I think very few are because of the horror stories created by poor installations. That and they're scared it'll eat the coating off their roto.... Oh wait.... Nvm.

 

Ya Cory I sure would run a fogger pre compressor based on the information and articles from very good sources Alan has found; killerbee, cosworth and someone else I forget lol....already. Let Alan do the spade work for you.

there are three things; 1 the science, and this so far is well backed up by Alan with the information so far .
then 2. there is manufacture and installation of the parts ( simple nozzles are not the best atomisers)
then 3. there is the field testing tuning and development - cant be beat for actually proving the theory and the parts.

So I am thinking: where are the similar three things to back up meth injection into the IM or charge tubesm post compressor on turbos?

 

Should add that is is an advertisement disguised as an article. Also, he's very bad at math and throws a lot of theoretical concepts out there as sure fact.

 

Good point. Maybe alan can send you the cosworth info etc. Cosworth are well respected world wide and prolly don't screw up the math.

 

Yeah, I'm not saying it can't be beneficial, but this advertisement significantly overstates the gains for most practical purposes.

 

Not argueing that. But that doesn't mean he's not right on when it comes to the how and why.

Here's the cosworth article. As John said, very few people would try to declare their concepts and results as fictions.
http://www.lolachampcar.com/pci_ring_fueling.htm


ps: I think you guys would be pleasantly surprised of you relocated your 5th injector setup to run PCI... What's it hurt to try?

 

That page is more of the same, though. It points out how the charge temp starts dropping under load because the ring is spraying. However, the same thing happens on all supercharged LSJs and all LNFs with an aluminum lower charge tube. With very little air flowing through the intake manifold or lower charge tube, it tends to soak up engine heat and show high iats. Once airflow is increased, the temps naturally drop, without spraying anything in the turbo or blower inlet.

 

To below ambient?

 

I'm skeptical of that data. There are too many variables that can affect the accuracy of those readings.

 

They were only running about 10psi. Makes things alot easier.
Bottom line, I don't understand your resistance to the subject. This whole thread is about pushing a zfr farther.
It's non refutable that PCI increases compressor efficiency.

Have you guys tried any firm of PCI? Surely you have some old k04's you could slap on a car some evening ang give it a whirl. What is there to lose other than a few hours of your time?

I know you're a smart guy and I respect you. I guess I'm just saying if you don't want to give merit to the possibility then fine. But at the very least, explain why.

 

I'm not resisting the subject. I'm resisting the all too common phenomenon that repeats itself in every market where people start acting like water injection is magic and makes big power gains. Then absolutley no one in that particular market runs it successfully. Then it repeats in the next market exactly the same. Does this mean there are no gains to be had? No. My point is that the gains will be minimal at best.

 

Meh. Ill take what I can get. Looks like I've got some work to do.


One thing ill add though: has ANYONE here tested a proper PCI setup? Not that I've ever seen.

And Matt, have you guys even experimented with it on an lnf or lsj-t?

 

Going all out, 3gph pre compressor, 3gph direct port, spraying 75% meth.

Going to get my tuner to dyno with just the 4 spraying then hook up the pre comp and dyno then again to see the results.

Man cant wait until spring

 

So 5 3gph nozzles total?

 

Yup.. 5 - 15gph total. If it blows... ill rebuild. but the key is to tune the 4 port first, then retune for the pre comp to see the differences. If it isnt a big gain etc... I believe i should be fine. if the differences are minimal then i will remove the pre-comp nozzle.

 

How are you orienting the PCI nozzle?

 

~5" away most likely top oriented. From my discussion with Rodney AIS, it really doesnt matter since the air flow is so great at that point. He did mention that i shoudl start hitting around 16psi though.

 

Yeah, don't want it coming in till you're nearing 65ish% of peak boost.

 

ive read quite a bit about spraying directly at the turbine, but id have to make a bracket up to hold it etc. I read some good stuff on aquamist forums and a few MS3/6 forums seeing so decent results.

 

If you have an intake it would be easy to drill into that and tap a meth bung.

 

thats the plan, I HAD a hahn CAI, but just bought a K&N SRI.

 

Sweet

 

Did you mean compressor? I don't see anything good coming from spraying meth on the turbine wheel.

 

^ Yes, that is what i meant.

 

I think a fogging ring in front of the turbo impeller would be okay. But I dont use meth anymore. Pita deal.