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Hi there, Im looking for the VK commodore 202 EFI specs, as there are some accuracy issues with the degreeing and lift that has been specified by some camshaft makers. I have been directed here, via oldholden.com and If anyone knows Dr Terry here, could you get him to contact me at: [email protected]. I've been told that he has the actual correct specs for the cam. cheers. My car is my lady, and she always makes me crazy!!! |
My car is my lady, and she always makes me crazy!!! |
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Ive got the cam profile. Email me via my profile and ill send you them.
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If we all had the same (good) taste, who would buy all the Fords? |
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If we all had the same (good) taste, who would buy all the Fords? |
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Rank: Member
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hey there HK1837,
Still havent received those specs for the VK camshaft profiles ;(
My car is my lady, and she always makes me crazy!!! |
My car is my lady, and she always makes me crazy!!! |
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quote:
Originally posted by jlangley666
hey there HK1837,
Still havent received those specs for the VK camshaft profiles ;(
My car is my lady, and she always makes me crazy!!!
hahahaha, give him some time mate, he has alot of stuff to go through, just look at his sandman data. relax, you will get it
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Rank: Member
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hey HK1837,
If you can send the file as an attachment to my email address, I should be able to open it. I have a copy of lotus hanging around here somewhere.
My car is my lady, and she always makes me crazy!!! |
My car is my lady, and she always makes me crazy!!! |
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Rank: Member
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Hey byron,
Thanks for the efi camshaft specs. Its not exactly in a format that I personally can understand, but im sure someone that I know can decypher it.
CHeers for that. Much apreciated ;)
My car is my lady, and she always makes me crazy!!! |
My car is my lady, and she always makes me crazy!!! |
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What I sent you is the profile as measured off the cam lobes for #1 cylinder using a degree wheel and a dial guage. The most important aspect of the EFI cam is a delayed inlet closing to take advantage of the pressure boost created by standing waves in the inlet runners. You could easily make the cam slightly bigger in lift, duration and overlap but make sure you keep some delay in inlet close compared to a single carb cam grind.
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If we all had the same (good) taste, who would buy all the Fords? |
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If we all had the same (good) taste, who would buy all the Fords? |
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Thanks Byron,
THe info you have provided me has been very useful. Knowing that I cant buy an EFI replacement cam with the exact specs, Im considering doing a custom grind that is near the same as the genuine factory one. I may consider a slightly higher lift, and a little more duration on the intake. Also, I was wondering why the exhaust timing is so quick on these cams? Do you think that its designed to increase dynamic compression?
My car is my lady, and she always makes me crazy!!! |
My car is my lady, and she always makes me crazy!!! |
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Rank: Veteran
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The VK service manual explians it all. Easy read too.
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If we all had the same (good) taste, who would buy all the Fords? |
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If we all had the same (good) taste, who would buy all the Fords? |
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For cam specs I find this website a help http://tighecams.com.au/cars.htm
go to holden and then hyd 202. I presume the black efi specs on there are std. ___________________ Why are you reading this, you should be looking up there^^ - HJ turbotonner looks and goes like a sneezing rhino on heat! - |
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THanks champ,
I checked out this site earlier because another dude directed me to it. It isnt very accurate as it states that its a 20/0/60/20 cam, but apparently because of the long runners in the efi intake, it needs to open up earlier and close later on the inlet. Also apparently the exhaust has a shorter duration something like 60/40 on the exhaust. Dynotec sells a pc202 camshaft, which is the most accurate that i can find at the moment, but I may have to get a custom ground camshaft done to get what I want.
My car is my lady, and she always makes me crazy!!! |
My car is my lady, and she always makes me crazy!!! |
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