ZHZ-416ci

Going to spry 150 (wet) on my 416cid, am I risking anything?

416cid (10.8:1 CR)
Stock fuel system
Nitrous Outlet plate system 102mm

Shoaf85

At least throw a racetronix fuel pump harness upgrade in it and monitor fuel pressure. Will be on edge IMO!

What does it make on motor?

ZHZ-416ci

I'm thinking in BAP!
It did 507rwhp and 519rwtrq (mustag dyno)

Turbo2L

I'd start with a 100 then step up in 25hp increments to be safe. I think you'll need a BAP for the 150.

ZHZ-416ci

Yea I'll start with 100 shoot and after KB BAP going to add 50-75 more
other plan is getting a stand alone system

highrolrcustoms

Im running a nitrous outlet 102 plate kit on my ls2 spraying 150 shot. stock fuel system. car has kooks exhaust, rpm cam kit, fast 102 intake...etc made 568/646 never ran out of fuel

ZHZ-416ci

For how long you ran on this setup?

highrolrcustoms

Ive went through 4 or 5 #10 bottles. My car is a weekender/toy so it only comes out of the garage once or twice a month so not many miles on current set up...maybe 500-800

ZHZ-416ci

The same here, only for weekends use and sure some street racing
I'll start with 100 and Ascending 25 shot.

Nosferatu

my LS3 bump with a BAP started failing me at only 575 RWHP (Mustang dyno). I've since gone LS7 pump at 640 same dyno and no issue I'm aware of at the moment.

1MEANGS

Weird. I'm making over 100 more wheel on a mustang dyno then when yours failed, & I'm still on my Grandsport pump, injectors that came w/ ECS Kit, and a BAP.

1MEANGS

Ask your tuner what he feels comfortable with doing. If you ask people on the forum this type of question your going to get a million answers such as my situation vs the guy I commented a post on. My pump is running strong @ well over 100 more hp at the wheels then when his failed. It's all irrelevant and comes down to what the tuner feels comfortable with. Some will push the duty cycle and be ok with it if AFR is decent and some need to see its got room left for safety etc... Good luck.

DOUG @ ECS

You have meth which is fuel.

1MEANGS

Correct! I was referring to Nosferatu when he said his stock LS3 pump failed @ 575 rwhp... & my statement was I'm over 100 more wheel than than on the same fuel set-up he had (meth, & BAP) when his stock pump failed.

C6David

I was pulling a 200 shot off the rail on my ls3. But my car is only bolt ons. No issue with fueling though. Id say for your 416 plus a 150 shot your going to need at least a BAP.

Nosferatu

yeah no meth at 575 it failed when the pump was used for extended periods of time....

This is from way back when...

https://www.corvetteforum.com/forums...power-why.html

Z06Brucey

Or don't pull off the rail. Run a stand alone for the Nitrous.