When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Well you would be all setup for a solid roller. If you go that route then I would contact Pat G and have him spec out a Cam motion LLR solid on a 8620 core. Or get his opinion. Still don't see the solid as necessary, but you will have the setup for it.
I would hands down go with a Hydraulic cam on a street build if it were a track car then I would go solid , but Putin around on the streets how often will you really take advantage of the solids benefits?
Do you have a valve spring pressure tester? I use one that just latches onto the rocker with everything in tact to check spring pressure. Otherwise you will be removing the springs to have them load tested at a machine shop on a bench. Not a big deal though.
Tough choice. I'll probably just let builder/pat g/cam/martin@tick/etc decide on cam route.
Now if I was going auto for sure, I would want to see 7800-8000 so I could rev out with a glide, and have a wicked 6000-8000rpm powerband, but with a 6 speed, don't want to mess with high RPM stuff.
I hate mech lifters in street car builds. I only use them when needed, and that is dictated by required spring loads. There is a slight loss in power with hydraulic lifters, but that is a small detractor in comparison to the benefits of lower maintenance. "Low lash" is just a clever marketing ploy. I wouldn't put too much weight towards that, verse any other mech roller. .......and I don't know what lifters you've been pricing Nick, but the ones I use are way more expensive than any hydraulic.
Just based off that, leaning towards the hydralic as I trust MD a lot. The solids I was looking at were in the $350-400 range compared to $700+ for nice hydralics.
Improved racing cranks scraper does work with the dragonslayer I just put one on my 454 with the callies rods (4.125 inch stroke). They only make the windage tray for stock LS7 but ....... If you have a 4 inch crank and aftermarket rods what you need to do is have them send you a plastic template for the non LS7 4 inch stroke kit and just put it on the scraper they give you and dremel away took me an hour. The plastic template save a lot of time and guess work a few minor tweeks and it was on. I will post photo of template. The windage tray part bolted right on and no need for spacers.
Here is the scraper template. Basically I would say the GM rod part is 1/2 inch you basically need to widen to like 3/4 of an inch or so. There are a couple of other areas that need to be widenend but most of the work is widening the rod area with maybe a little notching for the bolt. But that part might be because I had a 4.125 inch crank.
Improved racing cranks scraper does work with the dragonslayer I just put one on my 454 with the callies rods (4.125 inch stroke). They only make the windage tray for stock LS7 but ....... If you have a 4 inch crank and aftermarket rods what you need to do is have them send you a plastic template for the non LS7 4 inch stroke kit and just put it on the scraper they give you and dremel away took me an hour. The plastic template save a lot of time and guess work a few minor tweeks and it was on. I will post photo of template. The windage tray part bolted right on and no need for spacers.
Originally Posted by double06
Here is the scraper template. Basically I would say the GM rod part is 1/2 inch you basically need to widen to like 3/4 of an inch or so. There are a couple of other areas that need to be widenend but most of the work is widening the rod area with maybe a little notching for the bolt. But that part might be because I had a 4.125 inch crank.
Working on specing the cam now. Right now leaning towards
LSG lobes
236/250 @.050 664/664 w/1.8 rockers on 116+2
Open to other options, but should be a bit bigger than before, work with the sheet intake, and drive nice. A little more lift without going extreme to take advantage of the mast heads.
Getting some others involved but that is top choice now.
2nd cam suggested by cam person was 244/262 +116+5, which seems excessively big for my setup. Then again maybe not.
Working on specing the cam now. Right now leaning towards
LSG lobes
236/250 @.050 664/664 w/1.8 rockers on 116+2
Open to other options, but should be a bit bigger than before, work with the sheet intake, and drive nice. A little more lift without going extreme to take advantage of the mast heads.
Getting some others involved but that is top choice now.
2nd cam suggested by cam person was 244/262 +116+5, which seems excessively big for my setup. Then again maybe not.
2nd choice if you are aimed more at running the car a good bit, 1st would be a sweet all around cam. I am not sure about the 116+5 though, that cam will be rowdy I would think.
I like the extra lift as well, part of me wished I went extra lift but I did not want over .660 for valvetrain reasons.
Did you try Mike Jones yet? EPS? Martin Smallwood?
Not yet. Working on it. Talking with the guys at Comp, and BTR, etc.
2nd cam probably way too big for what I want, but would run good.
Car is blower limited no matter what. I'm really liking the 1st cam so far. With the crower rockers, lift shouldn't be an issue.
What size spacers do I need for the holley tall covers to clear the crowers?
03-14-2018, 09:45 PM
