Diff Big 16G's and spin balancing?

[kingearl]

Roadrace says that thier big16G uses the same compressor housing as a normal 16G and extreme says thiers is a slightly larger "TD05H" compressor housing. Are these differant Big16's or or are the compressor housings really the same?

And after porting and clipping the exhaust wheel 10 degrees roadrace has a Big16g for less than extreme does, but extreme says that they spin balance the turbo as a unit along with the compressor wheel and shaft. Thats not mentioned with roadrace. What is spin balancing and does roadrace do it even though it isnt mentioned?

http://www.extrememotorsports.com/g1cat/turbo.htm
http://www.roadraceengineering.com/eclturbos.htm

 

[Black95GSX]

RRE does balance there turbos, they just don't find it necissary to advertise it as a selling point.

Any turbo, new or rebuilt is balanced -- otherwise the turbo would explode at 100,000+ RPM (I've seen it happy... not pretty)

Also, I don't know if it would be good to clip a 16g. If you want better top end, go with a bigger turbo. Clipping a 16g just isn't a good idea from what I've seen on "other" cars.

 

[GST4U2NV]

i agree to a point, a buddy has a TRE big 16g thats clipped, in theory it should help top end flow thats where i do agree, but in real life it made no difference at all on that turbo top end, but the bottom end lacked cause of it.

 

[kingearl]

So, clipping is a waste of money then? everyone thinks this?

 

[Black95GSX]

Definately... if you want top end, get a 20g, Green, L1, L1R, L2 or L2R...... those all have much better top end over a 16g.

From what I've read, the L1R should spool pretty damned well, faster then a 20g..... as soon as a 16g? (not sure)..... but have a little more top end then a 20g.


As far as 16g's go... IMO they feel like a stock turbo with power up top, unlike a T25....