Must be one of those mornings; while watching Larry the Cable Guy travelling around America in search of his next heart attack, I got thinking about the S2 and its future treats (a common daydream for many, I'm sure). Ironic, having just spunked a load of money on it... Anyway, while thinking about the cost of getting the bottom end all sorted out and maybe a nice flowed head on there, I wondered what sort of a stroker motor I could build for the same cost and what sort of turbo upgrades would suit...
Option 1:
+ Very strong, will rev cleanly to 7500, no packaging issues
- Revs are limited by lifters and valve springs (could replace), rebore could cause HG issues.
Option 2:
+ Loads of torque, nice project
- Revs limited to 6500, packaging issues with taller block.
Goal wouldn't be much more than 400bhp but I'd want it to be suitable for track use and thus reliable and not overly stressed. Turbo wise, I'd be looking at a K26/7 hybrid or 3071 on either setup and all the bolt-on stuff would be uprated to suit. Of course, a small inlet 3076R would also be a nice plan, and I could go T3 EM - spec creep anyone ?
Be intersted in what other people think, purely as a talking point TBH, as, let's face it, nothing is going to happen for a while
Option 1:
- Standard stroke
- Standard bore or slight overbore, perhaps with pistons (depending on bore inspecion)
- Lower CR
- Uprated rods
- Zero balance crank, lightened FW etc.
- All new bearings, rings and seals
- ARP mains and rod bolts (I already have head studs)
- One of JP's lovely flowed heads
- Cost £2500-3000
+ Very strong, will rev cleanly to 7500, no packaging issues
- Revs are limited by lifters and valve springs (could replace), rebore could cause HG issues.
Option 2:
- 95.5 stroke and tall block
- Standard bore
- Custom rods to suit
- Lower Cr
- Standard balance
- Standard mains
- Stock head (checked and rebuilt as necessary)
- Adjustable cam pulley for timing correction
- Approx. cost £2500-?
+ Loads of torque, nice project
- Revs limited to 6500, packaging issues with taller block.
Goal wouldn't be much more than 400bhp but I'd want it to be suitable for track use and thus reliable and not overly stressed. Turbo wise, I'd be looking at a K26/7 hybrid or 3071 on either setup and all the bolt-on stuff would be uprated to suit. Of course, a small inlet 3076R would also be a nice plan, and I could go T3 EM - spec creep anyone ?
Be intersted in what other people think, purely as a talking point TBH, as, let's face it, nothing is going to happen for a while
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