66mm stroke, good for turbo? or junk?

69bajakid · Post by **69bajakid** » Thu May 17, 2001 1:25 pm

Hey ppl

I have a 914 1800cc, and i want to build a turbo type 4, i was looking at 2666CC..but its going to cost an arm and a leg..and might be a better "next" type 4 build up..
as this is my first one.

i do however want to make a turbo motor for some reason, I just do. and im going to.
i even have a new turbo ready.. so..

question is.. can a combo like 66X103 make for a high revving turbo motor? or would a 71X103 be better? or would i even notice a diff? thing is..if i need to buy a new crank..im going big and making a 2666. but if the 66 i have works.. then it might be fun for a street racer <vbg>

let me know what you think
thanx
Cale

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"Its not how big you build it, Its how you build it big"

Joe Del · Post by **Joe Del** » Thu May 17, 2001 1:55 pm

I don't have an opinion regarding the stroke...but turbo's like RPM's and RPM's require counterweights and balancing. That just about eliminates the 66mm crank unless you have the counterweights welded on.

69bajakid · Post by **69bajakid** » Thu May 17, 2001 2:07 pm

counterweights are a bonus..but you dont NEED them,i know, crank flex and all that..
its a VERY good idea..but a dynamic balance job to keep things spinning smooth..helps allot..i dunno..lots of ppl have built motors without counterweights..i know of 1 turbo type 4 with a stock crank and its ok..its just kinda what you plan to do with it..im not looking for 10000rpm screaming down the street..often

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"Its not how big you build it, Its how you build it big"