Consistent on Nitrous?

[donsbad68]

How many of you bracket race guys run consistent on nitrous? I'm having issue with the times going plus or minus half a tenth to a tenth. I don't have to tell you guys that a tenth matters in bracket racing. Anyone with ideas on how to tighten up the consistency please chime in. Thanks.

Dustin

 

[bluevenom867]

Whats your set-up?

Biggest thing with nitrous for consistancy is gunna be bottle pressure and fuel pressure.Best way to keep your bottle pressure consitant would be to get a regulator,bigger bottles,and a heater.

Fuel pressure is obivious...big pump and a return type system.

If its carbed and a plate kit,try going to a square jet set-up and runing the higher fuel pressure,as little changes arent as noticable with the higher pressures.

 

[donsbad68]

I run two holley blacks, dual regs, nx hitman plate kit with purge and bottle heater with gauge and blow down. All are ran on the 125hp shot. Runs around 6.6 eighth mile.

 

[Woodrow]

you could elaborate what you setup is a little more, ie what are you using to activate the kit, if you are running any boxes, shifting on rpms or a timer. Also what are the rules at your track?

 

[bubba-dough]

Bottle pressure, purge and etc. Are you sure its the nitrous that is inconsistant? Is it consistant without spraying?

 

[donsbad68]

Car is dead on without the nitrous. It is a No/E car so there are no boxes. The system is activated with a WOT switch.

 

[RYC CUKR]

Do you run a window switch?

If not I would run one in conjuction with the WOT switch. That way the nitrous comes on at the same RPM and off, if need be, at the same RPM every time. That along with a purge and consistent bottle pressure should help make it much more consistent.

 

[donsbad68]

Can I run a window switch with the tight rules of IHRA No/E Class?

 

[RYC CUKR]

I don't know the specifics of those class rules but I would see if you could. If you can that is probably the best way to go.

 

[Woodrow]

Can I run a window switch with the tight rules of IHRA No/E Class?

I would, if you were ever questioned you could say it was for safety. Its not like a delay box or throttle stop so I wouldnt see the problem.

Are you sure its not something in the chassis when on the spray?

 

[donsbad68]

Chassis problems are still in question