L-82kid

I recently changed my nitrous tune up and wanted to spray it on the dyno first to make sure things were safe. Made 2 pulls with it the other night and was pretty happy with the results.

I'm running a mild 350sbc with old school 144 blower. When I first put motor in the car made 386rwhp 406rwtq with pump gas and 6-7psi of boost. went 11.80 @ 116mph with a stick trans.

Last year I added nitrous and with a 75-100hp jetting I dyno'd at 493rwhp and 554rwtq on pump gas. Spray at track from 2nd gear on and went 11.2x @125mph.


I just stepped up jetting for a 125-150hp shot. Added 5gallons of VP 110 with 5 gallons of 93 pump gas. put in fresh NGK-8 plugs gapped at 0.020". Set my Mallory box to pull 7deg of timing when nitrous hits.

ended up making 560rwhp 655rwtq. AFR was fat around 11.5-11.9 range. pulled a few plugs after each pull and burn mark looked good.

only issue I have is the damn supercharger belt was slipping, and on first pull it jumped of tensioner. I need to figure out a custom tensioner set up.

Here's copy of my graph:



Heres a video:

cardo0

Wow u have a lot of work in that car kid. I think u can find better times once u sort things out. But u have all the hard work done. Congrats!

ajrothm

Killer power! You'll DEFINTELY go in the 10s at close to 130 on that power. Congrats! Nice to see something old school still being built and raced. Keep us posted.

toddalin

Wow! When it happens, it happens quick!

Les

Scary good numbers! I can't wait to see what you run at the strip.

L-82kid

Thanks guys.. i just need to find a way to keep supercharger belt from slipping and jumping off. Its already a 10rib but old style with tensioner mounted off water pump not blower snout.

63mako

Graph shows peak torque 565. Nice numbers still.

LS4 PILOT

Amazing job!

With a old school 4 bolt block ?

LS4 PILOT

His number looks right to me .....graph don't lie

427Hotrod

Sounds nice. That's going to be a fun ride in 3rd and 4th gear!!

JIM

Les

I had to look twice. The HP numbers are to the left of the graph and the torque numbers are at the right border- different scales for each side.

L-82kid

That graph has hp scale on left and torque scale on right. Not sure why they dont match up. I exported graph and emailed it to my phone from dyno pc. I'll have ask my buddy about the setting on graph screen here is a data chart of one of the dyno runs.

bluedawg

That's flat awesome.

63mako

I see now. Different configuration than I am used to.

JoeC427

HBZ_81_C3

claysmoker

What rear end is in your toy?

HBZ_81_C3

If this question is directed to me, I have the Dana aluminum rear.

claysmoker

Thanks, but was looking for what the OP has. I noticed on the dyno sheet a reference to Ramadei. Could be one of his diffs?

bluedawg

Same family.