Just a quick survey to see who is running what engine management system, and what they like best about it.. I personally will be running the Gen 7 with WBO2 and Knock module, with a 2 bar map for starters.. any input on tuning advice with this system for FI is greatly appreciated.

on a side note.. what plugs are you guys running with boost levels above 14 psi? I have used about all of them and as tacky as it sounds I have had the best luck.. ie.. least misfires and longer life with the cheap old autolites for 0.99 cents a pop. I would like to hear some results with other plugs in FI systems though.. TR6 or champions.. denso.. whatever you guys have had good luck with!

Chris

 

Good choice using the wideband option. If you have not yet purchased the unit you may want to make the better move to the BS3 or FAST unit. Call any dealer that sells all three units and ask what is the best unit for you and I doubt anyone will recomend the GEN7.

 

I am using a DFI gen 7 with wide-band, 3-bar, and turbo. I love it, easy to dial in and keep there. Let me know if ou need a base 355 CID turbo program.


Wingnut

 

I run a gen 7 on my boosted 355. It actually has better resolution than the fast and is much more user friendly.

Accel Gen 7, user can config it, (sequential/wideband/knock.....) only logs 6 channels at a time. Does it all and even makes a start up program for you

fast. needs to be bought how you are going to use it. Has better datalogging as it can log 16 channels. Pretty much same as a accel but does not have some of the street functions that you may want. More of a race car package.

Big stuff 3, if you are running a electronic trans get this one as it will control it also. (down side? BIG money but Meany is the king of FI)

Bottome line is if you don't know the difference the accel is the best one as it can grow with you. Big stuff 3 is not for a beginner as it has things you will never need.

There are a bunch of other differences but these are just a couple. You might also want to get whatever someone local has so you can get some hands on help.

 

How can you say gen 7 isnt better then Fast? Fast is a Gen 6 widows based system. When the Fastest N/a Lt1 is running on Gen7 as well. As a matter of fact my car is over at Lethal RIght now getting tuned and dynoed. I just thought id let the expert do the tunning. As for the plugs i wish i remembered the serial number but they are Autolites racing plugs with cut back electrode i think its like AR24XX dont remember the last 2 digits but so far so good oh yeah and they are 6 bucks a piece out of jeggs, i ordered mine from napa though

 

Wingnut,
I may definately take you up on that 355 tune here shortly.. are you also running the knock module on your setup? I am going to run it just for a safety factor.. i don't trust my tuning ability just yet with the DFI. You8r running a little more turbo too.. compared to the T74GTS I Plan to use.. I imagine you are moving a good bit more air up top! but sounds like a very nice combination.. I am still in the maket for a cam for my project.. and recently saw that Jose was making some great numbers on a 218/218 grind.. feel like sharing your specs or are they top secret. if they are I understand.. soem people are not so friendly with numbers like that..lol me I won't be able to keep my mouth shut about every nut and bolt on the motor when shes all done.. lol

anyways I appreciate the replies everyone!

Chris

 

good luck bro

 

Littleredz,
Thanks man! I aprreciate it.. I have taken my time and not skimped anywhere, so hopefully ythe design will work well, it is a little different then the F-bodies kits available as no one makes a kit for the C4 Corvette yet, so everythign is all self fabbed, but with as much research on V8 combinations and some solid knowledge from supras and other import turboed cars, hopefully I will be able to make some respectable power and maintain some very much desired streetability.

as for the plugs.. I will definately search for them.. as much luck as i had with autolites, i would gladly pay the extra money for some lasting worthwhile plugs i don't have to continuously change due to fouling. I know with the higher cylinder pressures forced induction cars see, a slightly fouled plug can reak havoc when tuning.

I am running the dual sych distributor with the DFI for true sequential fueling so the 83 lb injectors should be able to maintain good idle qualities without loading up the cylinders, and I can eliminate the opti all together finally from my car.. not a fan of those units from a reliability standpoint, although i can swap one in about 2 hours start to finish now... lol

anyways I appreciate all the info!

Chris

 

Give me some time dude and I will get thoes specs (I will PM them to you). Also, I am not using a knock module - to much noise from the pistons. I will share all the info I have. If you want the basic 3-bar, wide-band, 355 tune I will send it to you. However, you will be surprised how close Calmap will get you if you follow the fuel map builder.

TurboTA93@***.com e-mail me.

P.S. car is for sale 26,000. or partial trade.

http://community.webshots.com/user/turbota

Wingnut

 

I am happy with my stock PCM/MSD/low-Z converter. Frankly, I don't see how it could run better. The only reason I could see to go with an aftermarket system is if I wanted to spin it over 7K. As far as preferences for aftermarket systems, I have the most experience with the Electromotive TEC3. I like the Electromotive system a lot. Very flexible and reliable. I am going to use one on my race car this year which should prove interesting. The car is an "old school" BBC running an alky with a carb. What I am antcipating is that going to EFI will give a few more hp, better low speed operation, and most of all better consistency with changing conditions. I am going to do before and after conversion dyno and track runs with logging of AF ratio and EGT's.

Rich

 

What I like about the Gen 7 in the real time data log feature of 7 inputs and frame by frame play back which allows auto fuel map target adjustment at the push of a key. Also the on-display cluster offers quick adjustments on fly and allows you to lock in spark timing. On the dyno "by the hour" the DFI has alot of tools to help you dial the car in and keep it there. Switch injectors? Switch fuel? No need to rework the fuel map. DFI also has tools to help you make the switch in a few minutes.

I am not a DFI sales man, just been working with calmap stuff for years. I wish we had this system back in school when the "formula team" was putting together the car for an engineering project. Would have saved a couple weeks of tuning.

Wingnut