Remote Controlled Electric Exhaust Cut-out

[intelliGEORGE]

Ordered two tonight for the VE, can't wait. Will post install and demo once installed!

[global88]

Ok some info.

They sound great, but a nice way to get a defect notice.

The concept is now being used by some car manufactures but with a diffrent twist.

The units are fitted further down the exauhst system, at a point where they are between the first and last muffler to give less exauhst restriction at higher revs.

They are not remote operated, instead a vacuum sensor on the inlet manifold senses no vacuum at wide open throttle and electricly opens the valve.

They only then work when ya gun it automaticly.
They sound oh so great.

I can remember whos using them atm, Jensen i think but unsure.

[intelliGEORGE]

These units are remote controlled and rev triggered too, depending on how you set them up, as for defects... Thats the point of installing it. No cops = OPEN cops = CLOSED LOL!

[global88]

These units are remote controlled and rev triggered too, depending on how you set them up, as for defects... Thats the point of installing it. No cops = OPEN cops = CLOSED LOL!

Roflmao

Once they pull you over say "officer, noise? What noise?"

I bet he takes the next day off for a rest.

[SystemRat]

The control motor and vent shaft look a little unprotected to be riding around under the car. Not sure what its life will in the wet or covered in mud.

[covert]

Been using manual ones for about 10 years. Spring loaded to close, Cable to pull it open. Use a choke cable with a twist to lock, like in the old cars.

These ones would be nice. I usually drop the exhaust pipe of at the dump pipe for legal drags. I would not mind this for the street.

[AceR]

Been down this road and really the only people who use these things are ...well... goofballs who just want to get around in a noisy gutless car.They think if it sounds loud then people are going to think it goes quick. All it really does is focus more and more laws upon the modified car community.. A well built exhaust system can be totally legal and only give you around a 5 to 6 HP loss on a 500 Hp engine.Building a "sleeper" is the way to go these days..
How do I know? I've tested it...

[intelliGEORGE]

Been down this road and really the only people who use these things are ...well... goofballs who just want to get around in a noisy gutless car.They think if it sounds loud then people are going to think it goes quick. All it really does is focus more and more laws upon the modified car community.. A well built exhaust system can be totally legal and only give you around a 5 to 6 HP loss on a 500 Hp engine.Building a "sleeper" is the way to go these days..
How do I know? I've tested it...

I own a VE Senator Signature 6.0lt.

Engine:
LSX bow tie block stroked to 440ci
L98 Heads ported by Higgins
Custom camshaft
Pac 921 valve springs
Custom fuel system
Custom mafless tune
OTR cold air intake

Transmission:
6-Speed Manual
Textralia Z grip clutch kit
Rip shifter

Brakes/Suspension:
AP 6 piston front / 4 piston rear brake kit
Pedders coil overs

Exhaust:
Custom built
Long set of 1¾" 4 into 1 extractors
Hi-flow 3" stainless steel substrate Ballistic cats
Dual 3" Cat back System

Far from a gutless car.

The electric exhaust cut-outs give me the option to open the exhaust after the cats, purely for show purposes. AND MAINLY BECAUSE "I CAN!"

Still deciding whether I should go with a TT or supercharger setup.

[SystemRat]

Far from a gutless car.

The electric exhaust cut-outs give me the option to open the exhaust after the cats, purely for show purposes. AND MAINLY BECAUSE "I CAN!"

Still deciding whether I should go with a TT or supercharger setup.

Ah but does it have the really important stuff. Do you have neon’s under the body so it glows under there at night while the duff duff bass speaker is making everything around you drum to the beat too.

You also get extra points for a simulated racing fuel fitting cover (can be a stick on transfer) over the fuel filler too.

[global88]

Far from a gutless car.

The electric exhaust cut-outs give me the option to open the exhaust after the cats, purely for show purposes. AND MAINLY BECAUSE "I CAN!"

Still deciding whether I should go with a TT or supercharger setup.

TT

Its very common for V8 commodores.

Id be putting the valves before the Cats, but get caught with them open its a 10k fine.

In a turbo situation using them would really improve the flow, boost and spool up response.

Cats (ones that meet adr's) no matter how well they flow provide some sort of restriction.

You could gut them out with a screw driver and hammer but again its the $10k problem if you get caught. Very hard to tell if they are or arnt without removing them and looking inside them or analizing the exhaust gases.

Yes they have more than enough power as they are, and yes enjoy life and turn heads because you can.

She would be a torque monster.

I say go for it George, you only live once.

[AceR]

The electric exhaust cut-outs give me the option to open the exhaust after the cats, purely for show purposes.

That says it all.

[intelliGEORGE]

Ah but does it have the really important stuff. Do you have neon’s under the body so it glows under there at night while the duff duff bass speaker is making everything around you drum to the beat too.

You also get extra points for a simulated racing fuel fitting cover (can be a stick on transfer) over the fuel filler too.

Do racing stripes give me better street cred?

[SystemRat]

Do racing stripes give me better street cred?

Only if the car is red and has fluffy dice or a pair of silk pantys hanging from the rear veiw mirror.

NOS stickers are good too.

[intelliGEORGE]

Only if the car is red and has fluffy dice or a pair of silk pantys hanging from the rear veiw mirror.

NOS stickers are good too.

Car is not red, nor does it have fluffy dice or silk panties. But I do have a blow-up doll with a fluro yellow vest in the passenger seat for driving in the T2 lane.

[global88]

Here you are Intelligeorge, if your serious and in Melbourne (or prepared to send your car here), these guys are considered the best at tt Holdens.

Ive seen their work, check their site, look at the Summer Nats dyno results.

1895 RWHP!!!!!!!!! Get the picture?

I always laugh when ever i see one of their tt utes on Princes Hwy, on a Friday nite doing a midnight run at the cough "drags" cough.

Finding traction at ANY gear or speed is a joke.

Finding traction on a dyno was impossible.



Enjoy

[intelliGEORGE]

You are surely not pointing me in the direction of the same mob responsible for this?

[global88]

You are surely not pointing me in the direction of the same mob responsible for this?

Ha, i have heaps of footage on vhs where they were first developing some turbo combos.
When a turbine went, heads off to pick up the pieces.
Plenty of o ringed blocks that leaked, now they only use 6 bolt blocks when running 30psi to avoid blowby.

All in the name of development.

Have you ever sent a rod out of the side of a block?
Im sure if you get any 1000hp plus toy you will find its regularly on the edge of self destruction.
Anything producing serious power will require regular rebuilds to keep it alive.
Even the prostock boys rebuild after each run.

These guys are the best at tt combos, and im sure if you get a street setup you wont run 1800 hp like these racing fuel, max boost dyno runs.

[rob916]

Ok some info.

They sound great, but a nice way to get a defect notice.

The concept is now being used by some car manufactures but with a diffrent twist.

The units are fitted further down the exauhst system, at a point where they are between the first and last muffler to give less exauhst restriction at higher revs.

They are not remote operated, instead a vacuum sensor on the inlet manifold senses no vacuum at wide open throttle and electricly opens the valve.

They only then work when ya gun it automaticly.
They sound oh so great.

I can remember whos using them atm, Jensen i think but unsure.

Look up yamaha EXUP valve, Been on bikes for a long time, maybe an fzr1000 in about 1987. Controlled via two cables and a servo. Not for cutout reasons, for backpressure at low revs to get good bottom end power. The cables are good as it keeps the heat away from the electronics/servo.


rob916

[global88]

Look up yamaha EXUP valve. Been on bikes for a long time. Controlled via two cables and a servo.

rob916

Thanks for that rob916, i didnt know about that system.

Sounds great, infact better than a valve that just opens to reduce restrictions, as it 'tunes" the system for better output through out the rev range.



I think intelligeorge is more interested in head turning power, and why not.
If ya got it, flawnt it,

[rob916]

If you disconnect the cables and jam the valve open the bottom end and midrange turns to absolute crap. It works VERY well for street purposes. I think other bike manufacturers now use it on their sport bikes.