Brettus

iTrader: (2)

I wonder if this is what you would want - something that shuts off the fuel with engine under full boost ...... hmmmmmm .

9krpmrx8

iTrader: (46)

I dunno, what if it just killed the ignition? Could be scary if it killed the EPS. But I am sure there is a way to do it.

Harlan

iTrader: (3)

Could just run a pressure switch that disconnects the ESS. It will instantly kill the ignition.

9krpmrx8

iTrader: (46)

I wonder if Dannobre has something like this on his ride.

TeamRX8

iTrader: (25)

trying to remember how many years ago I suggested the idea and got booed off the stage, lol

kma5783

iTrader: (7)

I assume you're no longer using the air pump so you can use that solenoid and rewire it to trigger off of a fuel pressure gauge warning light, Stored vacuum in that canister would then open your BOV. Simple yet effective.

Brettus

iTrader: (2)

great thinking - had actually thought of using a vfad solenoid but it would work much better if i had the BOV line going through that and then connected the vacuum tank to the dump port . The solenoids on the tank are no good because there are only 2 ports.

The same valve could also be used as an overboost protection with the addition of a pressure switch.

Brettus

iTrader: (2)

Think I've done as much as i can and this is as good as I can get it - within a few hp.

After reviewing / analysing many logs I have come to the conclusion that the Brettspeed port modification has done ............................ Nothing good .
Low end seems to have suffered a little and top end seems about the same . I'm pretty sure a dyno will confirm this.
Disappointed . Now considering pulling it out and going back to stock port runner.

TeamRX8

iTrader: (25)

it will likely only cause you a problem down the road if you don't

thewird

I told you it wasn't a good idea >_>

theiwrd

olddragger

iTrader: (3)

least you had the guts to try something you thought may help. Kudos to ya.
pm sent.

Brettus

iTrader: (2)

If I believed everyone that had said that to me ......................

Brettus

iTrader: (2)

Cheers OD . I thought i saw something in my dyno of a few years ago that made me think it would work - guess it was a red herring .


Swapping it out now and leaving everything else the same will tell the full story . At least I made it so i could pull it out without disassembling the engine

wcs

iTrader: (2)

Sorry to here you're disappointed in everything Brett

thewird

hehe

Brettus

iTrader: (2)

Well - not everything ....
*The engine build seems solid
*The gearbox has worked out well .
*Stock fly feels better

*The larger compressor wheel : in hindsight I think I should have left the 57 trim in there . Removing the port mod will give me a better idea though.

Harlan

iTrader: (3)

Since it didn't work out are you willing to tell the specifics now? I'm really curious.

kma5783

iTrader: (7)

If I remember correctly the solenoids on that tank actually have 3 ports, one on the back is capped off, depending on how those ports are configured you may be able to make it work. I would have to take one of the solenoids off and apply voltage to it to see which ports open and close at what times.

Harlan

iTrader: (3)

They have three ports. The third one is in the back covered by a black plastic plug/filter. Pops right off.

kma5783

iTrader: (7)

That's what I thought, now if both the front and rear ports are inputs(One for the Vac Canister and the other for Manifold vacuum/pressure) and the one that points toward the passenger side is the output(to the BOV/BPV) and the solenoid switches between the two inputs it will work.

Mawnee

Props Brettus. Whether it worked or not, you have tested something for the community. Now we can move on to other mad scientist ideas to overcome the limitations of the renesis

I've always wondered if it were possible to "yin and yang" the divider into a bigger port divided diagonally or even horizontally.

skc

Good effort Brett. Interested to see the differance after the swap

olddragger

iTrader: (3)

the plastic vacuum canister with the solenoids can actually be cut off that uim and relocated.
The one for the vdi is not being used --is it?

Brettus

iTrader: (2)

Yeah - my bad . Had one in my hand but didn't see the extra port hidden under the cover!

TeamRX8

iTrader: (25)

The assembly unbolts from the UIM. If you want to separate it from the oil sump filler/vent then you will need to cut the two apart. Either that or build a custom one.