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

 

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

 

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.

 

good #'s

 

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

 

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.

 

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

 

That turbo ain't done 😈😈

 

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

 

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.

 

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.

 

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.

 

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

 

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?

 

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

 

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

 

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

 

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

 

Just picked one up! Cant wait for the install.