which engine is better both in performance and reliability?? 1gen or 2gen???

[TracOwner]

which one? Plus, can anybody explain this 6 bolt 7 bolt thing to me. I'm not sure what the difference between them is.

 

[paranoidTSi]

Its been pretty well established that a 6-bolt (90-early 92) 1st GEN has the most reliable and is able to SUPPORT the most horsepower.

6-bolt - flywheel is held on by 6 bolts, uses bigger rods which means better horsepower support
7-bolt - flywheel is held on by 7 bolts, uses smaller rods, about 50HP less in terms of support on stock internals...all dsms late 92+ are 7-bolts.

The 2G Motor introduced better "flow" characteristics (Intercooler) and better compression which is what gives the 2G Motor a 20HP advantage over the predecessor.

 

[mitsuman_626]

Its been pretty well established that a 6-bolt (90-early 92) 1st GEN has the most reliable and is able to SUPPORT the most horsepower.

6-bolt - flywheel is held on by 6 bolts, uses bigger rods which means better horsepower support
7-bolt - flywheel is held on by 7 bolts, uses smaller rods, about 50HP less in terms of support on stock internals...all dsms late 92+ are 7-bolts.

The 2G Motor introduced better "flow" characteristics (Intercooler) and better compression which is what gives the 2G Motor a 20HP advantage over the predecessor.

I think the 2g's extra horsepower comes from compression and better head flow.

if you look at both intercoolers you'll see that the 1g's is way deeper.

 

[TracOwner]

This one guy wants to sell me his gst with an 1gen 7bolt swap. So, basically the 7bolt has 50 less hp than the 6bolt?

 

[paranoidTSi]

1st gen motors have a 190-195 HP rating (depends on where you read) weither its a 1st gen 6-bolt or 7-bolt...

the 6-bolt can HOLD more horsepower on stock internals than 7-bolts can...roughly 450HP for a 6-bolt and 400 for a 7-bolt

 

[BlandAnalogy]

dont forget to leave out one of our biggest enemies... crankwalk

 

[tstkl]

1st gen motors have a 190-195 HP rating (depends on where you read) weither its a 1st gen 6-bolt or 7-bolt...

the 6-bolt can HOLD more horsepower on stock internals than 7-bolts can...roughly 450HP for a 6-bolt and 400 for a 7-bolt

your talking crank hp right, i would hate to see someone blow their engine and say, well it dyno'ed at 350+ whp, shouldnt it hold up to 100 hp more? it is a 6 bolt...

 

[BlandAnalogy]

no im talking about CW.. i was told a while back that the 6 bolt have less of a tendancy to gain CW..

 

[Defiant]

The answers to all these questions are all over this site.

Please do some looking around before starting another thread of beaten-to-death topics.