street_tuna

Hello ,


I have motor that jusy finshed and its for drag race only ... so what i need to know is what size A/R that every one is using for that kind set up .

the motor is :
436ci lsx block
etp 255cc heads .
wet sump kit on it .
sold cam .

and do i have to use two 60mm W.G so i can control the boost right on it . or just one 60mm will be fine with it .

and what is the best gears you are using for the 1/8 mile i have 3.55 right now on my M9 rearend .

Thanks for the help .

Phil99vette

iTrader: (11)

1.32, 3.5 with 30" tires.

street_tuna

isnt 1.32 to big for the kind set up ... and am using 29.5 x 10.5 hoosier will the 3.5 will work on it .

Fireball

iTrader: (21)

if you have a matched setup...the 1.32 will work just fine with a 43x motor...thats what Phil uses on his 438....spools VERY fast

venom ws7

iTrader: (13)

Listen to Phil and Fireball they know what they're talking about

Great setup BTW do live in Kuwait?? Are you building this for Bahrain or Qatar??

veee8

iTrader: (40)

Went with a 1.32 A/R and 30" tires for my my 427 and 106mm this year.

Steve Burger

iTrader: (33)

We just talked with Precision on this. The recommendation is 1.32 for a footbrake car. It will spool faster. They did say the transbrake car can take advantage of the 1.50 AR depending on converter and RPM range.

6techniques

iTrader: (7)

+1.5million

What car are you running this setup in?

Phil99vette

iTrader: (11)

On a 427-438? I highly doubt you'll see anyone running a 1.50 AR and going fast with a 427-438". Maybe on a 525-550" big block.

Shawn @ VA Speed

iTrader: (3)

Yeah,a 1.50 isn't going to work properly on a small block.well maybe it would with one of those inefficient converters that have 25% slippage

ta02zx10r

iTrader: (19)

are you the same "street tuna" that did the gen tt kit?

street_tuna

no am jassim from kuwait .... my user used to be firehawk123 but am traying to get it back because i lost my email and my password hope i can get back soon .

so steve 1.32 will be the best option for my set up . and as far as i know that the engin is in the shop and the hot parts on the way to the shop and the wet sump to .

but i heard that for the 1/8 mile need somthing lower that 3.55 like 3.73 .

TwnTrboCE

iTrader: (43)

There had to be some confusion there... Unless your running a very loose converter. Leaving at 6,000 rpm and shifting it at 10,000. There is no way a 1.50 will work WELL on a small block car.

Tuna, a 1.32 is what you want. I would stay with the 3.55 as well. We run a 3.50 with a 315 radial with a 3spd. And are near the top of 2nd in the 1/8th.

Phil99vette

iTrader: (11)

I dont know who your talking to but 3.73s is bad advice for a turbo car. Run 3.50s and call it a day.

Steve Burger

iTrader: (33)

Yeah we have the engine and oil system.

I was just telling you what PTE told me. I will defer to the wealth of knowlege here on the AR.

street_tuna

Thanks every one , i spock with chuck and i told hem to go a head and order the 1.32 A/R 106mm .

but what am woryed about do i have to use two 60mm W.G so i can controll the boost more better .

Phil99vette

iTrader: (11)

I've got twin 44mm gates and can run the boost down to 4# without any creep. If you set the wastegates up correctly you dont need two 60s. One would probably work IF setup correctly.

street_tuna

Thanks Phil for the info .. i think that am going to but 2 W.G 60mm .