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Wow... you used a BTR blower cam with cathedral heads, huh? They were designed with square ports in mind. They have a lot more split than any other 'cam guy' i know would spec for a cathedral head.
It made great numbers too, but its hard not to with 13# of boost from a whipple! I'd be curious to see how things would shake out with just a tad less exhaust, say 242 as opposed to 248. |
Originally Posted by Vortec350ss
(Post 5225165)
Wow... you used a BTR blower cam with cathedral heads, huh? They were designed with square ports in mind. They have a lot more split than any other 'cam guy' i know would spec for a cathedral head.
It made great numbers too, but its hard not to with 13# of boost from a whipple! I'd be curious to see how things would shake out with just a tad less exhaust, say 242 as opposed to 248. I take his opinion as gospel and bought my entire valve train from him. |
552.4rwhp/ 575.7rwtq
5.3 Lingenfelter GT2-3 cam, LS9 valve springs, DOD delete and ARH headers with catted Y pipe Lysholm 2.3 with 3" pulley 13.8psi Alky Control 6L80E, Coan 2800 stall Triple disc (locked in 3,4,5,6) 315/60r15 Still going strong. |
4025 lbs with me in it, 6500' DA, 98°, 5 year old ET streets.
60' 1.67 330 4.57 1/8 6.880 mph 103.71 1/4 10.676 mph 129.05 Drove to track, changed rear tires, put ice in tank, ran, kicked off track for no cage. |
533/566
L33 5.3 Tc78 15psi New englandgreen cam .660 btr springs Arp studs - Ls9 gaskets 62lb injectors Nnbs 90mm intake manifold 90mm Fast T/B Built 4l80e Stock convertor 4x4 2001 Slverado stepside reg cab 12.4 @116mph |
600/535 10 psi on e85 with a lot of tuning left .
Air Fuels at 10:1 Ls6 forged bottom end 716 truck heads with ls1 intake valves Stock intake Unknown ebay turbo were thinking 70 or 76mm 2150cc fic injectors Hopefully going to the track 2016 |
TSP LS3 429ci E-Force TVS 2300 602whp/537tq @3lbs For some stupid reason I thought I was going to build a motor and leave it alone, why I went with a 4.10 stroke vs a 4” stroke, to get all I could out of a max effort N/A build. Now I am limited to run about 10-12lbs of boost safely. My overall goal is to be at or above 700rwhp. I have cubes, heads , 1 7/8 long-tubes, and a big n/a cam with 39deg of overlap killing boost. I have a new boost friendly cam I just stabbed in there, we’ll see if I can’t gain 2-3lbs back with about 30deg less overlap. After that, I plan to port the blower for better overall efficiency, and to help heat soak. Truck actually runs pretty cool, never seen above 185deg, even in this Houston Texas heat!! I’ll see where the power is at, and go from there. I think the boost cam and porting blower/runners, and snout to my NW 102 should do the trick.. Boost goal is to be around 6-7.5lbs, if cam doesn’t bring it up to 6lbs, I will pulley down one size. Oh and E85 |
Mustang chassis Dyno 66% humidity 91 degrees 2000 Silverado rcsb 6.0 lq4-317’s, Texas speed 220/220 600, stock intake, long tubes, 72 lb injectors, twin 340 lph pumps 4l80-circle d 3,000 stall, shift kit yukon 4.10 with 315/60/15’s D1 Procharger with 3.70 pulley snow performance stg2 meth no nitrous On 14 degrees timing and 11.4 afr made 565/522 on 14lbs boost. Will post again after cam swap |
694 Hp / 599TQ
2005 RCSB 4.8 Fast 102 LSXR Intake (LS2 Style), FIC1000 Injectors, A1000 Pump and Cell, Stock Heads besides Brian Tooley Springs and Trunnion Kit, Lunati High RPM Link Bar Lifters, Tick Performance Stage 1 Turbo Cam, Z06 Timing Chain, ARP Studs BW S475 T4 with CX Racing Hot Side 17.6 Pounds of boost No Meth or Nitrous Precision Built TH400 RMVB Trans Brake, ATI TreeMaster Converter 275/65/15 Mickey Thompson ET Street No runs on it yet other the the Dyno, plan to get some logged runs at the track soon! |
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