camaro427-69

yeah but i donīt have to deal with 65mph speed limits as soon as i hit the german autobahn which is 20 minutes from my hometown but still you guys are right....spent 8 months of my life living in arizona and those were the best i ever had

Forcefed86

iTrader: (4)

Is it something you have to adjust on the fly quickly? A simple manual valve that vented all the boost would be the best route IMO. a 12v electric valve would be an easy way to do it on the fly.

Similar to this....

http://www.autospeed.com/cms/article.html?&A=2188

stevieturbo

Dont think you'd get an electric one capable venting enough air.

But I agree venting boost would be one of the easiest options

yenkomike

iTrader: (2)

what about a t in the procharger tube with an exaust electric cutout to vent with a flip of the switch. just a thought.

stevieturbo

I think some older BOV's operated via a throttle blade like those cutouts. So as long as it seals when required, it may be a possible option. It would certainly vent plenty of air.

Pocket

iTrader: (22)

Why not get a big BPV? Whipple makes a few

Hook it to a cable. You get tested, pull the cable opening the valve. No boost

camaro427-69

what about this? should work if it is not total cheap crap and if i just use it to bleed of air, i could just plump the whistle off and let air bleed off into atmosphere or back into the air intake part of my system. can i use that also as a bypass valve?

http://www.rallysportdirect.com/Go-F...Blow-Off-Valve

stevieturbo

Even though you're only using a P1 blower, I doubt that electric one will be able to flow enough air to cause the huge power reduction you want.

As Yenko said, the best electric vent option would be one of the exhaust "electric cutout" type valves.

My only concern would be whether they remain fully sealed under boost.

Search google images for "electric cutout" and you can see the various options.

Depending on blower inlet size, you could even place one in front of the blower itself with maybe a small hole in the disc or a stop to limit its closing.

Fully closed would be reduced power mode. Fully open normal mode.

QTP List a 4" version, so should be ideal for the blower inlet.

Forcefed86

iTrader: (4)

I agree... But 3-4 small electric ones should do it. And would remain air tight under boost unlike a cutout or a wastegate. You could also tie them in and use them as an actual blow off valve.

camaro427-69

im gonna get a rope into the engine compartment to pull at least 4 ignition wires off the coils to do the rest cylinder deactivation hehe. i think i have some places where i can start to work with and i think the summary of a 4500 rev limiter, a bit preignition pulled out and something that bleeds off boost or restricts the air to the blower would do the rest to reach my goal

stevieturbo

Whichever you choose, keep it simple.

Dont try and use multiple tactics.

I think a 4" cutout in front of the blower would be the best and easiest all rounder....assuming you have the room to fit it. And make sure the blade doesnt touch the impeller.

danieloneil01

Don't stop

stevieturbo

This isnt the 60's anymore.

The Alchemist

iTrader: (19)

The best way to do this is to not build any boost. So the trick here is to put on a blow off valve that you can manually open so you don't build any boost, and will stay at around 400rwhp. So make up a vacuum canister to store some vacuum with a one way valve, then when needed, open that vacuum source to the blow off valve and all the boost will be vented.

camaro427-69

gonna watch vanishing point again on dvd how to do that, instead of trying to trick out the cops with tech solutions

JoeMama's GTO

iTrader: (3)

The venting boost trick seems like it would be rather suspicious as well unless you got into some routing scheme. Even at 2000 RPM it sounds like a friggin hurricane, I can only imagine at 6500 RPM those cops would **** a brick. My vote is for pulling 3-5 degrees of timing using a toggle switch and limit RPM to 5k if possible. That should knock you down a couple hundred horse and no one would know the difference.

stevieturbo

Except a low rpm limit would be obvious.

Venting boost...big deal, it's supercharged it's supposed to make noise

Either way, there are many many options.

Project GatTagO

iTrader: (7)

If he is only allowed to have 350hp, then cutting boost is not going to be enough. Even NA a 6.0L should easily make 375-400rwhp. I think the best option is simply to limit RPM. Like he said, they don't know what they are looking at. I would even point the tach at 4000rpm. Doesn't the Holley HP have a "valet" switch option, where you can flip a switch and it defaults to a certain set of parameters including a lower rev limiter?

Andrew

camaro427-69

yep the holley has lots of in and outputs where i can adjust almost every parameter and trigger rev limiter or timing retards so thatīs no big deal. i just didnīt know if iīm gonna mess something up if i change things like timing too much. i already ordered a qtp 4" cutout that iīm gonna install into the air intake. but before i can strangle that poor guy i need to get it running because i am still in the buildup of the camaro and need to get some good numbers on the dyno for the fun times, after that i start to play with rpm/timing on the dyno. i just want to know all options before i finish all the bodywork.

thanks to all

Project GatTagO

iTrader: (7)

I think you will find the exhaust cut-out to be ineffective at sealing the intake at boost. The pressure in a NA exhaust system is not nearly as much as you will see under boost. I think you will have substantial pressure loss when you want it to be sealed off.

Andrew