swift700

iTrader: (3)

Go 2300. Trust me on this. I'm looking at upgrading and going IW overdrive plus 2.8 on my setup, but it would be equally nasty on a 5.3

JimS

Anybody got any suggestions who I see about an upgrade kit from my current Radix to a 2300? I can't seem to find much.

I think I should probably have it installed. I just don't know enough, especially about the electronics, to undertake it and would be stranded and pretty much helpless, if I ran into a problem.

moregrip

iTrader: (8)

I would get the jackshaft 2300 setup for the TBSS; you would have to make an intake for it but the benefit is you can start underdriven, then go 1:1, the overdrive it

Joe would be the best to order this setup from as he has the most experience with TB positioning.

The other thing you'd have to consider is heads. Are you staying with cathedral or wanting the newer stuff?

JimS

Are the jackshaft setup's as reliable. I'm just thinking.. more moving parts = more chances for breakage and it seems like it could be a concern that could be avoided by changing pulleys?

No decisions made for the 390 but for now I'd be sticking with my Darts. I'm leaning towards staying with my Darts on the 390, at least for a while.. probably get them opened up some by the short block builder. I just turned 68 and have become a little more conservative as geezerliness sets in more and more.

1slow01Z71

iTrader: (36)

The jackshaft version will be plenty reliable especially with your old geezerness behind the wheel

I'd send your heads off to tea or ai to be hogged out when the time comes for a new motor.

Good to see you back around Jim

JimS

Thank you (for the referral)... and

Thank YOU for the welcome. It's always good to come back to old friends... or young friends, as the case may be.

Would anybody care to venture an educated guess how much boost a 2300 with a 2.8" pulley would produce in a 390 c.i. engine?

1slow01Z71

iTrader: (36)

If you get the jackshaft version and overdrive it in the rear you will likely need an 8 rib pulley system to keep brig slip down and of course you would go with an overdriven crank pulley. Depending on the compression ratio of the motor you could see about 20#s. Joe has made a little over 20 with that blower system on a 370. Is highly recommend talking to Joe at leftcoast32 about your entire setup. He is the magnacharher guru.

Atomic

iTrader: (42)

About 13lbs with the stock truck crank pulley.

1slow01Z71

iTrader: (36)

And 1:1 drive in the rear if you have the jackshaft version...

moregrip

iTrader: (8)

Yes, they are reliable. It all really depends on how far you want to go. The most flexible system is the jackshaft version; it will provide you the most options.

Direct drive does have less moving parts so yes there is less to go wrong; but honestly, they rarely go wrong with either version.