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hi guys ive got a vk with an injected 202 and i wana put a cam in it and i wana no if u need to chance the computer or u can slot one in and have fun C ive asked heeps of ppl and i got varied answers but no one can explain, proov or justify there answer if any one has any info itd be extreemly great thanks Azza
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Hi Azza.
The camshaft in the VK EFI motor is similar to the 186 XU-1 cam. Why do you want to change it.
A bigger cam, as many have found out, is not always better.
Get the injectors cleaned, the EGR working properly & tune the EFI motor to specs |
If at first you don't succeed, just call it Version 1.0 |
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Plus the EFI cam has a delayed exhaust closing to take advantage of the ram tubes. If you put a non-retarded timing gear onto it the cam works out pretty close to 30/70 70/30. The standard gear retards the cam about 6 degrees. |
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cool thanks heeps guys if the standard cam is close to an xu1 cam then im not going to be able to do much better by changing it im just going to source out a wolf 2d ems anyways
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Just reading up on this now. if i put this cam in a 186 what additions would i need? I know i would need the 202 pushrods but is there anything else? and also is the cam the same in a 202 blue motor? If it is can i buy a blue bottom end and just strip it
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You only need the 202 pushrods if you run 202 rockers and head. The cam is very different from a blue cam, and isn't really suited to anything except the VK EFI inlet.
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So im better off getting a crow cam or something like that?
Fcuk Psi
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Yes. 2nd hand cams are not a real good idea.
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30/70 hay! does't knock the vacuum around a bit. should be a bit sluggish under 2000 rpm? vk 3.3 efi .a VS 5.0L 30/70 to? full duration. 0,006 inch. what would that be at 0.050 .
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what would i need if i'm running 186 rockers?
Fcuk Psi
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If you want to run 186 rockers on a 12 port 202 head, you will need a stud conversion kit fitted to the head. Yella Terra have these kits. |
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crow cams say max cam for efi 3.3l is p no.35631= 17/58 in 63/17 ex. with out computa modification.
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Um HELP.
Looking at the Crow cams website the Maximum cam for EFI engines without computer modification is 35631. But the 186 XU1 cam is the 35604. I crossed checked that data with american autos. So my six with vk injection and other bits such as extrac
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