True bolt on FI system for a Buick 215, 300, 340, 350

It's really pretty simple but it does help to have visual instruction. The DVD should be in the kit but you can go to their website and then to videos. Look for "DFI Parts 1 & 2". I'm wearing a yellow Accel shirt driving a red Cutlass Droptop. You'll see me/it in the opening window.

Good luck and keep us posted!

Mark

 

Mark....you got me excited about going this route. The link for the videos is here
http://www.mrgaskettv.com/featured_landing.php?reset=true

Select the DFI videos and scroll to the bottom. Marks videos are the last two.
Great job on explaining the basics. My parts should be here in a week or so and the intake manifold should be almost finished up. I have a set of 24#hr injectors and a Ford 5.0 throttle body at home in Illinois, so they will not be on the intake when I finish it up.

 

If you're planning on using the Ford stepper IAC you can't. One of the few things the Thruster won't do is control a Ford stepper. You need to use a GM square 4 pin or GM/Chrysler flat 4 pin IAC. Just a word of note, a 4 hole throttle body will give you better drivablity. I'm sure you got the Ford one cheap but just an FYI.

I'm guessing your hp is under 400? Then 24's should be fine.

 

I was planning on running my existing 350 with the EFI first to get the hang of tuning it. I am building a 11:1 350 that I would like to run E85 for the street and spray it. I wanted to learn the tuning on a motor that was not going to cost me tons if I get the tune a little bit wrong.
The Ford TB is cause I have a 5.0 Ford fetish that has allowed me to stockpile quite a few 5.0 parts on the side.
Accel makes an adapter to use the Ford TB with a GM IAC and GM TPS. I'll be fine. The idea was to use the Ford TB so I could one day get a Burton Machine twin kit and have a simple to plumb system and use a couple of intercoolers I hae stockpiled from T-Bird SC's.

I am trying to think things out ahead of myself. It's all for a purpose but if I was going to just go NO2 and motor, I would leave it as an Accel TB.

I have plenty of time on my hands but, no car in Australia....this allows me the luxary of thinking too much.

 

The problem with a single-bore throttle body is that the slightest touch of the gas pedal will throw you back in your seat. Even with a progressive throttle (like the ones most commonly used on 4-barrel manifolds), it takes a feather-touch to pull away from a stop sign without jerking the whole car.

But, it's been done...

-BC

 

About a bizillion times...cause every car 5.0 Ford and every LS engine is single blade TB. There is just one thing wrong with the single bore, and that is Accel did not design the Thruster series FI system to work exactly with the Ford TB so there may be some drivability and or tuning issues. Use one with a Mega Squirt or a EEC-IV and there is not an issue.

 

I totally disagree! All I said was it won't do a stepper. Yes you can get the adaptor and it will work fine.

Quite the contrary, the Thruster/Gen 7 will give you better driveability than any EEC-IV or especially a MegaSquirt!! Yes you struck a nerve. If you look, you can access 8 transient fueling tables, more than anybody in this price class and a few others above. That will take care of any driveablity issue you may encounter.

Don't want to be a jerk, I just get preturbed when people assume, that's all.

The Thruster will drive better than anything around, guaranteed.

 

So what is your price-point and details on a EFi that will handle 1200+HP under boost?

 

There is a common miconception as to how much hp a system will handle. It all depends on the ability to control a large injector accurately and how well it will drive.

A Gen 7, the Thrusters' big brother controlled a Twin Turbo LS to 2058 hp in Hot Rod a couple years ago. All the same drivers etc are in both, only difference is software.

 

Thanks for the response, interesting info so how much for a Gen 7 MPFI setup?

 

You'd be fine with a Thruster. That would be $1750.00 plus shipping. That's a harness, ECM, and sensors. You'll still need a fuel pump, rails injectors, manfold and throttle body, distributor etc. You can do whatever you want to there. You would need something with 2 pickups to run in sequential. Accel makes a dual sync for Buicks, #77301. A Gen 7 would be about $600.00 more.

Lighteningbird probably payed less from Summit but they can't help you tune it, I can and will.

Hope this helps.
Mark

 

WOW! I figured this would be the catch-all and it was truly intended for Chev/ford/mopar.

Is the dual sync a complete distributor or a conversion for an existing one? This system would then offer true sequential firing?

 

This system is not designed for a anything. It fits everything. It will run sequential for anything that there is a dual sync dizzy and some without. THe dual sync is a complete dizzy, not a conversion. It depends on crank and cam inputs so you can make a DIS system work. In hot rodders terms, it's the beez neez!!

Supreme EFI, no need to get bent, I was just saying that the MS and EEC were designed specifically single blade TB, Thruster was designed with Accel TB in mind but will support almost any TB on the market. Not saying a MS or EEC was better cause it's apples and oranges. Sorry, don't think I'm kissin' ass but I came to the Thruster cause of it's ability to use the stuff I already have and robust capabilities.

I have not bought anything from Summit with exception of my sensor kit. It's been on hold for a month. I still have quite a bit left to buy...so don't think I won't buy from you.

I have a problem with buying from someone that sells any goods made in China, and guess who is the largest supplier of chinese hot rod parts?
The parts are cheaper (and always will be) cause the people work for NOTHING!! Get onboard people, you are unemployed because of this!!!! OK, 2 cents, soapbox........over.

 

Thanks, there is so much bad info out there it's tough to set it straight sometimes. It's all good.

Yes it will do just about everything and yes there is a Billet Dual Sync for Buicks. How about that! Remember, Mallory and Accel are the same company and Mallory makes distributors for just about anything. When I did my Olds 6-7 years ago they had to make mine, it was the first Olds Dual Sync they had ever done. Now they make em for Jeeps, imports, all kinds of applications. I think they have about 30 different distributor part numbers.

It's great to see someone take just a little extra effort to put something together for something other than the mainstream stuff. And as far as tuning it it won't be any different than anything else. With the Thruster you can give it what it needs when it needs it.

Keep us posted. Again I'm here to help.

P.S. I can get pretty much any part you need for this project in a week or so.

 

For a quick update this is what I have so far....added some pics of the progress.

Added an Edelbrock Elbow to mount the Ford Throttle Body, I went this route since I have a butt load of Ford 5.0 parts left over from various projects. I will be using a 70mm TB for the N/A version that I plan on completing by years end 2011. It will be run on gasoline on a 15 year old 350 SBB I have already in my 72 Skylark. It's been flogged to the moon and back as a dedicated Drag Race engine for 3 years, 2 Hot Rod Power Tours and Permenate Change of Station move for the US Navy from San Diego to Pascagoula, MS and Mayport, FL and back. It's in dire need of a refresh, but still keeps on ticking.... so why not learn EFI on the old motor. Going in after tuning and timing curves have been figured is a 11:1 360 ci SBB with mega ported and polished heads, roller camed, Nitrous Fed, E85 powered LS beater with a SP TH400 and Gear vendors OD.

The car is a stock bodied Skylark weighing in at LUXO barge status 3800+lbs equipped with a 12 bolt rear with 3.73 gears and should be good enough for streetable low 11's with the new motor and E85.

Upon ironing out the bugs of the E85 and NO2, I will stick the bone stock 72 350 with 63K miles back into the car and pressurize the crap outta it via twin turbos or an ATI Procharger....have not decided, since it is so far down the road. Either way the thing is gonna be insane, as I'm leaning toward the twin turbos since I have a pair of Air to Air intercoolers off of two Thunderbird Super Coupes. This combo would allow for mega power while retaining granny easy driving status.

OK The Ford TB is used to allow for a single small TB that allows for easy plumbing adaptation plus I have a ton of this stuff laying around, the one I will end up using is a 70mm but I will soon have a 95mm TB I will be using for mock up, since thats all I have here in Australia.

I had the TA intake converted to EFI by Aaron at 6061.com......he's strictly an EFI conversion source. I have used a 1" open phenolic spacer under the elbow. The Accel Thruster EFI system will be used to control the 350, so I have ordered the sensor pack with the 3 bar map sensor. This is the correct sensor pack for a boosted application. As of now the engine will be N/A and will work fine with this application, but will also work with future upgrades.

I have noticed that a hole will need to be drilled and tapped to accept a 3/8" pipe thread into the LS throttle bracket mounting pad on the left of the elbow. This is for the sensor that I have located on the table. It is the ACT sensor or Air Charge Temperature Sensor, that reads ambient air temperature coming into the engine.

 

Looks like a periscope!

Ha good work!You seem to be doing some pretty insanse stuff but why E-85 I might have missed it somewhere so down the road you can boost the hell out of it?And because the corn syrup is cheaper?

 

Very cool! i plan to use a 90 degree elbow like that as well with my MPFI.

 

E85's octane level is much higher than regular pumpgas. Besides the higher octane level, the fuel burns cold. This allows for more compression, timing, cylinder pressure. Beware any car running E85 as they can run an insane amount of boost and timing. This makes the regular daily driven street car to become a wolf in sheeps clothing especially if they have a turbo. Having a car powered by E85 works similar to having aluminum cylinder heads. Your compression level can be a whole point higher than a regular pumpgas motor. I was going this route as a stepping stone before E85 and boost. You gotta get the fuel and timing maps sorted out or the addition of a blower or turbo will turn your motor into a 500 lb paperweight.

 

Will the elbow allow for stock hood clearance?

 

Just wanted to pass along what I think these forums should represent, quality info and real world help.

I jumped in to help this guy on a 416 Mopar 8 stack. He had nowhere to go as the MSD Blaster EFI is a thing of the past, as well as their support.

I really am here to help.

Mark

http://efi101.com/forum/viewtopic.php?p=38551#38551