in search of more power.....can a mild 350 support turbos..with a little psi - Lateral-g Forums

importkiller69ss · #1 05-04-2006, 06:43 PM

i am searching for a little more performance out my motor ...i cant seem to break low 13's but i know it has it in hear...it is really stong mid way but not alot down low.....just looking to break low 13's maybe 12s can a mild motor support a turbo making small amounts of boost.....twins or single......not looking for a kit but a home built kit to stretch my fabbing ability......looking to get 500-600 rwhp...is this obtainable with a mild 350 non forged bottom end but all new parts?.......looking at maybe a cummins or some other diesel turbo to make a single but for a street car i heard the take alot of rpms to spool so i heard it is just better to go with twins......any help......liek i said i am not looking to break any lamd speed records just a little performance..... whatscha think

ka67_72 · #2 05-04-2006, 07:45 PM

Yes but be prepared to break stuff. If a little boost is good, more is better, and it's sure easy to turn it up. I had an all cast internal twin HY-35'd 327 in my 67 Chevelle. I think those turbos were a bit large for my application but it would start making boost around 2500 if I just stepped into it from idle. I broke the ring land off the number five piston after about a year running 7psi, but It was an old motor. The engine builders on this site will probalby cringe, but used forged 350 pistons are cheap on ebay. I have a single hx-35 making 12psi on a injected 302 with forged pistons, stock crank and rods. I blew the head gaskets once, but replaced them with better ones and installed ARP bolts. I currently run 12psi on the street. It spools almost instantly. I highly recommend EFI for helping a turbo motor survive.

Kevin

importkiller69ss · #3 05-04-2006, 07:53 PM

so in reality there is no insurance ....it may or may not support it... i want to build a boost ready motor but funds dont allow right now being 19 and in college....even a small single turbo my motor wouldnt withstand...

68protouring454 · #4 05-05-2006, 05:40 AM

do you know that your motor now is probaly only 300 rwhp?? and you think alittle more is to double it?? good luck, i would throw a 100-150 nitrous shot onit and call it a day

Payton King · #5 05-05-2006, 06:31 AM

You can get an adjustable plate system for $400. Run that and start aquiring parts for the turbo set up.

ka67_72 · #6 05-05-2006, 08:50 AM

It's hard to say for certain what your motor will withstand. I don't have a lot of experience and the guys on this site with the experience probably run all forged internals on all their motors. Check the jyturbo site.

Kevin

importkiller69ss · #7 05-05-2006, 10:24 AM

i would have to disagree i knowi have no monster but my motor is making a little more power than that even before the rebuild and headwork

68protouring454 · #8 05-05-2006, 10:36 AM

that thing will blow up, if you try to double the power.
and a 350 with a 268 cam and some cast iron heads, is not going to be 400 rwhp, which would be 475 crank hp or so.
goodluck, but i would throw some nos on it and slowly pick forged parts on racingjunk and ebay then do the turbos
jake

importkiller69ss · #9 05-05-2006, 10:53 AM

thanks ..i wasnt saying that i knew what kinda power i could get out thats why i was asking i had no idea just twnated to get some knowkedge.....i thought nos was harder on a motor than boost....so a mile motor can handle 100 shot

68protouring454 · #10 05-05-2006, 01:05 PM

yes, i think 150 shot and under is safe on most stock type motors, plus it will be fairly cheap, look at the top shot set up or better yet a used plate set up, that will get you what you want.
jake