remember you have to work with the comp 918's you have, and those would need to be shimmed for those lobes. Anything more aggressive like an XFI or LSL and you are going to have to upgrade to duals.
230/238 110+2 on EPS lobes.
Remember you have to work with the comp 918's you have, and those would need to be shimmed for those lobes. Anything more aggressive like an XFI or LSL and you are going to have to upgrade to duals.
Ooooo, that sounds tasty. I know that'll pull hard up top and sound like it's pissed off. I guess a big concern would be PTV issues since I plan on milling and/or using thinner head gaskets.
On The Tree
Joined: Nov 2008
Posts: 105
Likes: 0
From: Fort Worth, TX
The XFI lobes were intended for the new 918 springs, I run them with my set-up...230/236 XFI 113+2 imo if you're milling the heads to bring static over 11:1 and the wider lsa will flatten the torque curve
