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Its been a back burner project but im running out of stuff to play with on the track car so have had some free time to mess with it. Might do something with it this week end and finally finish up the tune and see what she puts down on the stock turbo with 93 octane. Everything's roughly stock so it should be a good comparison.
Edit & Update: One of my coils gave out so when I get some spare cash ill mess with it again.
Last edited by Live4Redline; May 7, 2013 at 09:27 AM.
So with the same stroke and similar or same bore size you could use forged rods and pistons used on 2.4 stroker kits then. And if the compression is too low, you could always deck the head a bit or get higher compression pistons.
Extreme bump and first post. Thought i would chime in here as there is not a lot of info on this topic out there.
I have an Evo 5 currently running a complete G4JS going on 5000kms now, about 3 years total
The head has stock evo 5 valve train (cams, springs, retainers, valves, gears)
The block has Manley forged H-beam rods and 10:1 CR Manley pistons, stock 100mm crank and was bored out to 87mm
All ARP bolts/studs were used and ACL race bearings
The tricky part was the timing setup, as mentioned the stock hyundai cams and belt have a different tooth pitch so that was all chucked out.
I was able to use Tomei adjustable cam gears (Evo) along with the Evo crank gear and tensioner. The issue with this is that the oil pump gear is in a different location than a 63/64 so the Evo belt would not work. I did a lot of measuring and had a subaru idler pulley lying around so that was used in place of the larger evo idler pulley (needed some spacing but works).
The kicker is that now i had to use a SRT-4 timing belt (same pitch as Evo), as the length of everything wouldn't allow the 4g63 belt to be used. Still running the stock power steering bracket and pump. stock alternator with massaged alternator bracket but it all works and runs on a single belt, as the evo would normally.
Long winded but all that to say i got the G4JS running with stock ish Evo timing gear. Definitely an experiment but it was fun and runs great.
May 1, 2013, 05:23 PM
