47ford

On 3 78/75 here.... 3400 lb camaro with me in it. 6.0 ly6 forged Tsp rods and wiseco pistons. Lifted a ring land on stock parts and have yet to run it withforged stuff.... went 10.71 @ 130 with a spinning 1.71 60ft with stock internals and pump gas. track was **** and was oiled down twice before 60ft mark.... this was on 8-9 psi

jksstar

iTrader: (1)

I went 10.8 at 128 on 9/10lbs SBE, around the same race weight

03LQ9

On3 78/75, stock L33 5.3l with stock LQ9 6.0l cam, 3600lb Buick Grand National, 4l80e, 3.25 gears ford 9", 1.45 60ft 6.3 at 112.95 mph in the 1/8th off the foot brake. Never ran it in a full 1320. This was at 17 psi, e85, non intercooled, truck intake with water injection.

jaywill

iTrader: (5)

good #'s

jksstar

iTrader: (1)

Not bad, was that all the turbo had or just as far as you wanted to push it?



I'm hitting the dyno Thursday , gonna turn it up to mid20s or so on 116 fuel and see how far this turbo will go

03LQ9

That was all my fuel pump had, its a single Walbro 450. I had it at 19psi on the street and it pulled harder but the afr was getting lean.

jksstar

iTrader: (1)

This was 93 with a water meth kit, 17.5 lbs , th350 trans BTR stage 2 turbo cam

At this boost the car has went 110mph in the 1/8

put some 116 in it and picked up some power but think this turbo is done on my set up and maxed out my injectors

Game ova

That turbo ain't done 😈😈

jksstar

iTrader: (1)

On 20lbs with 116 it made around 720, we went to 22lbs and only picked up around 5 hp. i will say I was at 103% duty cycle on my injectors at 22lbs, so maybe my tuner kept it soft at that power.

car has a th350 with a loose converter and was on a 25 x 10.5 drag radial. So the combo is eating up alot of dyno numbers

yenkomike

iTrader: (2)

that's about right thru an auto. it seems to flatten out at about 18-19 psi and extra boost has a small effect on power. but on our Camaro it just makes more heat for the intercooler . if they made a bigger ar housing I think it whould still climb.

jksstar

iTrader: (1)

Think I'm gonna order the Huron Speed Billet 7875 or on3 billet 8475, I have a local guy drying to buy my 7875 for $300 so would be lot of money to upgrade now.

YoungDart75

I like hearing this considering I just got a 7875 brand new in the box here local for my swap for $300, so I'm looking forward to getting it started.

jksstar

iTrader: (1)

Its been a great turbo for me, beat on it for over a year and makes great power

ls1charged

iTrader: (8)

is anybody else's on3 7875 as loud as mine? granted i have a full exhaust but when i start spooling the turbo is much louder then i anticipated, you dont hear anything else but spool.... dont get me wrong i love it, i was just curious if this is a notoriously loud turbo?

Game ova

I actually think it's pretty quiet. At least in comparison to the precision I had.

red fury

iTrader: (1)

I agree with Game ova, its fairly quiet....

sbcgenII

iTrader: (1)

I think mine is starting to get louder now after a year of DD duty.

Game ova

Going to see what this turbo is really about Saturday morning.

1320king

iTrader: (4)

Just picked one up! Cant wait for the install.