Am I reading 71 hp gain from a 218 duration cam???
You suffer from reading comprehension Mr. Rolleyes.
Check post #1 again.
We added 243 heads (unported and unmilled), LS6 intake, and the custom cam, valvesprings and pushrods. While the cam was responsible for a big chunk of the gain, there were other supporting parts that contributed to the 71rwhp gain.
__________________ 2009 Pontiac G8 GT Vararam, EFI Live tuned, Cruising in 4 cylinder mode, hauling on 8. 2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAEMods list, Idle Sound Clip, WOT video, 183.092mph video 2007 Suburban 5.3L K&N FIPK, EFI Live tuned for max power and fuel economy. 2007 Jeep Grand Cherokee SRT8 sold: 12.12@112.70mph, 150.942mph Texas Mile. LS1,LS2,LS3,LS7 Custom Camshaft Specialist For custom camshaft help press here. Custom LSX drivability & dyno tuning by appointment only.
Can you talk more about the reduced "sewing machine" sound with the EPS lobes? I'm currently running a 224/230, with .609/.604 lift XFI lobes. But, I'm not real happy about the valvetrain noise (7.375" pushrods). Would the EPS lobes make a noticeable difference? Thanks!
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2001 Pontiac Trans Am WS6, 6-Speed - SCAT 4.00" forged crank, Mahle Pistons, SCAT H-beam rods, 383 cubes, '04 LS6 block, Comp Cams 224/230 cam, LS6 heads, Patriot Gold valve springs. Houston, TX USA
1980 Pontiac Trans Am - Y84 Bandit Edition, WS6 - 455 with #96 heads, 234/244 Wolverine cam, Dynomax headers
2008 Chevrolet HHR-SS. Soon with GMPP Stage 1 kit!
2001 Honda VFR - Micron exhaust
Can you talk more about the reduced "sewing machine" sound with the EPS lobes? I'm currently running a 224/230, with .609/.604 lift XFI lobes. But, I'm not real happy about the valvetrain noise (7.375" pushrods). Would the EPS lobes make a noticeable difference? Thanks!
I'll let ya know.I have the same noisy damn cam.I called Geoff and he sent
me an EPS grind. Goes in the shop on Monday.
__________________ 2000 Z28 red auto 3.23 gears lid and holley powershot filter cut-out and a tune, Vig3200, LS6 intake, ftra. best et 11.82@114.44 1.64 60ft. with skinnies.
Can you talk more about the reduced "sewing machine" sound with the EPS lobes? I'm currently running a 224/230, with .609/.604 lift XFI lobes. But, I'm not real happy about the valvetrain noise (7.375" pushrods). Would the EPS lobes make a noticeable difference? Thanks!
If you are running an unmilled head, stock rockers, stock lifters and stock thickness head gasket, 7.375" pushrods are too short for your combo. You would have quieter operation with 7.425" PRs. This is of course, assuming the above mentioned components.
You will have less valve clatter with EPS lobes, especially if you run beehive springs and not duals. It will not be as quiet as the stock cam and springs though (but better than most performance cams).
__________________ 2009 Pontiac G8 GT Vararam, EFI Live tuned, Cruising in 4 cylinder mode, hauling on 8. 2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAEMods list, Idle Sound Clip, WOT video, 183.092mph video 2007 Suburban 5.3L K&N FIPK, EFI Live tuned for max power and fuel economy. 2007 Jeep Grand Cherokee SRT8 sold: 12.12@112.70mph, 150.942mph Texas Mile. LS1,LS2,LS3,LS7 Custom Camshaft Specialist For custom camshaft help press here. Custom LSX drivability & dyno tuning by appointment only.
If you are running an unmilled head, stock rockers, stock lifters and stock thickness head gasket, 7.375" pushrods are too short for your combo. You would have quieter operation with 7.425" PRs. This is of course, assuming the above mentioned components.
You will have less valve clatter with EPS lobes, especially if you run beehive springs and not duals. It will not be as quiet as the stock cam and springs though (but better than most performance cams).
Well, the heads were milled .020" and the block decked an additional .008" to bring the Mahle pistons closer to zero deck. The rockers are stock, as are the lifters. Stock GM MLS head gaskets also. Thoughts?
Also, what is a good duration and lift with the EPS lobes for my 383? I like having great torque under the curve. This is still a daily driver .
Thanks!
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2001 Pontiac Trans Am WS6, 6-Speed - SCAT 4.00" forged crank, Mahle Pistons, SCAT H-beam rods, 383 cubes, '04 LS6 block, Comp Cams 224/230 cam, LS6 heads, Patriot Gold valve springs. Houston, TX USA
1980 Pontiac Trans Am - Y84 Bandit Edition, WS6 - 455 with #96 heads, 234/244 Wolverine cam, Dynomax headers
2008 Chevrolet HHR-SS. Soon with GMPP Stage 1 kit!
2001 Honda VFR - Micron exhaust
So you think stock 243 heads are better than a vendors worked heads? I would like a little more info on that as I have been playing with getting a set and wouldn't mind saving the money on a stock set if they are compaairable or even better.
Well, the heads were milled .020" and the block decked an additional .008" to bring the Mahle pistons closer to zero deck. The rockers are stock, as are the lifters. Stock GM MLS head gaskets also. Thoughts?
Also, what is a good duration and lift with the EPS lobes for my 383? I like having great torque under the curve. This is still a daily driver .
Thanks!
Just call Geoff at EPS and talk to him directly.
__________________ 1969 Firebird: 11.67@114 7.55@97.93 1/8 1.70 60 ft. and 11.70@116 1.76 60 ft. 6.0 LQ4, L92 heads milled 10.8:1, L76 intake, 90mm Holley TB, 85mm MAF, FIC Custom injectors, custom Comp cam (222/238 duration, 581/605 lift, 114+4) Hooker LT, PYPES dual exhaust with an X pipe, 4L60e with all of the good parts inside, TCI 3500 Super Street Fighter TC, 12 bolt with 3.73 gears. HP Tuner tuned by me
So you think stock 243 heads are better than a vendors worked heads? I would like a little more info on that as I have been playing with getting a set and wouldn't mind saving the money on a stock set if they are compaairable or even better.
I think he means if someone does a backyard port job on them not really knowing what they are doing.
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2002 Z28: vrx5 cam (236/238 .601 .605 113), patriot stage 2 ls6 heads, pacesetter long tubes, ory, dumped spiral flow, 55# injectors, speedinc fuel rail kit, walbro 255, slp lid, ftra, k&n, hsw/brand x wet kit, built trans, circle-d 4c, edelbrock torque arm adj. panhard, zo6 rims, mickey thompson dr's, 3.42 gears, sfc's, poly motor and trans mounts and gutted interior. Waiting to install, poly torque arm mount, 160 t stat, umi adj. lca's, and 2nd stage of nitrous.
When you said you got 332rwhp out of by tuning, was this JUST by tuning, no other mods at all?
Yes, when the motor was stock, we spent lots of time optimizing the power tune. The owner got bored with the power after a while and decided he wanted to go heads/cam/intake. His car dynos well because of the light weight wheels, short driveshaft and lack of accessories.
How do think this combo would dyno in a more typical F-Body? These numbers do seem fairly stout when compared to your similar CheaTR combo. Additionally how much do you think these numbers could improve with AFR 205's properly milled and setup?
Thanks!
hammertime
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Quote:
Originally Posted by Bret Bauer
For a street motor the cam that has the least amount of duration to do the job usually works the best.
How do think this combo would dyno in a more typical F-Body? These numbers do seem fairly stout when compared to your similar CheaTR combo. Additionally how much do you think these numbers could improve with AFR 205's properly milled and setup?
Thanks!
hammertime
Ray's '34 probably dynos 10 rwhp better than the typical F-Body because of the lighter wheels, lack of accessories, and shorter, lighter driveshaft. The cam was really well-matched for the combo. I would expect that some AFR 205s would be 20rwhp better in the same combo.
__________________ 2009 Pontiac G8 GT Vararam, EFI Live tuned, Cruising in 4 cylinder mode, hauling on 8. 2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAEMods list, Idle Sound Clip, WOT video, 183.092mph video 2007 Suburban 5.3L K&N FIPK, EFI Live tuned for max power and fuel economy. 2007 Jeep Grand Cherokee SRT8 sold: 12.12@112.70mph, 150.942mph Texas Mile. LS1,LS2,LS3,LS7 Custom Camshaft Specialist For custom camshaft help press here. Custom LSX drivability & dyno tuning by appointment only.
I spoke with Geoff for about an hour on the phone a few weeks ago. He's definitely one step ahead of some other folks in terms of grinding cams with valve events, control, and stability in mind. I look forward to using some of his grinds in the future, along side my current favorite (Cam Motion).
I read this post and I am VERY intrigued! It seems very close to what I want. 400+ sleeper horsepower with a cam and head setup on somewhat of a budget (Flexible). I have a Stock 2002 Z28 and I want it to put out over 400 rwhp but be a quiet everyday driver. Any ideas? Would greatly appreciate advice.
I read this post and I am VERY intrigued! It seems very close to what I want. 400+ sleeper horsepower with a cam and head setup on somewhat of a budget (Flexible). I have a Stock 2002 Z28 and I want it to put out over 400 rwhp but be a quiet everyday driver. Any ideas? Would greatly appreciate advice.
This crazy '34 Ford is anything but quiet. It might have stock exhaust manifolds, but it has dual 2.5" pipes and Flowmaster mufflers. If you want a quiet 400rwhp daily driver, you'll want better heads than stock 243s and a little quieter exhaust. The ultimate quiet 400+rwhp daily driver would be a stock motor with a set of valve springs and a small turbo, but that's other topic. Silent, but deadly.
__________________ 2009 Pontiac G8 GT Vararam, EFI Live tuned, Cruising in 4 cylinder mode, hauling on 8. 2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAEMods list, Idle Sound Clip, WOT video, 183.092mph video 2007 Suburban 5.3L K&N FIPK, EFI Live tuned for max power and fuel economy. 2007 Jeep Grand Cherokee SRT8 sold: 12.12@112.70mph, 150.942mph Texas Mile. LS1,LS2,LS3,LS7 Custom Camshaft Specialist For custom camshaft help press here. Custom LSX drivability & dyno tuning by appointment only.
One of the big the keys to making a car quiet and still make power is using high-flow cats. Cats make all the difference in the world on how loud a car can be.
Stock 243's + Custom Cam + Bolt ons + Good tuning + LT's + Good flowing catted Y + SLP Dual/Dual catback = 400+rwhp and dead quiet. I know, because I've done it.
