interesting cam
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interesting cam
I have found another cam that is almost like the trex. http://www.ls1speed.com/catagory.cfm...in%20/%20Heads It is a custom grind from comp # S17 238/244 .605/.612 @110 as far as i understand, the higher the dur, the higher in the rpm band you will make power.?? And the more lobe overlap, the wider the power band..?? What do you guys think
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I have found another cam that is almost like the trex. http://www.ls1speed.com/catagory.cfm...in%20/%20Heads It is a custom grind from comp # S17 238/244 .605/.612 @110 as far as i understand, the higher the dur, the higher in the rpm band you will make power.?? And the more lobe overlap, the wider the power band..?? What do you guys think
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I have that cam. I only have 3 dyno pulls and 10 passes with it and the tfs heads. still have to play with the tune a little bit. The times in my sig are off a footbrake and the stall/gear are a little small for this combo. My times will only get better, but I feel it was a pretty good start.
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I have found another cam that is almost like the trex. http://www.ls1speed.com/catagory.cfm...in%20/%20Heads It is a custom grind from comp # S17 238/244 .605/.612 @110
JPH is right, that is a whole lot of cam. It has 21* of overlap, so you can almost guarranty you'll need to lose your MAF and go with a speed density tune for any sort of drivability. Also, unless you install it on a 106* Intake Center Line, the peak power will be well after what an LS6 or FAST manifold will 'tune' to by design. Also, plan on 4.10 gears or a 4500 or so stall to work with that cam.
In a nut shell, I hope you have 'racecar' in mind if that's what cam you want. Lots of people will tell you that "it's all in the tune" or that "any cam can be daily driven with a good tune", but the truth is that the cam is going to work against your tuner. At this level, its difficult to get decent street manners.
Above all, if its what you are willing to deal with (and fund as far as supporting mods go) then, you'll be happy. Otherwise, I'd look at smaller cams.
Sorry for the long rant, and good luck!
Hammer
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Thanks for the help, I do want a big cam and am willing to deal with it but maybe it is a little bit to much. What would be a good size you recomend. I have all the bolt ons besides the fast intake and tb. I have p&p heads with prc dual springs.
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I thought someone else might chime is with a recommendation, but since not...
I like the G5X3 for a big streetable cam. While it has a generous amount of duration, it also has enough advance ground in to give better than average low & mid range for a cam of its size. The large split in exhaust duration makes it possible, without the ugly VE's that can result with smaller splits.
On the 114LSA it has 10 degrees of overlap, but tends to still peak rather high. Getting it on a 112LSA bumps the overlap to 14 degrees and brings the power peak down some (still about 6500).
Perhaps others will comment.
Hammer
I like the G5X3 for a big streetable cam. While it has a generous amount of duration, it also has enough advance ground in to give better than average low & mid range for a cam of its size. The large split in exhaust duration makes it possible, without the ugly VE's that can result with smaller splits.
On the 114LSA it has 10 degrees of overlap, but tends to still peak rather high. Getting it on a 112LSA bumps the overlap to 14 degrees and brings the power peak down some (still about 6500).
Perhaps others will comment.
Hammer
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Sure sounds cool though, and runs great (from 4000rpms on up)
I'm sure all the TRex and other 240+ guys will be here soon to tell me how wrong I am...
:flamesuit on:
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Very true - there is a camshaft pissing match always raging here. The lucky winner gets poor fuel economy, dismal street manners, and a whole lot of expensive supporting mods.
Sure sounds cool though, and runs great (from 4000rpms on up)
I'm sure all the TRex and other 240+ guys will be here soon to tell me how wrong I am...
:flamesuit on:
Sure sounds cool though, and runs great (from 4000rpms on up)
I'm sure all the TRex and other 240+ guys will be here soon to tell me how wrong I am...
:flamesuit on:
I totally agree with you, ive had a comp cams 238/242 and it was just horrible in all ways..idling at 1800, no power until 4 k and you had to spin the motor past 6500 at least.and this was with a tune..horrible street manners.
Now my car has a small 222/224 and underdrive pulley kit and it drives like stock and acts just like stock..why would you put a huge cam in a daily driver? Are the few peak hp # worth it?