so ive had this idea i been kickin around.. they make electronic exhaust cutouts that reroute your exhaust at the flick of a switch.. what if someone rerouted it into a turbo setup? you could be racing some punk ass in a honda civic and flip a switch and take off in to outer space!! (well not literally, but u get it..)
one exhaust would be routed just straight pipes, and the other turbo.. just reroute the downpipe back into the other exhaust.. the intake side could just flow right through the turbo, even when the turbo is not engaged..
having a laptop at all times would be a must. just have 2 tunes loaded onto the same program and set each one up perfect.. one N/A and the other for BOOST.. develop the program so that u could remap ur ECU with the press of a button.. so u can simultaneously engage the turbo and remap ur computer..
..and..
GOODBYE!!!
..not that would blow some peoples minds.. imagine how ud feel if someone ganked you, mid-race!! ..ud be mind f*#!ed lol
i dunno.. i might not even be possible, but itd be awesome to have. someone should try to figure this out.. for sure!
Edited 1 time(s). Last edited Wednesday, August 04, 2010 5:53 PM
sr71blackcav
Sounds pretty retarted to me.........
P&P Tuning
420.5whp / 359.8wtq
^ im with him. sounds pretty stupid
BuiltNBoosted wrote:^ im with him. sounds pretty stupid
x2
"Straight roads are for fast cars, turns are for fast drivers"-Colin McRae
x3
its called one minute I'm only part throttle with no turbo. I get great gas mileage...
The next minute I step on the gas and boost comes along...
Yeah... so.... WTF?
blackbirdracing wrote:x3
its called one minute I'm only part throttle with no turbo. I get great gas mileage...
The next minute I step on the gas and boost comes along...
Yeah... so.... WTF?
x2 (so does that equal 6?)
Are'nt ALL turbo's on demand?
@!#$ I got BETTER gas milage on the highway AFTER I turbocharged my 2200... So what of it?
Not to mention it would be impossible to reflash the ROM in the PCM without shutting down the engine first... and do you know how long it takes to flash our PCM's? Typically at least a minute and a half...
So what would you expect to gain from this?
Buildin' n' Boostin for 08' - Alex Richards
sr71blackcav wrote:you could be sracing some punk ass in a honda civic and flip a switch and take off in to outer space!! (well not literally, but u get it..)
i know, right? those pesky honda ricers are gay. i love to race them and blow them into outter space!
/
Edited 2 time(s). Last edited Wednesday, August 04, 2010 5:56 PM
Oldsmobile all motor > Saab/Opel boosted
Even if it were possible, why would you want to..
Not to mention that when the turbo isnt seeing exhaust gas youre still going to have to suck air through the turbo inlet and through all of the piping and intercooler before it gets into the engine.
I worked with a guy that had a M3 bimmer set up this way.
Both the intake and exhaust were routed via computer controlled valves.
Everything was ran off the carputer he had in the dash. Touch the stock button on the screen and the exhaust was cut from the turbo and redirected to the back, the intake would switch from the intercooler piping to a regular intake and the programming on the ECU would be changed.
His set up was pretty impressive to see, but was a great loss of the over $10k he paid to have it happen.
The kid had more money than brains.
The craziest part of the whole thing was his ability to switch it while driving down the road(unless under boost).
Unfortunately this was a couple years ago and the pictures I took are long gone now.
"Oil Leak ? What oil Leak ? Oh, Thats Just The Sweat From All The HorsePower!!"
You wouldnt have to retune it your engine would just be ran off of the same tune because with or without boost the fuel and ignition tables before it see's positive pressure will be the same. I think it is a interesting idea but i dont see the benefits. Maybe noise if you wanted to run one side through a very quiet muffler and have the turbo side dump straight out. Im thinking it would work best rear mounted. Still dont see why you would go through the effort.
Remember... One test is worth a thousand expert opinions.
Josh A wrote:You wouldnt have to retune it your engine would just be ran off of the same tune because with or without boost the fuel and ignition tables before it see's positive pressure will be the same. I think it is a interesting idea but i dont see the benefits. Maybe noise if you wanted to run one side through a very quiet muffler and have the turbo side dump straight out. Im thinking it would work best rear mounted. Still dont see why you would go through the effort.
No. Unless you are running a speed density pcm, there is absolutely no way to get a good tune out of this without reflashing for the boost pressure you intend to run.
I have no signiture
He wants to do something ridiculous who said anything about a good tune? And i dont understand why that would be a issue anyways. If you are refrencing a map sensor and rpm like all of us with jbody's are then anything below 14.7 for a map reading gets the same fuel and ignition with or without a turbo. Can you explain to me how i am seeing this wrong?
Remember... One test is worth a thousand expert opinions.
I cant believe anyone is actually still posting in this thread.
Josh A wrote:He wants to do something ridiculous who said anything about a good tune? And i dont understand why that would be a issue anyways. If you are refrencing a map sensor and rpm like all of us with jbody's are then anything below 14.7 for a map reading gets the same fuel and ignition with or without a turbo. Can you explain to me how i am seeing this wrong?
You're first mistake is in that the J-body pcm doesn't reference the MAP sensor in PE (i.e. Speed Density) unless you have a GM Supercharger reflashed PCM or the odd-ball 97' PCM. Otherwise, all J-body PCM's reference the TPS (i.e. Alpha-N) for fuel. So, at 100% TPS without the turbo is going to have completely different fuel and spark requirements than 100% TPS with the turbo.
The second mistake is that the stock MAP sensor only reads 1 BAR of pressure, better known as atmospheric pressure. So even if this were a speed density PCM, he would need to install a MAP sensor with higher than 1 BAR (e.g 2 BAR, 2.5 BAR, etc.) in order for the PCM to read positive pressure, and he would then need to rescale the pressure bins to account for the different sensor. Were he to do this, then he could probably get away without needing a reflash each time the exhaust cutout valve is opened or closed.
...but yeah this is a pointless idea in the first place.
I have no signiture
Ok so i hoped on aldata real quick just to make sure im not crazy and...
ACCELERATION MODE
When the driver pushes on the accelerator pedal, air flow into the cylinders increases rapidly. To prevent possible hesitation, the control module increases the pulse width to the injectors to provide extra fuel during acceleration. This is also known as power enrichment. The control module determines the amount of fuel required based upon the TP, the ECT, the MAP, and the engine speed.
If it relied just on tps nothing would make sense...
Remember... One test is worth a thousand expert opinions.
sigh...
I have no signiture
Remember... One test is worth a thousand expert opinions.
isn't that was Nitrous does?
So.. Is it fair to say i agree with
most of the stuff you say and i think it is kinda coming down to the way things are worded and well.. i dont really care about anything in this thread because it is pointless and this is off topic .. and argueing is kind of stupid...
Remember... One test is worth a thousand expert opinions.
What is the advantage to a setup like this? More power down track to "surprise" your opponent? I have this great idea for that...
I call it the boost controller!!!! I can control my boost settings to give me more power when I want it. ESPECIALLY so I can show those "ricers" all of my power down track!!! I could change it from low to high boost or put multiple boost settings to do whatever I want!!!
Oh wait, already been thought of... DAMN...
Street-Legal 2003 Sunfire 10.58 @ 139 MPH
