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Progress On The S60


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Ohh shiiitt!! Now you're talking!

How about some more engine details?

Compression ratio, internals, valvetrain, cams, ems, turbo? very interested to see what turbo you chose and i can't wait to see the manifold etc..

9:1 compresion, weisco pistons, crank was reworked, valves are over sized, cams are actually OEMs, ETC was replaced with a cable, turbo is GT35R, EMS is a Pectel.

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Did you upgrade the cylinder walls or use a stronger cylinder sleeve. I ask as I have seen a S60 guys in Asia

with cracked casting between cylinders where it is thin where they touch like this O|O

I have.... or will have two engines when its done. One was resleaved and ringed, one is not. I don't belive the block itself would have any problems with propper tuning but could be wrong. I am pretty sure the cosworth engines used the same sleaves believe it or not. I will find out

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I have.... or will have two engines when its done. One was resleaved and ringed, one is not. I don't belive the block itself would have any problems with propper tuning but could be wrong. I am pretty sure the cosworth engines used the same sleaves believe it or not. I will find out

I have been told this cracking problem is strictly harmonic in nature. If the engine is balanced it will not have harmonic problem. It appears these asians had a combination of overheating (you must run a 70-80 termostat) and this heat combined with less than great balancing so I do not think it is an issue for a well built complete engine job type motor

Edited by Helmut Ranff
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I have been told this cracking problem is strictly harmonic in nature. If the engine is balanced it will not have harmonic problem. It appears these asians had a combination of overheating (you must run a 70-80 termostat) and this heat combined with less than great balancing so I do not think it is an issue for a well built complete engine job type motor

I can see that as a large amount of biaxial stress is dissipated there. Without knowing for sure though I would guess a lot of that would be due to poor tolerances, as you said, and poor quality material used at the factory, ie poor QC.

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I have been told this cracking problem is strictly harmonic in nature. If the engine is balanced it will not have harmonic problem. It appears these asians had a combination of overheating (you must run a 70-80 termostat) and this heat combined with less than great balancing so I do not think it is an issue for a well built complete engine job type motor

Kenneth "Discom" had a solenoid/wastegate mismatch. The same thing I had with my R except with my R I discovered the problem in time..

The result with Kenneth's R was 30+ psi and what appeared to be a nice lean ignition while at it.

With a good turbo and 500 HP I don't think you will see 30 psi.

The ME 7's sensor can only read up to 22.33 psi.

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Kenneth "Discom" had a solenoid/wastegate mismatch. The same thing I had with my R except with my R I discovered the problem in time..

The result with Kenneth's R was 30+ psi and what appeared to be a nice lean ignition while at it.

With a good turbo and 500 HP I don't think you will see 30 psi.

The ME 7's sensor can only read up to 22.33 psi.

Never looked at this as I pulled the ME7 out, but can the ecu handle more if the MAP was swapped with a 3 bar unit?

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  • 2 weeks later...

What kinda RPM are you winding this thing out to? Imagine stock cams might hurt the potential if you're going to 8000+, but I don't know their specs and timing can make a nice difference...

You know what you're doing, just wondering and rambling as usual.

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