These are “blower friendly” Cams??? - CorvetteForum - Chevrolet Corvette Forum Discussion

Notices
C6 Forced Induction/Nitrous C6 Corvette Turbochargers, Superchargers, Pulley Upgrades, Intercoolers, Wet and Dry Nitrous Injection, Meth
Sponsored by:
Sponsored by:

These are “blower friendly” Cams???

Reply

 
 
 
Old 07-18-2018, 08:14 PM
  #1  
73DBG
CF Senior Member
Thread Starter
 
73DBG's Avatar
 
Member Since: Apr 2018
Location: Diamondhead MS
Posts: 341
Thanks: 0
Thanked 18 Times in 17 Posts
Default These are “blower friendly” Cams???

I’ve been getting lots of crash courses on all things LS7, a bunch of good word from this forum. Lately I’ve been trying to educate myself on camshafts, what the numbers invoked mean, and how they affect each build. One of these specific cams pictured is/was on my Z when I bought it, Blower was also on. Heads are off waiting on AHP to ship at the end of the month. Entire valve train was left stock minus the pushrods from comp to fit the cam. None of these have numbers similar to pretty much any other company advertising centri “blower friendly” cams. Just curious on yalls opinions. A new cam is going in with the new heads, 100% not even an option.



73DBG is offline  
Reply With Quote
Old 07-18-2018, 10:04 PM
  #2  
Unreal
CF Senior Member
 
Unreal's Avatar
 
Member Since: Nov 2007
Location: Gilbert AZ
Posts: 20,911
Thanked 1,204 Times in 1,033 Posts
Default

I would just copy my old cam, drove amazing, and works damn damn damn good.
Unreal is online now  
Reply With Quote
Old 07-18-2018, 10:29 PM
  #3  
Patriot Six
CF Senior Member
 
Patriot Six's Avatar
 
Member Since: Jun 2016
Location: Alexandria VA
Posts: 825
Thanked 129 Times in 123 Posts
Default

The first one is close to mine. I’m running a 223/239 116+2. It makes great power with a Ti trim and driveability is great.
Patriot Six is offline  
Reply With Quote
Old 07-19-2018, 01:46 AM
  #4  
73DBG
CF Senior Member
Thread Starter
 
73DBG's Avatar
 
Member Since: Apr 2018
Location: Diamondhead MS
Posts: 341
Thanks: 0
Thanked 18 Times in 17 Posts
Default

The second one is what is/was in my car, it has none of the supporting parts recommended below the pics, at least from what I could tell, maybe the springs are the comp dual kit but that’s it, everything else is factory valve train. I’m just trying to understand how 5 valve springs broke. I know for a fact I never over reved the car, only other people to drive it have been mechanic and tuner. I’m just trying not to go back with a cam that’s not set up for the heads or the rest of the mods I have. I’d be pretty damn mad if a few months after new heads were installed a break BTR duals the way these broke. I can’t speak to any of the work done prior, I know you threw some possibles out unreal about the physical install prior, but I have no way to know what was done right or wrong, I should have the heads boxed up and sent out to Khole tomorrow maybe he’ll have some more answers after inspection. Can you direct me to where I can find your specs unreal, I feel like I’ve read a few threads with you breaking down what you went with or getting some other builders thoughts on cams but I’m not sure there was a few I think. Khole said he’d grind one for me he also to my surprise said there could be a better option than one of his as well, and we could go that route as well. The guys doing the work have a strong BTR tie and really like his stuff, I think they are sending over my specs as well. I just want to do this car right and not just throw a cam and blower on a car without all the supporting **** needed. I’m damn lucky I made out the way I did, **** could have been real bad. I’m down to run your cam, I only had the car a day and half with the prospeed on, 195-198 on the highway, 205-208 in town, that’s a huge win right there!!! Thanks brah!
73DBG is offline  
Reply With Quote
Old 07-19-2018, 11:37 AM
  #5  
73DBG
CF Senior Member
Thread Starter
 
73DBG's Avatar
 
Member Since: Apr 2018
Location: Diamondhead MS
Posts: 341
Thanks: 0
Thanked 18 Times in 17 Posts
Default

Originally Posted by Unreal View Post
I would just copy my old cam, drove amazing, and works damn damn damn good.

this cam? 115+3 .232/246?

Whats the lift and who made it?
73DBG is offline  
Reply With Quote
Old 07-19-2018, 11:41 AM
  #6  
Unreal
CF Senior Member
 
Unreal's Avatar
 
Member Since: Nov 2007
Location: Gilbert AZ
Posts: 20,911
Thanked 1,204 Times in 1,033 Posts
Default

Comp, LXL/LXL, Lift comes around ~.650.

Would need to dig up the cam card, but close to that. Maybe it was a 230/246.
Unreal is online now  
Reply With Quote
Old 07-19-2018, 01:01 PM
  #7  
73DBG
CF Senior Member
Thread Starter
 
73DBG's Avatar
 
Member Since: Apr 2018
Location: Diamondhead MS
Posts: 341
Thanks: 0
Thanked 18 Times in 17 Posts
Default

I’ll take whatever info you got, I’m trying to dig deeper into the +3 on the LSA and what that means/does.
73DBG is offline  
Reply With Quote
Old 07-19-2018, 01:29 PM
  #8  
Unreal
CF Senior Member
 
Unreal's Avatar
 
Member Since: Nov 2007
Location: Gilbert AZ
Posts: 20,911
Thanked 1,204 Times in 1,033 Posts
Default

+3 or whatever is built in advance, and LSA is lobe separation angle.
Unreal is online now  
Reply With Quote
Old 07-19-2018, 07:03 PM
  #9  
73DBG
CF Senior Member
Thread Starter
 
73DBG's Avatar
 
Member Since: Apr 2018
Location: Diamondhead MS
Posts: 341
Thanks: 0
Thanked 18 Times in 17 Posts
Default

Making progress on wrapping my head around the numbers, seems like the +3(or any advance) would be beneficial to a blower set up if the internals are correct to handle it properly. Now I’m digging deeper into when and why keeping valves open/close longer/shorter at different RPM’ ranges plays into everything. Seems a bit complicated at the moment ....but also seems like getting that math right is where the moneys made on these cars.
73DBG is offline  
Reply With Quote
Old 07-20-2018, 02:28 AM
  #10  
Pekka_Perkeles
CF Senior Member
 
Pekka_Perkeles's Avatar
 
Member Since: Oct 2005
Location: Kauhava, Finland
Posts: 840
Thanked 33 Times in 31 Posts
Default

Originally Posted by Patriot Six View Post
The first one is close to mine. I’m running a 223/239 116+2. It makes great power with a Ti trim and driveability is great.
Driveability is more about (your) excellent tuner than just the cam...
Pekka_Perkeles is offline  
Reply With Quote
Old 07-20-2018, 07:36 AM
  #11  
Patriot Six
CF Senior Member
 
Patriot Six's Avatar
 
Member Since: Jun 2016
Location: Alexandria VA
Posts: 825
Thanked 129 Times in 123 Posts
Default

Absolutley. The tuner is key. My cam is mild, therefore, it's easier to tune for driveability.
Patriot Six is offline  
Reply With Quote
Old 07-20-2018, 03:17 PM
  #12  
73DBG
CF Senior Member
Thread Starter
 
73DBG's Avatar
 
Member Since: Apr 2018
Location: Diamondhead MS
Posts: 341
Thanks: 0
Thanked 18 Times in 17 Posts
Default

Filled out a long form with Cam Motion, took me around an hour to plug in all the numbers, I’d say I had around 80-85% of the info requested on the long form. I was missing Khole’s numbers on exhaust side flow but he sent them over today. Anyway here’s what they sent back.

Grind number: XA234/365-XA254/355-118+4

Duration @.50” Intake: 235/ Exhaust: 254

LSA 118 W/114 centerline

I haven’t nailed down the math for calculating lift, I know I need to apply the 1.8 rocker ration, but not a 100% on that. Just by looking at the intake/exhaust number this seems like even more lift than my currant cam, LSA is wider and last cam had no advance, but I’m not sure how to compare and contrast the cams with each other. So if any of you fine gentlemen are board and feel like dropping some knowledge it wouldn’t go to waste that’s for damn sure. If not no worries, I’ll make sense of it eventually lol. 🇺🇸
73DBG is offline  
Reply With Quote
Old 07-22-2018, 06:02 PM
  #13  
jayyyw
CF Senior Member
 
Member Since: Jun 2015
Location: Austin Tx
Posts: 2,201
Thanked 194 Times in 181 Posts
Default

The last one you posted in the OP, is very close to the RPM B3
jayyyw is offline  
Reply With Quote
 
 
 


Thread Tools
Search this Thread
Quick Reply: These are “blower friendly” Cams???


Sponsored Ads
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: