Engine Differences Turbo vs Non

[muvian]

Ok i know this is going to sound like a stupid question but i would like to know the differences between the turbo and non-turbo engines besides the obvious fact that it has no turbo. Thank you for your help

 

[Dave_Hash]

1g or 2g engines?

 

[TurBoGs-T]

You're probably gonna have to be a little more specific. What exactly are you trying to find out.(i know you're lookin for the difference in engine but what are you trying to do with this information)

 

[sacestar836]

the 2g engines are similar at best, and the 1g are almost identical with the exception of difference in compression

the 1g 1.8 is a different story, but the best i can tell you is thar although it is really reliable, it sucks powerwise

 

[paranoidTSi]

Heres something taken straight from a manual (I'm not geek enough to memorize this):

2nd generation comparision
N/T Compression: 9.6:1
T Compression: 8.5:1
T Stroke: 3.46 in.
N/T Stroke: 3.26 in.
T Oil Pressure @ Curb Idle: 11.4psi
N/T Oil Pressure @ Curb Idle: 4psi

1st Generation Comparison
N/T 2.0 Compression: 9.0:1
T 2.0 Compression: 7.8:1
N/T 1.8 Compression: 9.0:1
N/T 2.0 Stroke: 3.46in
T 2.0 Stroke: 3.46in
N/T 1.8 Stroke: 3.39in
T 2.0 Oil Pressure @ curb: 11.4psi
N/T 1.8 Oil Pressure @ curb: 11.4psi

2G T VS N/T Motors are nothing alike. 1G T and N/T are fairly similiar, the differences are:
Intake & Exhaust Cam Height, Compression, Ring groove width.

 

[muvian]

Ok im sorry i was so vague. i wanted to know how different the 1g blocks are i have a 1G 6bolt engine out of a n/t and was going to rebuild it for my 1g T. i also wanted to know how different the other parts where like the intake man., head, ect. any other help would be nice

 

[cxx]

Originally posted by paranoidTSi
1st Generation Comparison
N/T 2.0 Compression: 9.0:1
T 2.0 Compression: 7.8:1

Are the 2.0l T and 2.0l N/T heads different? Or why is there a difference in compression?

 

[muvian]

the compression is different because of the pistons, you have to run lower compression in a turbo car so you can run boost. If you didnt lower the compression then you wouldn't be able to run as much boost and it would hurt performance

 

[gixrman]

I bought a N/T 2g head off ebay thinking I could just rebuild it and swap it on but after looking at the ports they are totally different. The N/T heads ports are small as hell and I don't know if I can port them out to match, expand the turbo head ports.