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Registered:
June 2004
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2TG (NA) cam specs vs 3T-GTEU and head cc's
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Fri, 25 February 2005 00:03
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Hi,
2 questions probably for Billzilla...
Anybody know the cam specs for the 2TG and 3TG? I'm considering replacing the stock 3TG turbo cams with the NA 2TG set assuming the specs will be a little more aggressive. Engine doesn't use a dizzy so cam drive not an issue.
Also a friend has a stuffed head on his 3T-GTEU - the 2TG will fit the block but we are wondering what the cr will be if transplanted. Does anyone have the combustion chamber cc for both so a comparison can be made?
Cheers,
(the other) Bill Sherwood
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Location:
Brisbane / Gold Coast
Registered:
May 2002
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Re: 2TG (NA) cam specs vs 3T-GTEU and head cc's
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Fri, 25 February 2005 03:21
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Hi The Other Bill Sherwood. 
Not sure sorry, I haven't touched a T engine in fifteen years ...
I guess just measure the lift with a dial guage and whichever one is the biggest, use that.
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Registered:
June 2004
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Re: 2TG (NA) cam specs vs 3T-GTEU and head cc's
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Fri, 25 February 2005 04:03
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Bugger. Valve timing is probably more the issue here, being a turbo unit. I don't have a set of 2TG cams otherwise I could dial in the lift and degree the durations myself.
Anyone have this info at hand or can point me in the direction of where to find it?
How about combustion chamber cc's?
Cheers,
Bill
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Location:
Perth
Registered:
July 2004
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Re: 2TG (NA) cam specs vs 3T-GTEU and head cc's
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Fri, 25 February 2005 04:50
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I have read the 2TG head on the 3T-GTEU flows +50 hp more
with the later revision head, and +17hp more for each cam, if you use the older cams.
but I don't know.
I am VERY interested in doing this mod.
but can't find a head. (for less than $600)
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Location:
Castle Hill, Sydney
Registered:
February 2004
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Re: 2TG (NA) cam specs vs 3T-GTEU and head cc's
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Fri, 25 February 2005 06:24
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i've read about this on toymods before, the info is there somewhere, you just gotta dig it up!
i know the cam duration for the carbi higher comp 2tgs are 256 degrees but AFAIK the efi versions had tamer cams
i remeber somebody saying its a good change going from 3tgte cams to carbi 2tg cams.
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Location:
On your mum!
Registered:
May 2002
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Re: 2TG (NA) cam specs vs 3T-GTEU and head cc's
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Fri, 25 February 2005 12:56
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I have the combustion chamber cc written somewhere for the 3T GTE - it is either 60 or 62 (damn memory  )
Maztoy - you are most definitely correct about the cam timing - it is impossible to compress the mixture with the intake valve still open.
If I get around to it tomorrow I will check the 3T measurement - I have checked one only 2T G head - it measured 58cc.
Cam specs were made available on a recent thread- do the search - it was not that far back.
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