[Zranger28]

im looking to tune my truck in the very near future.

now im not looking for any fancy tune work cause im doing it myself, but i just need to get a tune in the truck so it will run safely with the turbo.

should i go with the QH

or should i get a f3 chip and the jaybird?

I know the f3 is a one time use IIRC but the jaybird can be used over and over again correct?

also i will need BE for both correct?

Thanks in advance.

the quicker the answer the better cause i will be ordering the stuff tomorrow.

[NotchAbove]

I don't think the JB allows you to datalog, and that is important in order to correct the tune as you go.

The QH also allows on the fly changes, verse having to re-burn a new chip each time. I'd say QH without a doubt.

[cgrey8]

Also what engine do you have in the truck now? And what mods are on it? That would give us an idea as to how difficult the tuning job is likely to be.

[Zranger28]

it is a 94 ranger with the 4.0l OHV

its got the 80mm mustang maf w/ 24# injectors and the 24# sensor.

its going to be running 2-5 psi of boost

[cgrey8]

Before you buy anything QH or chip, make sure your EEC strategy is supported. Contact Adam (username POPSRACING). He charges for his def files, so be sure to budget for that as well. If his price is too rich for your blood, then another option is to convert your truck to a GUFB or CBAZA controlled engine although the cost of converting may be about the same amount as whatever he's asking for. I'll let you make that decision...I just thought I'd throw out the possibility. I'm not recommending one way or another...again just letting you know what your options are.

A far bigger concern I'd have is the transmission behind the 4.0L. If it is 100% stock, it isn't likely to stand up to too much abuse. The Ranger transmissions (auto or manual) are not known for being durable with a stock engine. Put some real power through them, and they don't hold up long at all. While you could build the transmission to handle big output, a far better recommendation, particularly for your year Ranger is to do a V8 conversion and get onto a more standard performance platform with LOTS of performance support for whatever you want to do.

[Zranger28]

thanks i will look.

i will also contact him

thank you

[cgrey8]

Being the EEC is that old, you might also contact Derek (username sailorbob). He's the one that helped me with the GUFB def files. The 94 Ranger is "near" that same era of EEC and is probably a close cousin to either the GUFB or CBAZA EEC so he may have a def file for you as well. Can't hurt to ask...

[Zranger28]

with the QH in the add it states it lets you harvest the stock definition file to use as a start for a tune.

does this mean it reads my stock tune and i can bump things up from there, so i dont have to start from totally scratch?

im thinking im gonna get the QH cause of the possibility of being able to tweak my tune as i get better at tuning.

[cgrey8]

That means you can upload the stock tune from your EEC and use that as a starting point. However the tune and the def file are different. The tune is the machine code the EEC's processor executes. It doesn't contain any human readable information in it at all. It can be read, but only by those heavily familiar with how to disassemble the tune into assembly and then read the code to make heads or tails of it.

A def file is a template that somebody writes in Excel once they've gone through the brain damage of disassembly and identified the various pieces in the tune. The def file lets them put human readable names and descriptions to the innocuous data in the tune as well as presents the data in meaningful units that a human tuner can understand. There's a learning curve for learning how to tune. There's an even bigger learning curve for learning how to disassemble that most DIY tuners don't ever delve into nor care to. But for those that do, they make def files and expect to get paid for their time and skill.

Ford has hundreds of different BIN strategies (tune layouts). Each layout requires its own def file to make the tune readable. You cannot open a tune of one strategy with a def file meant for tunes of a completely different strategy. What you see for data will be jibberish.

So bottom line, the QH is the way to go IF your strategy has a def file to support it. If there isn't a def file available for your strategy, you'll likely want to consider swapping to an EEC that is more supported. When you contact Adam or Derek, they'll need your EEC's catch-code. The catch-code is the 3-5 character code written in fairly large font on your EEC's label.