Lingenfelter GT7 Cam 208-230 554/546 121LS
Feb 18, 2005 | 08:07 PM
#11
Originally Posted by SportSide 5.3
It should have idle characteristics close to that of a '02+ Z06. My pop has an '03. I think they have a nice little lope to them, even with full exhaust...but it depends what you are looking for.
I read that quote that Grip referred to, but I'm somewhat confused. These root style blowers make so much low end power. What would be the point of a 6200peak/6500shift? I'd think to keep the camshaft small with modified valve events, good overlap, efficient exhaust and you'd have a killer setup. Keep the shifts below 6000.
Anyone disagree? Please feel free to chime in.
How much boost are you making?
Grip,
Who wrote that quote, and how can I get in touch with him/her?
I read that quote that Grip referred to, but I'm somewhat confused. These root style blowers make so much low end power. What would be the point of a 6200peak/6500shift? I'd think to keep the camshaft small with modified valve events, good overlap, efficient exhaust and you'd have a killer setup. Keep the shifts below 6000.
Anyone disagree? Please feel free to chime in.
How much boost are you making?
Grip,
Who wrote that quote, and how can I get in touch with him/her?
Jeff Myers
Lingenfelter Performance Engineering
260.724.2552 x 1004
260.724.8761 fax
jmyers@lingenfelter.com
Feb 18, 2005 | 09:28 PM
#12
TECH Addict
Joined: Oct 2003
Posts: 2,618
Likes: 0
From: Central, MA
Funny, I just wrote to Lingenfelter last night, asking about that cam. I was wondering what application they recommended it on.
"Quick" lobe on the intake, "Lazy" on the big exhaust, wide LSA. Sounds like a few cam theory/specs I heard going around.
"Quick" lobe on the intake, "Lazy" on the big exhaust, wide LSA. Sounds like a few cam theory/specs I heard going around.
Vendors, do you discriminate against MSN users? 
Feb 19, 2005 | 03:09 PM
#15
More quotes:
"This camshaft is used in forced induction applications. As far as lift, not as much is needed for forced induction applications. Keep in mind, the more lift and more duration in a camshaft nets more mixture in normally aspirated engines in which you rely on vacuum to fill the cylinders. In order to get the most possible mixture in a NA engine, for more power you need more lift and duration. In a forced induction, you won't have to go to that extreme, therefore a little more lift in a forced induction won't make as much difference, as it would in an NA engine. Going to a 1.85 rocker is only going to add more lift which you probably won't notice a whole lot with your supercharger. The GT-7 camshaft reflects a good exhaust system as well. If you have a stock exhaust, you may want to consider the GT2-3 camshaft"
"This camshaft is used in forced induction applications. As far as lift, not as much is needed for forced induction applications. Keep in mind, the more lift and more duration in a camshaft nets more mixture in normally aspirated engines in which you rely on vacuum to fill the cylinders. In order to get the most possible mixture in a NA engine, for more power you need more lift and duration. In a forced induction, you won't have to go to that extreme, therefore a little more lift in a forced induction won't make as much difference, as it would in an NA engine. Going to a 1.85 rocker is only going to add more lift which you probably won't notice a whole lot with your supercharger. The GT-7 camshaft reflects a good exhaust system as well. If you have a stock exhaust, you may want to consider the GT2-3 camshaft"
Feb 19, 2005 | 04:00 PM
#16
The only problem I see, is that camshaft gives up alot of power for the stealthness & drivability. Especially in the mid-range. It'll idle like a Honda. ****, it only has 30* of overlap @ .006 (app.). -21* @ .05
Feb 19, 2005 | 08:15 PM
#17
Originally Posted by SportSide 5.3
The only problem I see, is that camshaft gives up alot of power for the stealthness & drivability. Especially in the mid-range. It'll idle like a Honda. ****, it only has 30* of overlap @ .006 (app.). -21* @ .05
Sorry to sound like a dum *** but what do you mean? Are you referring to the GT-7
Feb 19, 2005 | 11:27 PM
#19
Originally Posted by greentahoe
For a roots charger it would probably be cool, but I wouldnt do it with a centrifugal. The 212/218 I just installed makes sick lowend and crazy power throughout!! And it seems to tear up tensioners like nobody's business 
Feb 20, 2005 | 09:02 AM
#20
I have an old lingenfelter grind 220/220 566/566 120lsa. I know I should have went with a traditional split but I got a good deal on the cam. It has a slight lope, and makes crazy power up top. I have just enough power in the bottom end to give me traction but if I start to lay into it, she breaks loose. As soon as I get all my boost problems worked out, this cam should help retain it through the upper RPM's.