cam noob I'm running a 2001 SS Camaro M6 with bolt-ons. I'm planning on doing a cam only swap here in a few weeks. I'm looking at a Comp custom grind of 230/232 .592/.595 on XER lobes with a 110LSA+2. Would this be too large for stock heads? Will 7.4" pushrods be sufficient for this setup? I plan on using the comp 918 springs also. I don't want to remove the heads to check the PVC, so I want to just be 100% sure with whatever cam I purchase, that I won't have problems there. From experienced cam people, what advise do you have for me here? I currently dyno'd 350rwhp/364ft-lb on a DynoJet and would love to see 400rwhp. Would this be near possible with a cam only setup? Thanks for ANY input ANYBODY has to say. I've only had my f-body for 3 months and am trying to figure out what's best. I don't have the money for a head change currently, but I will have the car tuned ASAP after the cam swap. I don't understand the people that drive around un-tuned... |
port and polish your throttle body.you are heading in the right direction.start searching for a good tuner that knows their LS tunes. |
I've got a guy that has supposedly tuned hundreds of LS1s and should be able to make the best of it for me. I'm more concerned with that size being safe to go with. I will be daily driving the car, and I know everybody has their own idea of what DD is, but I'm only 20 and like annoying stuff for now. I'm a big DIY person, but I'm not sure how good of a job I'd be at porting the TB =/ |
That cam size is FINE and the springs your going to use should be sufficiant. 7.4 pushrods will work but it's always a smart thing to check anyways. Porting your TB is easy look for some more info on it. Or have someone on here do it for you. |
What happens if I am a little too short on the pushrod length? I think with this cam most people would be using a 7.425"-ish. Thanks for the input! Reassurance always gives you a little more confidence before you tear into something that you've never been in :nod: |
A lot of noise and possible damage in the long run if you guess really short. To best cover your bases, get an adjustable PR, and a couple different lengths of PRs, and just return what you didn't need. |
alot of people making 400 hp with #241s.I think there a sticky on proper push rod length ..you want .050 - .080 lifter preload. install push rod and rocker,hand tighten rocker arm bolt.when the bolt is finger tight and the push rod dose not spin ,that is 0 lash.you want to torque the bolt to 22lbs. if it takes more than 1 3/4 turns of the bolt to reach 22lbs the push rod is too long,less than 1 1/4 turns the push rod is too short.use a stock push rod to test for proper length,or get a adjustable push rod checker. |
Originally Posted by garygnu
(Post 13224095)
use a stock push rod to test for proper length,or get a adjustable push rod checker. |
That cam will be a good cam for you, and 7.4 push rods will be ok, just install it and enjoy. |
you are right you want the lifters for #1 on the base circle of the cam. you only have to measure for 1 cylinder. you are only using the stock PR for checking proper length,than order some good push rods and springs from TSP. |
Definetly measure man. You don't want to fuck your motor up just cause your in a hurry and didn't want to take the time to measure. Im sure you could pick up the tool fairly cheap, and thats money well spent in my book. |
Originally Posted by samb0ness
(Post 13222558)
I've got a guy that has supposedly tuned hundreds of LS1s and should be able to make the best of it for me. I'm more concerned with that size being safe to go with. I will be daily driving the car, and I know everybody has their own idea of what DD is, but I'm only 20 and like annoying stuff for now. I'm a big DIY person, but I'm not sure how good of a job I'd be at porting the TB =/ Did you end up doing the cam in your original post or the XFI/XER combo I told you about? |
Originally Posted by samb0ness
(Post 13224393)
I thought that the stock PRs deformed easily? Doesn't seem like they'd be a good check for proper length. |
Originally Posted by samb0ness
(Post 13223783)
Reassurance always gives you a little more confidence before you tear into something that you've never been in :nod: |
Originally Posted by samb0ness
(Post 13222334)
Will 7.4" pushrods be sufficient for this setup?....I don't want to remove the heads to check the PVC, so I want to just be 100% sure with whatever cam I purchase, that I won't have problems there
Originally Posted by Austinma62
(Post 13225347)
Definetly measure man. You don't want to fuck your motor up just cause your in a hurry and didn't want to take the time to measure. Im sure you could pick up the tool fairly cheap, and thats money well spent in my book. |
You don't have to take the heads off to measure PTV clearance. When you put the cam in degree it. Put the two light valve springs on #1 cylinder and do it that way. It would be easier than pulling the heads off. A cam degree kit is about $135. They do sell a special LS1 tool to help turn the motor over. I don't know how much that is. |
I would run doubles on an X-ER lobe. They are very agressive. An LSL lobe I think you be ok on a beehive...... |
Originally Posted by gomer
(Post 13232811)
Your in good hands with your tuner :D Did you end up doing the cam in your original post or the XFI/XER combo I told you about? |
Originally Posted by m_donze
(Post 13252147)
you're alive! and is the OP the sam i know? |
Originally Posted by samb0ness
(Post 13252748)
Ha yessir. I'll have my cam and Gomer tune here before too long :D And when we racing for your woman? I believe she belongs to me for a night if i remember correctly. I'd hate to have to up it to 2. :devil: |
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