What's this??

[RangerSVT]

How will you activate the injectors, full time, or with some type of pulse??
SVT

 

[CopyKat]

They will be boost activated in stages as I need them.

 

[CopyKat]

Started to turn up the boost today. Holly Rip what a difference even 4.5 PSI makes.

 

[BlackBII]

Sweet!

Burn any rubber yet?

4.5 psi would be equal to about 50 horses or so I imagine?

 

[Davis]

each # should be about 7% torque increase.

 

[IRKillroy]

what about HP gain?

and at 7% does that compound or what?

 

[Davis]

no that should be 7% gain off the stock tq per #, not compounded. and hp gains should be the same.

 

[rickcdewitt]

what happened with the coolant issue?

 

[CopyKat]

what happened with the coolant issue?

Fixed. It was a leaky lower intake gasket.

 

[RangerSVT]

Okay, maybe I'm dumb, but what are the benefit of recirc the BOV into the low press intake?? To keep the turbo spooling?? And the small fitting on top of the BOV, I take it thats the vacuum line port??
SVT

 

[CopyKat]

I set it up to recirculate so that I don't loose the metered air that has already gone by the MAFS. Dumping it to atmosphere will create a rich spike. This just sends more carbon down the exhaust and I've seen it cover the back of a car with soot.

 

[turbo cat]

some people have had problems with recirculation and some havent. I have my bov dumped to atmoshpere after the maf with no issues. this is mostly because I have my bov adjusted to only open to purge during throttle cut. You can adjust bovs so they stay open during vaccum (idle) and this would cause rough idle conditions do to unmetered air. The rich spike dosent happen on my setup because the only time my bov opens is when the throttle slams shut and the ecu cuts fuel over 1500rpm and over 140degrees for de-acceleration

 

[IRKillroy]

that's generally when a BOV operates anyhow... if you have it open for anything else you're kinda screwing up the system... a waste gate should be used to control the boost beyond PSI spikes from throttle closure.

 

[CopyKat]

Had the truck out on the street yesterday. I was only running 3 PSI but it sure gives a kick in the pants.

Im sure my injector trigger idea is going to work out just fine. Cursing down the highway I'm at about 10 pounds of vacuum. Once I start to push the throttle down a bit it jumps to 0, then when the foot is too the floor it jumps to 3.

 

[turbo cat]

that's generally when a BOV operates anyhow... if you have it open for anything else you're kinda screwing up the system... a waste gate should be used to control the boost beyond PSI spikes from throttle closure.

When you close the throttle you lose the energy that spins the turbine so the wastegate isnt going to help you there only the bov because inertia keeps the compressor spinning. Also some guys do use bovs as bypasses at idle. The vaccum from a closed throttle keeps the bypass open alowing air to bypass the compressor. This can help if you have long snaking pipes of intercooler and compressor before air reaches the IAC. Then once the throttle is opened no more vaccum=bypass shuts. Throttle slams shut instant vaccum and pressure pushing up on the valve.