ECU question

[LQ1]

I have a 94 3.4L engine. I want to put in a 91-93 ECU so I can purchase the FFP chip. I know I will need the map sensor, but what else is involved in doing this? Also, I plan on a turbo for this car, would converting to map make tuning the turbo set up easier or harder? I have an FMU, probably will be set up to 12:1 for the stock(rebuilt and flowed) injectors, and I also plan on buying a mini-afc from zzperformance. Would the FFP chip also help out in having the turbo on there? I planned on using a CT26 kind of modeling after Brians set up, but i think I am going to buy bigger turbo in better shape. The cost of getting the CT26 balanced and rebuilt I think would cost about the same as getting a better turbo in alot better condition.


Thanks for the help!

[dohcfiend]

domestic performance makes a chip for the 94-95 dohc, it is in the links section. but u are going to have to shell out 300 bucks for it.

id rather pay 300 for a chip and save the aggravation of going to a different ecu setup. if i were u id try to make the 94 work b/c it uses sequential fuel injection and the 91-93 map system uses multi port injection. sequential is preferred in boost situations.

[SappySE107]

Their chip has no testing as far as I know. No dyno, no personal experience....not worth 300 without some kind of proof it does something.

If you doing a turbo, don't bother with any chip cause they are meant for NA. Keep your MAF setup, its easier to tune for boost. One of these days ill get a 94 DOHC to tune and offer a chip but as it stands I dont, and I don't know what gains are to be had from even doing so. GM did get 10 hp out of their MAF engines...no motor changes.

[LQ1]

I never planned on spending $300 on a chip from a place with out numbers to back it up. Thanks for the help, ill stick with what i got then for the turbo.

[dykz34]

Just drive down to Indiana and have him tune your car.

[LQ1]

Just drive down to Indiana and have him tune your car.

Ill do it if i can store it there for the winter....

[dykz34]

Sure, why not. Ben has a bajillion parts anyways.

[LQ1]

Sure, why not. Ben has a bajillion parts anyways.

You can follow me down in your lumy if he needs another parts car

[SappySE107]

Hahaha, yeah, the last thing I can do is store a car here all winter. Im trying to get this other car done and out of here:P

[timg]

Re: ECU question

I have a 94 3.4L engine. I want to put in a 91-93 ECU so I can purchase the FFP chip. I know I will need the map sensor, but what else is involved in doing this? Also, I plan on a turbo for this car, would converting to map make tuning the turbo set up easier or harder? I have an FMU, probably will be set up to 12:1 for the stock(rebuilt and flowed) injectors, and I also plan on buying a mini-afc from zzperformance. Would the FFP chip also help out in having the turbo on there? I planned on using a CT26 kind of modeling after Brians set up, but i think I am going to buy bigger turbo in better shape. The cost of getting the CT26 balanced and rebuilt I think would cost about the same as getting a better turbo in alot better condition.


Thanks for the help!

First, if you use your stock computer, put the MAF downstream of the BOV.
If you're planning on buying the mini-AFC, don't buy the FMU. ZZP has used the mini-AFC successfully with larger injectors on the L36. I don't think the LQ1 would be much different. I plan on doing this soon - removing the FMU and adding larger injectors while tuning with the mini-AFC. This should save you a lot of hassle and really reduce drivability problems to a minimum.

Good luck!


Tim

[LQ1]

Re: ECU question

I have a 94 3.4L engine. I want to put in a 91-93 ECU so I can purchase the FFP chip. I know I will need the map sensor, but what else is involved in doing this? Also, I plan on a turbo for this car, would converting to map make tuning the turbo set up easier or harder? I have an FMU, probably will be set up to 12:1 for the stock(rebuilt and flowed) injectors, and I also plan on buying a mini-afc from zzperformance. Would the FFP chip also help out in having the turbo on there? I planned on using a CT26 kind of modeling after Brians set up, but i think I am going to buy bigger turbo in better shape. The cost of getting the CT26 balanced and rebuilt I think would cost about the same as getting a better turbo in alot better condition.


Thanks for the help!

First, if you use your stock computer, put the MAF downstream of the BOV.
If you're planning on buying the mini-AFC, don't buy the FMU. ZZP has used the mini-AFC successfully with larger injectors on the L36. I don't think the LQ1 would be much different. I plan on doing this soon - removing the FMU and adding larger injectors while tuning with the mini-AFC. This should save you a lot of hassle and really reduce drivability problems to a minimum.

Good luck!


Tim

I have been doing some research over the summer, and I plan on making a few changes in how I am going to set this all up. Im dumping the CT26, and going to start looking for a better turbo. I got the FMU really really cheap, which is why I choose that over the injectors, but I imagine getting bigger injectors will be a bit easier to do. When i started this, I wanted to go the cheap route, but now that I have found a place to store this money pit for the winter(not at bens house ), I can start saving money to get some quality parts. My biggest thing right now is finding a place/someone to weld all the piping for me, and of course reading more and more.

I am running an auto tranny for this project, what suggestions do you have to keep it from exploding? I would like to get a stall and 3.73 gears, but I am unsure of how much I can do to make this tranny stronger.

[Gemmer]

http://www.intense-racing.com/

They will do 4T60-E's for less than a 4T65-E and itll be HELLA strong and I believe whatever gears you want