transamblack

iTrader: (11)

Or just FI in general, I would like to upgrade my stock radiator while I'm in there doing all the work. What are most people running, or what do you recommend?

blue00ZZleeper

iTrader: (5)

I know a couple of people who are running a LT1 radiator. They seem to be doing fine with it. Better bang for the buck then some of the more expensive aftermarket options.

transamblack

iTrader: (11)

That's interesting, I'm sure I've read that somewhere. What's the differences in the two that makes the LT1 better? Is it the same dimensions? I don't mind spending up to $500 on a better radiator...I don't wanna get up in to the $899 range like that crazy *** Ron Davis one or anything.

transamblack

iTrader: (11)

I also noticed your setup will be almost identical to mine, engine wise besides the throttle body. I'm looking to throw down around the same numbers. Have you had any heating issues at all? Are you running the one procharger supplied fan or a SPAL fan with it? Thanks.

uphigh07

iTrader: (48)

hey transamblack i have a built 383 heads cam ect. running 10Ibs of boost making well over 600hp with stock radiator and one spal fan with no heating problems at all. lookin my sig for more details..... you will be fine if you really want to spend 500 bucks on a new radiator i would go with an lt1 radiator and do two 12" pusher fans with the 16" pullerfan and the 9" puller fan above the procharger. you will not have any cooling problems i have seen in on over 1000hp cars

uphigh07

iTrader: (48)

just some advice from another kansas fbody owner

LS1RedZ

iTrader: (19)

Do you have any pics of this fan setup? My car likes to creep over 210 in full boost.

uphigh07

iTrader: (48)

i still have the stock radiator but here is a thread to read i have talked to losts of people about this and that is what i have been told.

read all of this:
https://ls1tech.com/forums/forced-in...-resolved.html

transamblack

iTrader: (11)

I appreciate the advice uphigh07...where are you located? I like the LT1 setup with the pusher/puller fans, I will be going forged 370 or 383 over this winter, so it appeals to me. Just seems like some have heating problems and some don't, I would rather err on the side of safety...I honestly have no clue what I would be putting out in that area at 14#...maybe 700+. LOTS of great info in that thread provided.

uphigh07

iTrader: (48)

im in garden city, 370 and 383 is a good choice are you doing a d1sc or p1sc or a f1? the reason i went 383 was more torque but both are a good choice. i am about to do a head and intake swap for the afr 225's i have and a vic jr setup and i will be maxing out my d1sc. All i have left to get for the build is arp head studs, and my pipe from my polished plentum to the throttle body my 12" pusher fans and time to install it all since its my dd. Its going to be fun i cant wait

BadgeZ28

iTrader: (28)

I run an LT1 radiator. Same overall dimensions, three core, compared to the LS which is two core. I think mine was a 95 year radiator, and I needed to plug an extra port at the bottom left and retain the sensor that is just below the top pass. side hose.

Slowhawk

iTrader: (12)

We just use the stock radiator.We also seal the procharger fan to the radiator and wire it up for low speed.For high speed we use 1 or 2 7" pusher fans.Works very good,even on 100 degree days.

transamblack

iTrader: (11)

370 is what I'm leaning towards, I'd like to keep my D1. I got a great price on it, polished unit with 2500 miles...problem is I'm not too sure on the limitations of the D1...F1 would be nice, but I think it would be more useful on the 383ci+. Am I correct there, information is always nice so let me know. Since I don't know exactly how big I want to go in the future I'd like to knock this radiator setup out now. When you finish your setup I'd love to see it. I can't believe it's your DD, that's sick!

uphigh07

iTrader: (48)

well it depends on your overall goals, people have ran d1 on 408's you dont get as much boost out of them compaired to say a 383 or 370 if you look on the link i posted the black ta is trust old car he is a member on here and he ran the d1 on a 396 and with a 12bolt and stalled auto he mad over 800 to the wheels and it ran in the 9's weighing almost 4000 pounds so if you have the right setup the d1 is plenty. i think he was maxing the d1 out at like 18Psi. once i get my setup all done i will post up all kinds of pictures and info on it how much boost and so on.... Thanks its just like driving a heads cam car on the street untill i get into boost then it just pulleds. since my car is the 6 speed its very DD friendly

blue00ZZleeper

iTrader: (5)

I run 2 Spal fans. I live in so cal and it gets pretty hot here during the summer. I've never had any issues with overheating at all. Yes the LT1 radiator is a little larger and wider but not to much. Funny you mention 370 cause I just started a build on one lol. Should be done in about 3 weeks. Im also switching heads to prc2.5 317's. I'm hoping to make around 750ish with the blower maxed running meth injection.

transamblack

iTrader: (11)

I'd like to see the progress in your build blue00ZZleeper. I'm really not planning on going with 317's...I would like to have 8.5-9.0:1 compression all forged internals and keep my stock P&P heads...they flow pretty well, I'd say with the numbers I'm putting down NA around 27X cfm give or take. Still haven't decided on who I want to go through to get prices on the engine. I'm going back and forth on the LT1 radiator idea now...you say it's wider? Would it be at all possible to just drop it in without mods? Yours and uphigh07's builds I will be paying a lot of attention to, seems we have right around the same ideas. What flow do the 2.5 317's put down? Thanks for all the advice and information guys

Urban Legend

iTrader: (5)

This linky might help. https://ls1tech.com/forums/forced-in...ired-cool.html

EPP

iTrader: (22)

I'd bump the compression ratio up into the 9.5/1 range, the engine will run better and will make more boost. Bob

blue00ZZleeper

iTrader: (5)

My target is 9.6ish-1. The 317's say they flow between 310-320cfm on a couple different websites. I think I'm going to go with -11cc dished pistons and the 72cc 317 heads. Like bob said blower cars need a little more compression because down low they'll be more doggish without the comp to back it up. Usually 9.5-1 is target for a lot of blower builds. I figure my 750 goals should be too hard with maxing the blower out and spraying methanol. PM me and I'll tell you more about my setup. Could port out the combustion chambers a little on the heads to lower compression as well.

transamblack

iTrader: (11)

I appreciate all the info, sorry the late response we are on vacation in Steamboat. Bob, I'll be calling you soon to order the fan set up for the D1, and the piping for the intercooler! You guys got me thinkin about 317's now...O the decisions!