Cam help...... what else is new?
Thread Starter
On The Tree
Joined: Sep 2018
Posts: 116
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Cam help...... what else is new? So I'm building my 96 LT4 corvette into a 383stroker with some spray see build here https://www.instagram.com/silver_surfer_lt4/ I got a set of 195cc heads and ordering the eagle 11:1 forged stroker kit as soon as the motor is out. I am trying to keep compression around 11.0-11.2:1 and stock RPM range and gears. But whats stressing me out the most is cam selection. So I'm hoping to get some input.
Originally I was looking at the comp cam XFI 07-468-8 https://www.summitracing.com/parts/cca-07-468-8 But my engine builder told me its to big with out me re-gearing that he wanted to put in the XFI 07-467-8 https://www.summitracing.com/parts/cca-07-467-8 I know almost nothing of cams. talking to others it ws suggested I get the zz409 cam https://tpis.com/products/6_cam160?v...28342563799112 or even 226/232 .578/.574 110 LSA. – 1900-6200 RPM from http://elliottsportworks.com/?page_id=32 anytime I talk to someone about the Comp cam my engine builder suggested I get "Thats an ok cam" I ask what they reccomend and they just say go with what your engine builder wants to put in. Someone told me with that cam I will be around 400whp with my build. I was shocked at I was shooting for about 50 more without spray. I am pulling out the engine tomorrow and its crunch time and I'm stressing over this. I have no idea what kinda gains between all these cams or how they respond comparatively or if there is something else I should try. Any input would be great.
Thanks
Originally I was looking at the comp cam XFI 07-468-8 https://www.summitracing.com/parts/cca-07-468-8 But my engine builder told me its to big with out me re-gearing that he wanted to put in the XFI 07-467-8 https://www.summitracing.com/parts/cca-07-467-8 I know almost nothing of cams. talking to others it ws suggested I get the zz409 cam https://tpis.com/products/6_cam160?v...28342563799112 or even 226/232 .578/.574 110 LSA. – 1900-6200 RPM from http://elliottsportworks.com/?page_id=32 anytime I talk to someone about the Comp cam my engine builder suggested I get "Thats an ok cam" I ask what they reccomend and they just say go with what your engine builder wants to put in. Someone told me with that cam I will be around 400whp with my build. I was shocked at I was shooting for about 50 more without spray. I am pulling out the engine tomorrow and its crunch time and I'm stressing over this. I have no idea what kinda gains between all these cams or how they respond comparatively or if there is something else I should try. Any input would be great.
Thanks
Thread Starter
On The Tree
Joined: Sep 2018
Posts: 116
Likes: 1
Mainly due to the **** gas here. I'm also trying to keep the stock rpm range. Keeping for longevity and not having to modify the oil system, ignition system ect to much. I was never supposed to build this engine. But I'm having balancing issues after switching to solid flywheel. Figure while it out I might as well do a lil build.
why would you need to modify the oiling system or ignition system?
I have a 396 I built in 2003 that I am still racing today....its been shifted at 6800-7k since it was built....was a mid 9second nitrous huffing daily driver...is now fixing to get turbo fed with the goal of 1000+ HP
I would highly suggest bumping compression to 11.5-12:1 (I normally suggest 12-12.5:1)....I think I saw that you have AFR195 heads....a 23x/24x cam with around .600 lift and a 110lsa will make good power and be easy on valvetrain parts.
I have a 396 I built in 2003 that I am still racing today....its been shifted at 6800-7k since it was built....was a mid 9second nitrous huffing daily driver...is now fixing to get turbo fed with the goal of 1000+ HP
I would highly suggest bumping compression to 11.5-12:1 (I normally suggest 12-12.5:1)....I think I saw that you have AFR195 heads....a 23x/24x cam with around .600 lift and a 110lsa will make good power and be easy on valvetrain parts.
Thread Starter
On The Tree
Joined: Sep 2018
Posts: 116
Likes: 1
why would you need to modify the oiling system or ignition system?
I have a 396 I built in 2003 that I am still racing today....its been shifted at 6800-7k since it was built....was a mid 9second nitrous huffing daily driver...is now fixing to get turbo fed with the goal of 1000+ HP
I would highly suggest bumping compression to 11.5-12:1 (I normally suggest 12-12.5:1)....I think I saw that you have AFR195 heads....a 23x/24x cam with around .600 lift and a 110lsa will make good power and be easy on valvetrain parts.
I have a 396 I built in 2003 that I am still racing today....its been shifted at 6800-7k since it was built....was a mid 9second nitrous huffing daily driver...is now fixing to get turbo fed with the goal of 1000+ HP
I would highly suggest bumping compression to 11.5-12:1 (I normally suggest 12-12.5:1)....I think I saw that you have AFR195 heads....a 23x/24x cam with around .600 lift and a 110lsa will make good power and be easy on valvetrain parts.
if you are dead set on under 6k RPM drop that by 10* on each side.....but that small a cam is cutting the nuts off a stroker build. I can say this because I have done it. I built mine originally with a 222/228 .544/.538 112lsa cam.....car made 422whp through a t56...was a fun street car but gutless up top. Switched to a 246/254 .613/.590 112lsa....car still had good street manners but pulled for a high as I felt like spinning it. My last street combo was a 242/252 .610/.620 110lsa...that combo was a blast to drive on the street, and ran 10.8@122 at the track on motor.
what gas are you having to run?
Thread Starter
On The Tree
Joined: Sep 2018
Posts: 116
Likes: 1
I am referring to duration.....23x as in 230-239...24x as in 240-249
if you are dead set on under 6k RPM drop that by 10* on each side.....but that small a cam is cutting the nuts off a stroker build. I can say this because I have done it. I built mine originally with a 222/228 .544/.538 112lsa cam.....car made 422whp through a t56...was a fun street car but gutless up top. Switched to a 246/254 .613/.590 112lsa....car still had good street manners but pulled for a high as I felt like spinning it. My last street combo was a 242/252 .610/.620 110lsa...that combo was a blast to drive on the street, and ran 10.8@122 at the track on motor.
what gas are you having to run?
if you are dead set on under 6k RPM drop that by 10* on each side.....but that small a cam is cutting the nuts off a stroker build. I can say this because I have done it. I built mine originally with a 222/228 .544/.538 112lsa cam.....car made 422whp through a t56...was a fun street car but gutless up top. Switched to a 246/254 .613/.590 112lsa....car still had good street manners but pulled for a high as I felt like spinning it. My last street combo was a 242/252 .610/.620 110lsa...that combo was a blast to drive on the street, and ran 10.8@122 at the track on motor.
what gas are you having to run?
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Verdad Gallardo sounds good....If you are looking for much more specific information or help ordering the cam....give Lloyd a shout at elliottsportworks.com and he can help tailor the parts to fit your needs.
Thread Starter
On The Tree
Joined: Sep 2018
Posts: 116
Likes: 1
Thx I'll give him a call when he opens. What about vaccum I'm told bigger cams don't produce enoight vaccum
Thread Starter
On The Tree
Joined: Sep 2018
Posts: 116
Likes: 1
TECH Fanatic
Joined: Jan 2017
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What is bore, stroke, rods length, head chamber size, what pistons, pump gas only? Will this be raced more than driven to starbucks or a weekend warrior? What is rear gear, transmission, tire size, converter size? Any weight reduction? What intake? Is block zero decked?
Thread Starter
On The Tree
Joined: Sep 2018
Posts: 116
Likes: 1
the standard 383 stroke. .30 over, 3.750, 6.00, 64cc, flatop -5 yes pump gas. weekend car some drag strip time. manual trans, 285/40R17, no weight reduction stock intake with 52mm TB and ported lt4 intake yes block is zero decked