4396 replies to this topic

[CHILL Gone DUTCH]

Rods can be easily replaced with the engine in-situ, just whip the head and sump off.

Good stuff

[Rosssco]

Or......... Get a decent used Z20NET / B207, bin the balancers, light weight fly, port the head, fit your NA cams, and a couple of other relatively minor tweaks (e.g. external trigger wheel) and you'll have an engine happy till ~300+

 

AND... you get to do the ECU calibration all over again (you love it)

[vocky]

Most injectors will max out at 80% duty cycle and this is the accepted industry standard.

from a quick google search

[CHILL Gone DUTCH]

I think I would like the rods for peace of mind but keep the standard pistons. Then get the exhaust manifold port the head and be happy with 270-280 ish bhp. Avoiding lumpy idle, piston slap and a shed load of cash for the sake of 25 bhp.

    Add some uprated valvesprings and maybe cams to that for high rev fun. A light flywheel and consider balancer delete if you can bear with some extra vibrations.

Need to slow up a little here going to engine safe first then take it from there

[CHILL Gone DUTCH]

Or......... Get a decent used Z20NET / B207, bin the balancers, light weight fly, port the head, fit your NA cams, and a couple of other relatively minor tweaks (e.g. external trigger wheel) and you'll have an engine happy till ~300+   AND... you get to do the ECU calibration all over again (you love it)

Are you saying the internals on this engine are stronger

[techieboy]

Are you saying the internals on this engine are stronger

Marginally. It's partially why I'm throwing away my uprated Z22SE and installing one of these as I can't stand the Z22SE with the uprated bits in it.

[CHILL Gone DUTCH]

Are you saying the internals on this engine are stronger

Marginally. It's partially why I'm throwing away my uprated Z22SE and installing one of these as I can't stand the Z22SE with the uprated bits in it.

Do you want to throw it away in my direction

[JohnTurbo]

Lol... from a stress and fatigue point of view, due to the number of sc cars at 240-270 bhp I would say the average failure point for the rods (which would have a wiiiidddeeee bell curve of strength) would be well over 270bhp. Of course having 4 of them wont help. The training I had on the vxr day has removed any aspiration for more power. Cornerimg technique has upto ten seconds a lap potential. From now on cash is going on tyres, track time and training.

[CHILL Gone DUTCH]

Or......... Get a decent used Z20NET / B207, bin the balancers, light weight fly, port the head, fit your NA cams, and a couple of other relatively minor tweaks (e.g. external trigger wheel) and you'll have an engine happy till ~300+   AND... you get to do the ECU calibration all over again (you love it)

I wish I knew what a trigger wheel was

[Rosssco]

 

Are you saying the internals on this engine are stronger

Marginally. It's partially why I'm throwing away my uprated Z22SE and installing one of these as I can't stand the Z22SE with the uprated bits in it.

 

 

Depends what we mean by marginal, and what the end goal is. However, if for example, we assume the notional Z22SE power limit is ~270bhp, the B207 / Z20 equivalent would be somewhere in the region of 350-400bhp.. My thinking is that a standard bottom end on one of these is up to the task (with supporting cooling mods and ECU calibration) of anything the M62 can throw at it. Not so much when the TVS is included (but quite a few in the US do).

 

Interesting that the high power outputs achieved in the US also correspond with that fact that they have much better ECU calibration options (HP Tuner, Trifeca) than what we have had (until recently) with the Z22SE..

[CHILL Gone DUTCH]

[CHILL Gone DUTCH]

What's the difference

[Rosssco]

 

External Trigger wheel

 

 

[CHILL Gone DUTCH]

  External Trigger wheel    

Is this not what we want, Which one has external trigger wheel the R one

[techieboy]

the B207 / Z20 equivalent would be somewhere in the region of 350-400bhp..

Yet Maptun (and Neo Brothers) and separately Abbot Racing have all said they reckon the pistons are the limiting factor on a B207R and wont go past 320bhp before upgrading them. Rods are good to 400bhp. Crank is good for anything. Now whether turbo ponies are more nasty to pistons than supercharger ponies, or vice versa, I don't know. Nor whether these are exactly the same components that the LSJ uses as opposed to directly compatible.

[techieboy]

What's the difference

Nothing in the picture, they're the same. But I think it's basically only cams between them (and a different turbo in an OEM install).

[CHILL Gone DUTCH]

You do no that you clever people that know about trigger wheels etc are in for a ear bashing

[vocky]

What's the difference

basically just the camshafts are different

[techieboy]

Which one has external trigger wheel the R one

None of them. You'll need to fit an external trigger wheel to run it with the Z22SE ECU as the internal trigger wheel pattern is different between the Z22SE and the B207/Z20NET/LSJ.

[CHILL Gone DUTCH]

Knowledge of some people on here is awsome