Hello all,

Nothing but tuning, building and headaches. We have been working pretty much non stop on our EVO. We ended up putting a fuel cell in the car last Friday to put an end to the fuel delivery problems we thought we were having. Didn't fix the problem. Got on the phone with AEM and sent them our maps. I was told they were beautiful. Nothing wrong anywhere. Got a new generic map sent over from them, car ran alright. We still have a very high end misfire, it would appear. After some tweaking of the map and further tuning the misfire is gone but in higher gears at high boost (28-30) the car still can be felt laying over a little bit. Decided to try and run it anyway. Today was going to be the day. Well it is raining and we had a track rental. Just called the track, cancelled. Nice. Hopefully it is going to stay clear for tonight, running the EVO and the Conquest if so.

Now on to the good stuff. Mike is back here for awhile, been hanging out all week. This is the guy with the bone stock head, shortblock that has Stage 4, BR580 kit an the EMS. Dyno 460 whp or so on an AWD Dynojet with it on race gas.

He came back for some additional tuning and to upgrade to the ballbearing turbo.

I did two tunes for the car, one on pump gas one on race gas. Pump gas was tuned to about 19 psi of boost. He showed up on 94 octane he bought on the turnpike. I say the gas was garbage as the timing I was able to tune the car to was VERY weak. Rather than putting in some really good 94 we have here locally we just went on to tune the car on racegas. I would rather have a car leave here with a weak tune in it than to tune it on the edge with the best 94 octane you can get and then have it blow up later from poor fuel.

Race gas was tuned only to 24-25 psi of boost. Stock bottom end and head I just don't feel any need to go higher. Most guys want a fun fast car, not a fast broken car. The car runs really well on race gas and O.K. on pump gas. We were happy.

Mike is staying with me while he is here. We were talking last night about how he wants to go 11's and I am giving him the old "HELL YA!!" Then the more I think about it the more I am thinking it is not impressive to go 11's with what is done to his car, not on race gas. I mean stock turbo'd EVO's are going as fast as 11.5's at 120 mph now on race gas. Many are running in the low 12's at 112-114 mph on pump gas.

I tell Mike, "Ya know what, we need to set that car up to run on pump gas and run fast, if it won't run 10's on race gas with what is done nobody is going to be impressed. If we can run 11's on pump gas with some good MPH then it will be impressive."

Mike agreed and that is what we started with this morning. I am always recommending alcohol injection, the Buicks love the stuff. I have sold some kits and the guys that buy them are tickled.

First thing this morning we throw one on Mike's car. We do a run with the new 94 from our gas station in it and datalog it on the EMS. The boost is at 20-21 psi and the knock count is pretty high, even with the WAY WEAK timing map that is installed in the EMS. We turn on the alcohol injection and log it again. Knock count is basically zero. I can tell this is going to be fun. I then add some timing to the map. Car pulls harder, much harder. Knock count is still basically zero. Hell with it a few more pulls and more timing everything looks good so we turn the boost up to just over 24 psi, same place we had it on the race gas. Uh-oh, now we have some knock count. We turn up the alcohol again, max it out and the knock goes away. I add a few more degrees of timing at 25 psi and quite a few extra degrees on the way up to it. HOLY CRAP! Now the car pulls. Unbelievable to watch the boost gauge sitting just below 25 psi and pulling this hard on pump gas. I ended up quite a bit short of the maximum timing I was able to run on straight 118 octane at the same 24-25 psi of boost. I did end up with enough timing though that this car is VERY strong. On good 94 I can usually get away with this timing map at maybe 18 psi.

Now for the sales pitch. IF you have an EVO, IF you want to run high boost, IF you have a hard time getting race gas, IF you have spent money on the car up and want a ton more power with NO adverse side effects, then you need to get this alcohol injection on the car. I am totally shocked at the results. The kits are $399. I don't forsee any of the turbo charged cars I own NOT having one of these kits on it at this point, it is that good.

I am anxious to see what this car runs tonight.

David Buschur
www.buschurracing.com

 

any more details on the alcohol injection. I do not know much about it.

Install simplicity?
How long does it last?
What kind of alcohol?
any other info you have to share about it.
pics?

Sorry for the lame questions but I am very interested.

 

yes, please more details on hardware, type of alcohol, how fast the alcohol is used up, ie how much alcohol per tankfull of regular pump gas do you forsee being used. Do we need a standalone or can we get away with a piggyback controller? How is it activated? etc etc

 

Also, if you can turn it off and on.

Will it work with only the AEM Standalone? If not, what others?

 

Must... have... more... info...

I'm running your BR440 and I can't seem to run the boost much higher than 20psi at a reasonable 10.9-11.2AFR on 93 octane without seeing the timing get pulled. I don't hear knock but when I log hard runs I see timing getting pulled pulled back. I'd like to try alcohol injection and see if I can run more boost once I get my head studs installed.

For those of us who don't run a standalone, how would the injection be triggered? Using a generic boost pressure switch?

 

How much power are you making now?

 

I've always like water/alcohol injection systems, I had one on my supercharged corvette and my Buick Grand national.. Makes for big power on bad gas.. the big problem is making sure you always got liquid in there or configuring your EMS or boost controller to lower the boost if the level is low..

 

It depends on the kit, I don't know who's kit that Dave decided to use (or if he designed his own)

However there are several options for controlling, 1 is using an output from the EMS to trigger it..

another option is to use a pressure switch, however its either on or off, and not conditional.

There are several controllers out there that can increase the output based on either a MAP sensor input, MAF sensor (Ford mustang style sensor), EMS output, or combinations of them...

I can tell you from personal experience that this is a very wise modification for anyone wanting to run pump gas and make good numbers.

 

I'm not exactly sure. Conservatively I think I'm in the 360 to 375whp range, maybe as high as 390 on a really crisp day. I'd like to see how hard I can push the boost and timing using alky injection without knock activity. Eventually I'll get the car on a dyno.

 

Ive thought aboutbuying this a few times. Something else always comes up though.

http://www.rjcracing.com/SMC_Alcohol...injection.html

 

Yes you guys can call me stupid but exactly where do you spray the Alcohol? Is it like NOS? Do you spray in the intake or after the turbo???? Im confused?????

 

like a nitrous shot, right before the throttle body.

 

I was planing on building my own water injection kit , and just running it off the utec spare solinoid..

 

Ok Ok, I still dont understand. If you are injecting alcohol into the engine wont it create a much leaner enviroment? Kinda like NOS wont everything burn hotter? How is ther no adverse effect? Someone please explain. I have 400 bucks laying around and would love to get this, especially since I live in Dallas.

Thanks

 

The alcohol actually cools the intake charge thus reducing the likelihood of knock and therefore allowing you to run higher boost, more advance, more compression etc.