jayro
SHO Member
Not 100% sure since mine were MTX cams. I would think that because yours looks like the pic posted by Hawkeye that you have it right, but since I have no first hand experience with the ATX cams I don't want to tell you wrong.
Problems with SHOshop cams. Mismatched cams How do I time these?.
- Thread starter zach44102
- Start date
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Not 100% sure since mine were MTX cams. I would think that because yours looks like the pic posted by Hawkeye that you have it right, but since I have no first hand experience with the ATX cams I don't want to tell you wrong.
ShadetreeSHOguy
Postwhore
[YOUTUBE]rX7wtNOkuHo[/YOUTUBE]
St Louis SHO
Rollin' coal
The cam tool novass showed will time the motor correctly, no?
These are how the cams sit right now. Im not to sure SHOshop made the stage 2's out of 3.0 cams cause the intake cam will not line up with the hole in the cam. The exhaust cam does line up with the hole in the cam. I pulled the other valve cover and noticed the car did have 3.0 cams and all the dots and holes lined up perfectly. Also on the stage 2's intake cam it is not a KOA cam. I think it said m12 or something.
Something help please. lol
Thats looks like a 3.2 / ATX intake cam to me , still a tooth off. The bolts should be staight across on either the 3.0 /MTX or 3.2 / ATX,
The 3.2 /ATX intake cam on the other head should ALMOST line up, ( bolt and cam hole ) but still will be a little off when properly installed BUT the bolts should ALWAYS be staight across from each other on ALL set ups
Are you sure they are SHO SHOP or SHO NUT cams??
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these are SHOshop stage 2 cams. I have confirmed one cam is a ATX cam. The reason it looks a tooth off is because the ATX cam is advanced 4 degrees (according to Mr.A) But if you look closely the white chain mark is on the gears dimple.
One ATX and one MTX intake cam core in same engine? I would get out the mic and start measuring all 4 cams to see if they are even matched in lift numbers.
My understanding is the ATX "advance" was ground into the lobes and when installed they still lined with the bolt all in a line, ( this is reguardless if its MTX or ATX )
I run the sho nut +20 cams ground on atx cores and installed them as per factory (ATX / MTX with all the bolts aligned) and it runs great.
My understanding is the ATX "advance" was ground into the lobes and when installed they still lined with the bolt all in a line, ( this is reguardless if its MTX or ATX )
I run the sho nut +20 cams ground on atx cores and installed them as per factory (ATX / MTX with all the bolts aligned) and it runs great.
Mr Anonymous
Tire Wall
You're still at least a tooth off. The bolts should line up regardless.
The cams dont even have cam caps on them. I think thats just the way the cam is sitting. I was showing where the cam gear sat in comparison to the hole in the cam.
Mr Anonymous
Tire Wall
Yeah but, as Josh mentioned on FB the issue is that the ****** holes impact the exhaust cam timing, and you don't know if SHO Shop ground the lobes using the belt end or the chain end as reference, or if there is a difference at the belt end between ATX and MTX that we're not aware of.
So, despite what I said on FB, you might end up needing a full set of adjustable exhaust AND intake sprockets to make the cams match up.
I dont know what to tell you at this point. With possible mismatched cams ground by someone who isnt in bussiness anymore and with not much info about what they did its hard to guess online.
I understand what you are saying about running one advaced chain sprocket to make up for the differance between the ATX and MTX intake cams .
What would I do ?
First measure the lift on the cams to make sure the intake and exhaust even match.
Next get a degree wheel and dial indicator. Put them on the MTX cam set up ( since it seems to line up per factory) and measure the differance between the intake and exhaust events then try to duplicate it on the other head.
OR
Put them on Ebay.
I understand what you are saying about running one advaced chain sprocket to make up for the differance between the ATX and MTX intake cams .
What would I do ?
First measure the lift on the cams to make sure the intake and exhaust even match.
Next get a degree wheel and dial indicator. Put them on the MTX cam set up ( since it seems to line up per factory) and measure the differance between the intake and exhaust events then try to duplicate it on the other head.
OR
Put them on Ebay.
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SHOtimer
#2910
SinisterSHO
Rust free
Were they installed in the sellers car?
I just thought Id chime in here after getting a PM from Zach. I cant really offer much help because I never even took these out of the box before selling them to you. I feel terrible that I sold you these, and having an issue with them. We all know ShoShop's quality control was bad, but this seems pretty terrible.
Ill be watching this thread, now that I know about it.
-Andrew
Ill be watching this thread, now that I know about it.
-Andrew
These are how the cams sit right now. Im not to sure SHOshop made the stage 2's out of 3.0 cams cause the intake cam will not line up with the hole in the cam. The exhaust cam does line up with the hole in the cam. I pulled the other valve cover and noticed the car did have 3.0 cams and all the dots and holes lined up perfectly. Also on the stage 2's intake cam it is not a KOA cam. I think it said m12 or something.
Something help please. lol
You have an ATX cam there and it is on backwards. The hole needs to be on the other side.
See here in the picture:
Do you have a picture of the cam bearing surfaces?
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