Blower Cam fun
Blower Cam fun First off... I know jack **** about cams. 
All I know is that I need one for my new setup:
Forged 347
D1SC maxed out (3.4"/7.65" pulleys I'd need to spin to ~6700 rpm)
PRC 6.0L Stage 2.5 heads
3400 Pro Yank Converter
Compression should be ~9.2:1
The car will be see mostly street and occasional track time.
I've searched.. and searched.. and searched some more.. and these seem to be the popular cams people go with here:
Thunder Racing Camshafts:
"Split Pattern" - 224/227 .563/.569 114 LSA For nitrous and supercharger applications. This cam will check in the 226 range on the exhaust lobe. 2200-6800 RPM Power Band. Excellent mid-range & high RPM power. Automatic cars require computer tuning and it is recommend for optimum results on manual transmission cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended.
"TR Blower" - 214/230 .601/.579 117 LSA. Off Idle-6800 RPM Power Band. Broad power range. Different from our CheaTR with even less valve overlap for forced induction applications. Stock like idle. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended. Double valve springs and titanium retainers required for this cam.
Speed Inc's Blower Cams:
Futral Motorsports
FMS Custom Grind Camshaft - 224"/230" .588"/.595" 114LSA - aggressive profile with a 1800-6800 RPM range, fair idle, recommended for blower/nitrous applications
FMS Custom Grind Camshaft - 232"/236" .585"/.600" 114LSA - aggressive profile with a 2800-7000 RPM range, rough idle, recommended for blower/nitrous applications
There's also EPP's blower cam but that looks a bit too big for a 347.
I want something that idles a bit meaner than the stock cam but also performs well (obviously). From the sounds of things a 114 LSA would be the best for that. I've also read that too much overlap leads to "blowing off boost". I'd also like the ability to pass emissions testing, although that isn't a huge concern right now since I'm not required to do them. Worse comes to worst I could always do a cam swap come emission time. I'm also more interested in power under the curve instead of peak horsepower. It's hard to find dyno sheets of all these various cams to see what the curves look like.
Sadly there isn't a magic spreadsheet I can plug values into to give me the perfect cam spec so I probably just should call up a sponsor to get their opinion on a custom grind.
Which sponsors give the best cam specs or should I go with one of the above listed cams?
All I know is that I need one for my new setup:
Forged 347
D1SC maxed out (3.4"/7.65" pulleys I'd need to spin to ~6700 rpm)
PRC 6.0L Stage 2.5 heads
3400 Pro Yank Converter
Compression should be ~9.2:1
The car will be see mostly street and occasional track time.
I've searched.. and searched.. and searched some more.. and these seem to be the popular cams people go with here:
Thunder Racing Camshafts:
"Split Pattern" - 224/227 .563/.569 114 LSA For nitrous and supercharger applications. This cam will check in the 226 range on the exhaust lobe. 2200-6800 RPM Power Band. Excellent mid-range & high RPM power. Automatic cars require computer tuning and it is recommend for optimum results on manual transmission cars. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended.
"TR Blower" - 214/230 .601/.579 117 LSA. Off Idle-6800 RPM Power Band. Broad power range. Different from our CheaTR with even less valve overlap for forced induction applications. Stock like idle. Due to the fast ramp rate of this camshaft, the use of 1.8 rockers is not recommended. Double valve springs and titanium retainers required for this cam.
Speed Inc's Blower Cams:
Code:
Cam Duration Lift LSA
int. exh. int. exh.
SC1 222 228 .566 .571 114
SC2 224 232 .581 .595 114 FMS Custom Grind Camshaft - 224"/230" .588"/.595" 114LSA - aggressive profile with a 1800-6800 RPM range, fair idle, recommended for blower/nitrous applications
FMS Custom Grind Camshaft - 232"/236" .585"/.600" 114LSA - aggressive profile with a 2800-7000 RPM range, rough idle, recommended for blower/nitrous applications
There's also EPP's blower cam but that looks a bit too big for a 347.
I want something that idles a bit meaner than the stock cam but also performs well (obviously). From the sounds of things a 114 LSA would be the best for that. I've also read that too much overlap leads to "blowing off boost". I'd also like the ability to pass emissions testing, although that isn't a huge concern right now since I'm not required to do them. Worse comes to worst I could always do a cam swap come emission time. I'm also more interested in power under the curve instead of peak horsepower. It's hard to find dyno sheets of all these various cams to see what the curves look like.
Sadly there isn't a magic spreadsheet I can plug values into to give me the perfect cam spec so I probably just should call up a sponsor to get their opinion on a custom grind.
Which sponsors give the best cam specs or should I go with one of the above listed cams?
FormerVendor
Joined: Mar 2006
Posts: 1,540
Likes: 0
From: Hell AFB
To pass the sniffer, you will need a small cam for sure. Our 232/240 will NOT pass the sniffer due to overlap.
However for max power, on a 346 our cam does work great to have a peak # in the 6400rpm range.
However for max power, on a 346 our cam does work great to have a peak # in the 6400rpm range.
I'm in sorta the same boat here. I know didly about cams. Thanks for putting all the different cams in the same post so it's easier to compare but I get so confused by all the different cam specs. It's frustrating.
I'm looking for a strong cam to replace the stock one on my Camaro. I'm running a P1SC at 7psi and looking for a good cam or even a head/cam combo that'll bring the power up to another level. Currently making 440rwhp/405rwtq on the stock ones. Would the 232/240 be too much for my setup?
Any help is greatly appreciated.
I'm looking for a strong cam to replace the stock one on my Camaro. I'm running a P1SC at 7psi and looking for a good cam or even a head/cam combo that'll bring the power up to another level. Currently making 440rwhp/405rwtq on the stock ones. Would the 232/240 be too much for my setup?
Any help is greatly appreciated.
Thanks, I'll look it over.
That's what I thought. Thanks for the reply.
It was hard finding info on this so I figured I'd try to make a good thread for others to be able to look up when they come across this issue as well.
I'm in sorta the same boat here. I know didly about cams. Thanks for putting all the different cams in the same post so it's easier to compare but I get so confused by all the different cam specs. It's frustrating.
I'm looking for a strong cam to replace the stock one on my Camaro. I'm running a P1SC at 7psi and looking for a good cam or even a head/cam combo that'll bring the power up to another level. Currently making 440rwhp/405rwtq on the stock ones. Would the 232/240 be too much for my setup?
Any help is greatly appreciated.
I'm looking for a strong cam to replace the stock one on my Camaro. I'm running a P1SC at 7psi and looking for a good cam or even a head/cam combo that'll bring the power up to another level. Currently making 440rwhp/405rwtq on the stock ones. Would the 232/240 be too much for my setup?
Any help is greatly appreciated.
I have speed incs SC2 cam in my D1 Procharged 347. I am very happy with this cam so far. Sounds great at idle and has made good number so far. I was on the dyno with it yestarday and made 550rwhp and 537rwtq at 5500rpm loosing fuel preasure so I couldn't run it any higher. Plus I was only seeing about 7psi at that RPM. Now I need to fix my fuel problem and get a smaller blower pulley and an alky kit. 650rwhp here we come
FWIW I ran the times in my sig with the 347 and the EPP cam, its a pretty good sized cam and there is no hiding it. I still have it in the new 365 and it works good enough where I wont change it, but previously I ran a '01 LS6 cam and a 222/228/115 XE with the same conbo and there wasnt three tenths and 3mph between all three cams.
Really depends how far you want to go to get that last bit of HP, cant go wrong with any of the cams you listed..
Really depends how far you want to go to get that last bit of HP, cant go wrong with any of the cams you listed..
Trending Topics
Right now I've got this cam in my HOSS: Comp 232/237 595/601 112lsa
But I'm about to put the D1SC on it... I think I want something in the 114 lsa range??
ETP 5.3 Heads on the car fyi...
But I'm about to put the D1SC on it... I think I want something in the 114 lsa range??
ETP 5.3 Heads on the car fyi...
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I've read a lot of good things about the Futral F7 cam. So that is what I purchased for my setup I'll be installing soon. Quite a few guys getting ~550rwhp with that cam, long tubes, and about 8lbs of boost.
cam Im going to be selling the cam Im pulling out of my car, its a 224/228 on 115LSA Blower Cam, reason Im selling it because Im goint to a 408 and getting a 236/242 on 114LSA Cam! !
Will be selling it for 230.00 shipped! !
Will be selling it for 230.00 shipped! !
