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Re: Evo 8 cams?


punisher
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Galant VR-4 org Post #: 446627 posted 03/02/07 09:57 PM     Remind Me!  Send Private Message   Edit Post      
The ramp angle doesn't matter. The cams are spinning the correct direction, they are NOT spinning in reverse.



-Matt
1992 Talon Tsi awd - DD
1991 Eclipse GSX - project

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656of1000
You can't put a price on childhood memories
656/
1000


Galant VR-4 org Post #: 446686 posted 03/03/07 08:13 AM     Remind Me!  Send Private Message   Edit Post      
Yes, since it was confirmed that the two motors spin the same direction, I wouldn't think ramp angles are even a factor, like punisher has been dilligently saying.

If I'm understanding this correctly (and I think I do) the best way (and safest way) to perform this mod is to swap cam positions from one motor to the other, and cut a notch in the new intake cam for the cas. You should cut a new notch anyway (from the 90* offset) so it might as well be on the proper cam. It still seems a bit unclear whether the differences in exhaust and intake cams are negligable, but like a lot have said, I'd rather be safe than sorry.

This has been a great debate so far, but we still need hard, solid facts from someone who actually did this mod!



Mark I.

1992 Galant VR4 656/1000
2004 Mazda RX-8
1988 Escort GT Turbo
1987 Ranger STX
2002 Subaru Impreza Outback Sport

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dsm_drew
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Galant VR-4 org Post #: 446692 posted 03/03/07 08:35 AM     Remind Me!  Send Private Message   Edit Post      
I just put my head on the workbench and got my EVO cams out to see how things spin. The sketch I did before was misleading, punisher is right, the cams are still spinning the same direction as before so it doesn't matter which way you install them they will always open the valves with the opening side of the cam lobe. The opening ramp angle will always be opening the valve. So any concern about the ramp angles is pretty much a moot point. The EVO cam may have a bit different angle than the original cams, but as said before its not going to be aggressive enough to stress the valvetrain.

I will try to get some pics of me cutting the new slot in the cam later today and installing them in my head. However, since my motor is far from finished I won't be able to give any performance impressions/data.

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punisher
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Galant VR-4 org Post #: 446744 posted 03/03/07 12:05 PM     Remind Me!  Send Private Message   Edit Post      
Since you are cutting a new slot anyways, swapping the intake and exhaust cams isn't necessary, you will be able to run them in the correct orientation.



-Matt
1992 Talon Tsi awd - DD
1991 Eclipse GSX - project

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dsm_drew
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Galant VR-4 org Post #: 446797 posted 03/03/07 04:15 PM     Remind Me!  Send Private Message   Edit Post      
Exactly. I was only going to swap positions if the slot in the EVO exhaust cam would work with my CAS. Since that doesnt work I had decided to just use them in their original positions and cut a slot in the EVO intake cam.

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tsiboy
has one ambihelical hexnut
810/1000


Galant VR-4 org Post #: 446825 posted 03/03/07 05:51 PM     Remind Me!  Send Private Message   Edit Post      
well i have been checking in on this thread for quite a while and so i thought i would just crack open on of my spare 90 style CAS's that i cant even give away.
here it is with the cap off


here it ise at TDC



here it is clocked for the evo cam 90' off


if you get some one to machine you one of these (cough curtis cough)

with the this hole rotated like so 90' then that might work, or even just cutting the remainder of the circle in the center, rotating it 90' and tightening that might work also.

just food for thought

-alex

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punisher
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Galant VR-4 org Post #: 446880 posted 03/03/07 09:09 PM     Remind Me!  Send Private Message   Edit Post      
Screw it. Im just going to swap plug wires. Wait, damn my car isn't running.



-Matt
1992 Talon Tsi awd - DD
1991 Eclipse GSX - project

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Myles
Douchebagel with Lox


Galant VR-4 org Post #: 449125 posted 03/08/07 03:08 PM     Remind Me!  Send Private Message   Edit Post      
anyone put them in yet?



1929/2000 *SOLD*

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punisher
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Galant VR-4 org Post #: 449166 posted 03/08/07 04:45 PM     Remind Me!  Send Private Message   Edit Post      
My set is going in UtahGalant's car at the end of the month. Anyone know of a cheap dyno in SLC? I really want to do a couple comparative pulls while they're in.

I would put them in my gsx, but the engine is currently out and being rebuilt.


Edited by punisher (03/08/07 04:46 PM)

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snwysleeper
Unregistered


Galant VR-4 org Post #: 449476 posted 03/09/07 12:44 PM     Remind Me!  Send Private Message   Edit Post      
i had mine in for about a day but could not get the car to run under 1500rpm i ground down the D shape on the cas disk and spun it around 90 deg but dont think i went the right way and then just got frustrated becouse it seemed no matter where i moved the cas the car ran like crap, so i just bought some fp2x's and tehn broke off a valve and now am rebuilding the motor

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Myles
Douchebagel with Lox


Galant VR-4 org Post #: 456868 posted 03/27/07 08:32 PM     Remind Me!  Send Private Message   Edit Post      
Any word yet? The weather here is getting nice and I still don't know what I should do.



1929/2000 *SOLD*

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Terry Posten
Old Balls
425/1000


Galant VR-4 org Post #: 456882 posted 03/27/07 09:07 PM     Remind Me!  Send Private Message   Edit Post      
This is my opinion Myles.

There is too much to risk to try this. A used set of 264s are not that much more and the amount of work needed to do the swap AGAIN is just not worth it.

Your time is too valuable. Do it right the first time and you will be driving your car and not watching it collect dust.

If I would have just built my own motor up in the begining instaed of tring to save a little time and money, I would be driving a KNOWN good car right now.

I had budgeted $2000.00 dollars and spent just a few more when I thought I was done. Then I found out that the crank was bad in my setup. I now have spent almost $1000.00 more fixing this mistake. And it still is not running. And in hind site, for $3000 I could have built a better setup than I have now.

Bottom line - Don't try it. Use proven technology and drive happy.

Remember, Pioneers take all the arrows, Settlers get the land. Who do you want to be?

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GVR-4
Creative Name Huh?
77/1000


Galant VR-4 org Post #: 456920 posted 03/27/07 10:17 PM     Remind Me!  Send Private Message   Edit Post      
^^ Sound advice.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dave Peter

Can't polish a turd.

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thesoccadude
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Galant VR-4 org Post #: 456929 posted 03/27/07 10:34 PM     Remind Me!  Send Private Message   Edit Post      
Quote:

This is my opinion Myles.

There is too much to risk to try this. A used set of 264s are not that much more and the amount of work needed to do the swap AGAIN is just not worth it.

Your time is too valuable. Do it right the first time and you will be driving your car and not watching it collect dust.

If I would have just built my own motor up in the begining instaed of tring to save a little time and money, I would be driving a KNOWN good car right now.

I had budgeted $2000.00 dollars and spent just a few more when I thought I was done. Then I found out that the crank was bad in my setup. I now have spent almost $1000.00 more fixing this mistake. And it still is not running. And in hind site, for $3000 I could have built a better setup than I have now.

Bottom line - Don't try it. Use proven technology and drive happy.

Remember, Pioneers take all the arrows, Settlers get the land. Who do you want to be?




Very well said. I was really considering this option but only if it was a bolt up affair. All the work involved to make it work isn't worth it especially if they aren't much more aggressive than stock.

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Myles
Douchebagel with Lox


Galant VR-4 org Post #: 457075 posted 03/28/07 10:10 AM     Remind Me!  Send Private Message   Edit Post      
Quote:

Remember, Pioneers take all the arrows, Settlers get the land. Who do you want to be?




Terry. I've never heard that but I really like it. I'm already trying to sell them. Otherwise they'll just make a nice paper weight. I guess it was a good idea while it lasted, but doing it the right way is always better than the cheap way.



1929/2000 *SOLD*

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GVR4Jay
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Galant VR-4 org Post #: 501922 posted 07/06/07 02:59 AM     Remind Me!  Send Private Message   Edit Post      
Just some info I found on this old-ish topic. Not sure if it is correct but it comes from crowers website.


Description
O.E.M.spec2004EvolutionVIIIUSDM
Advertised Duration 256 / 256
Duration @ .050" 182 Lobe 178
198 Valve 194
Gross Lift w/ 1.7 .386" inch .367"
9.80 mm 9.32


O.E.M.specEclipse4G63USDM
Advertised Duration 256 / 256
Duration @ .050" 174 Lobe 165
190 Valve 181
Gross Lift w/ 1.7 .366" inch .343"
9.29 mm 8.71

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punisher
Member +


Galant VR-4 org Post #: 622807 posted 03/16/08 01:23 PM     Remind Me!  Send Private Message   Edit Post      
I know this is an oldschool topic, but I was wondering if anyone has made any progress. I know people have ran these, I have pics on my desktop of them in a dsm, just no details.

I have really been debating ordering a set of custom ground 272 Evo cams.

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Bimmubishi
giant log


Galant VR-4 org Post #: 784323 posted 04/23/09 08:24 PM     Remind Me!  Send Private Message   Edit Post      
I want to run the new Tomei 290s so someone better hop to it!

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nickbuilt
member
1798/2000


Galant VR-4 org Post #: 915010 posted 07/13/10 09:44 PM     Remind Me!  Send Private Message   Edit Post      
i know this is a really old topic but diid anyone ever get this too work ever???

-nick



#767/2000 - sold
#1798/2000 - sold
2003 evolution 8 - lightning yellow

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Speed_Racer
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Galant VR-4 org Post #: 918670 posted 07/28/10 06:31 PM     Remind Me!  Send Private Message   Edit Post      
Looks like kicking at a dead horse to me. This is a three year old thread. I just read 5 pages. It was like reading a shitty book hoping for an awesome ending. This ending is not awesome.

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524of1000
Crossed Member
524/1000


Galant VR-4 org Post #: 918689 posted 07/28/10 08:48 PM     Remind Me!  Send Private Message   Edit Post      
Why not go with the 1g non turbo cams? They are a slight upgrade and can be had for about $40 at the junk yard



America was raised on speed. Hot, Nasty, Bad ass speed. - Eleanore Roosevelt, 1936

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speedyvr4
Still looking for the forest!
536/1000


Galant VR-4 org Post #: 918747 posted 07/29/10 01:26 AM     Remind Me!  Send Private Message   Edit Post      
because if your on a budget like me, and you need perormance cams, you can just hold off and buy some used hks's,bc's, etc, from a member here for about 300 bucks, or you can get some nice regrinds for that kind of money and actually have an upgrade. that's just my opinion. I got some nice hks 264's from a memer here with 10k on them for 325 bucks a few months ago. can't beat that for the money IMHO.






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kaptainballistik
Junior Member


Galant VR-4 org Post #: 1029838 posted 10/29/11 12:21 AM     Remind Me!  Send Private Message   Edit Post      
Thread from the dead... Morso I can find this thread again!

Ive got the Cams from a MR ( Bigger lift and duration than a std EVO) Whats critical is the people who have done it CORRECTLY have left one small bit of info out...

Its all about 165 deg out from standard! Which means it works ( just happens to be a tooth out ) but you do need to dial the standard gears in and the cams dont "park" in the correct spot as the TDC position is on the cams lift ramp...

Ill get back to you shortly

PS some people have put the intake as the exhaust... so be REALLY careful what you believe because some of the threads are trainwrecks!


Edited by kaptainballistik (10/29/11 12:25 AM)

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kaptainballistik
Junior Member


Galant VR-4 org Post #: 1030177 posted 10/31/11 01:26 AM     Remind Me!  Send Private Message   Edit Post      
after some carful skulduggery ive got the Intalke cam slotted for the CAS....

Shal attempt on Wed...



Throttle.....Thats an on off switch isnt it?

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kaptainballistik
Junior Member


Galant VR-4 org Post #: 1031099 posted 11/04/11 01:55 AM     Remind Me!  Send Private Message   Edit Post   
Its possible..... Its doable.... you have to get the CAS slot right :/ ( I had it 30 degrees out so I made it work by cutting the slot out of teh CAS, Im goung to weld some bits on to increase the slot length..)

It GOES HARD!

For keen punters, the Timing looks pretty close to the Kelford rally Grinds.



Throttle.....Thats an on off switch isnt it?

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