67dunn

Goodmorning, i guess i need to list where i was at with the car to give a idea where im trying to go with it
1970 chevelle full interior,
vintage air
dakota digital gauges
sc&c stage 2 suspension, vicking double adjustable shocks front and rear,
Mosier 9in 350 gear wavetrack.
On3 88, 4inch intercooler
high ram,holley dominator, 120 inj, dual 1000cc meth injectors one pre ontercooler one post
holley boost controler
btr 2 turbo cam
in tank phantom dual 340 pumps
mightt mouse catch can
circle d
4l80e
#4050 with me in it
made 726 to the tires last year on stock 6.0 this was my first turbo build and i have drove it on the hrpt 2 years now so about 6,000 miles and 5 drag strip passes, never made a real solid run had traction issues.but never the less i beat on it everyday and held up great.

This is what i have going on now and just want to see if what im changing makes sense
S480 .96 1.10
Thomas 427 the one on special this month
Cid intake
12-1800 pump or dual 400 in tank
what size injectors should I run
93 pump
i dont know if i will run out of injector or pump
my goal this year is to hang the tires, run low 9s and make the whole power tour

forcd ind

iTrader: (7)

I would think your fuel system is fine, if they are Holley 120's, on gas, you can push them
pretty far-I have been like 18 # boost little over 50%. I would think twin 340's would keep
up. But if they are Holley injs, and you switch them out, I would be interested in them.

67dunn

Thanks for the reply, i have a 55 buick we call sloppy 2nds thats my wifes car so she is getting all the parts i upgrade off mine. We ran the stock motor to 23# 1 time which didnt work out great but it stayed together all summer at #19, i feel like i was on borrowed time with it at that. I guess inwomt chnage the pumps for now and see how it does, i was on the fence about switching to a rear sump with more pump.

jordoza

Id go with a much larger turbo on a 427 then a single s480. The billet 80mm impeller will make 1300 yes but the turbine is going to get over run pretty fast with a 427. Atleast go with the 1.32 exhaust shell. This has to be a t6 right. Id personally go with a fi s488 atleast. Id heard they were coming out with 100mm turbine or already have it. Id call and talk to jose. If you wanna go cheaper i saw vsracing had a 94mm 113mm turbine coming out. I dont know how much but the s480 stuff is half what the name brand is. Just my 2 cents.

67dunn

Thanks i ordered the s480 from Jose a few weeks ago when i was using a 6.0 but it stillnhasnt showed up so i might call him and see if its to late to change.