Ams Evo Cam Test

Martin@AMS · 2008-05-06 22:17:11

Going to buy the magazine EDIT: Piss on Wal-Mart

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May 13, 2008 | 03:25 PM

#181

Turbo Kyle

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From: St. Louis

Going to buy the magazine

EDIT: **** on Wal-Mart

Last edited by Turbo Kyle; May 13, 2008 at 04:24 PM.

May 13, 2008 | 03:37 PM

#182

Evo8luva

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From: Chicago burbs'

I am going crazy waiting to see the GSC cam results!!
awsome thread, good job AMS!

May 13, 2008 | 03:42 PM

#183

evo_08

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From: bush LA

this thread is worst torture then waterboarding.

May 13, 2008 | 03:52 PM

#184

Martin@AMS

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From: Mount Prospect, IL

Quote:

Originally Posted by alan678

Gotcha....but that doesn't mean that they CAN'T be tested.....hopefully one day

With the Evo VIII Cosworth M2's (which have a 280 duration and an 11.0mm lift on both cams) the results should be pretty good in comparison since similar cams are used by most Evo IX owners....lets get the VIII owners some similar 'dyno proven' results

Evo VIII Cosworth M2 Spec sheet...

http://www.cosworth.com/uploads/1147891526.pdf

One thing to remember is that advertised duration is pretty much worthless when comparing cams. HKS 272, JUN 272, CRANE 272 are completely different from each other and make very different power. You really have to look at .050" lift duration numbers to get a better idea of what the cams are going to do.

May 13, 2008 | 05:11 PM

#185

crcain

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Are you going to release the cam gear settings you used to get the cams to the manufacturer spec?

May 13, 2008 | 05:16 PM

#186

demartinoink

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From: fountain valley

that made picking a cam easy! thanks!

May 13, 2008 | 05:21 PM

#187

wshihdnevo

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From: Tacoma

^the test isnt even done?

May 13, 2008 | 05:22 PM

#188

MR_EVO21

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From: Southern California

I noticed that you guys are trying to degree in the cams to the factory centerlines; however why don't you guys just install them straight up and run them out of the box?? It would make more sense to see the capablities of each cam as they were designed from the manufacturer. Just a thought

May 13, 2008 | 05:44 PM

#189

joedr

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From: Puerto Rico

Martin,

Any chance that the graphs can be plotted using RPM instead of car speed?

BTW, I appreciate the time and effort of doing this type of test! Good job!

May 13, 2008 | 05:56 PM

#190

JC evo1

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From: Australia

Quote:

Originally Posted by MR_EVO21

im pretty sure thats what they have done, set them up per each manufacturer's specs, then played aruond with cam gear settings, correct me if im wrong.

May 13, 2008 | 06:30 PM

#191

Cirrusly Evolvd

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From: High-Plains Desert

Quote:

Originally Posted by MR_EVO21

If I remember correctly the first article said that each cam is milled slightly different and may not even match the intended specs. Hence all the expensive testing to find it's centerline and correctly degree each cam to match the specs of the manufacturer. Two sets of cams from the same company can have the same duration and lift but be a half a degree off or more from each other.

May 13, 2008 | 06:41 PM

#192

joedr

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From: Puerto Rico

Correct! All of the tolerances (Cams, cam gears, timing belt) can throw the cam off from the manufacturer intended 0. Therefore, AMS dialed them to their true 0 considering Piston 1 at TDC... regardless of what the cam gears are finally dialed.

May 14, 2008 | 06:58 AM

#193

GTVEVO

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From: Ozark, MO

Subscribed, awaiting GSC S2 testing.

May 14, 2008 | 07:06 AM

#194

slicedbreadno2

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From: Chicago

Nice results on the HKS 272's

May 14, 2008 | 07:33 AM

#195

AutoMotoSports

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From: West Chicago, IL

sorry for this layover guys. Martin didn't realize that he was going to take a much needed vacation in the middle of this. I think he was due as he has not gone on one for the better part of 3-4 years LOL.

He will be back on Thursday and he will make up for lost time. Sorry again and thank you very much for your patience.

Eric