Jackson blocks which one to choose?

[mitsuclipsegsx]

So i need a short block for my 99 GSX and i am looking at jacksons stage 2 6 bolt. Would the stage two be good for a FP 3065 in terms of spool up. Looking to get full boost at 4k or little lower, or should i go with the stroker?


https://www.jacksonautomachine.com/html/shopping/list_section.cfm?sectionId=27

 

[2gGSX]

The 2.0L will definitely not spool a 3065 by 4000 RPM. The stroker would get you closer to your goals, but still not 4000 or below.

 

[daren_p]

Just for an FYI my stock compression 2.0L spools my 3052 to 20 psi right around 4200 rpms (I may have a very slight pre turbo exhaust leak), so maybe would see at 4000 rpms on a "perfect" setup. I know a guy with a 3052 on his stroker & believe he see's 20 psi right around 3600 rpms. The 3065 will add approx 500 rpms to your spool, so doubt you'll see 4000 rpms with a stock compression 2.0L. Most tend to be in the 4500-4800 range on a 2.0L, of course depending on supporting mods. Defently go with a stroker if you want closer to the 4000 range.

 

[mitsuclipsegsx]

Thanks for the info. Why is it that a 7 bolt stroker is more expensive then a 6 bolt?

 

[95blackGsTurbo]

Nothing against JAM but you can piece one together for much cheaper. I did my 2.3L build, all new parts, including machine work for $1,600. Then I assembled it myself, which is pretty straight forward as long as you take your time and double check your clearances.