98+ Bravada clone

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Sand Storm

New member
Hey guys. This is my first post on here and I plan on it to be the first of many. I should start by saying thanks for the great info. I've already collected from the search function. Looks like some of you guy's really know your stuff! I am a frequent on the DSM(Eclipse/Talon) forums and have accomplished alot with my Eclipse. Now I think its time to bring my turbocharging/tuning knowledge and fabrication abilities to another realm of the auto world. I originally planned to build a sand rail dunebuggy with the typhoon set-up I have sitting in my shop right now (hence my username) but have since decided against the idea mostly because of the cost of a transmission it would take to hold up to the hp I would be putting to it. Which leads me to my current situation. Here I sit with literally, everthing that makes a typhoon what it is minus the front differential and the rear end. All for $1200, which was a deal I couldn't pass up.

Now, since its time for a new daily driver again anyways and I need to start planning on baby-seats here w/in the next few years, the plan is to buy a 98+ Bravada w/in the near future. Or maybe a Blazer/Jimmy(opinions welcome). Then I would drop in the Typhoon motor and boost it up a little. That way I'll have the four doors and a more comfortable vehicle for the old lady, and a sleeper for me on the weekends :)

So there is my long introduction and my justification for why I dont just go buy "THE REAL THING" and save my self all the work. Besides, I like a challange! So here are my questions :
1. Has anyone actually completed a typhoon engine transplant into a 98+ Bravada using the stock Bravada drivetrain?
2. Would the Blazer/Jimmy w/ the NV-236 t-case be a better bet?
3. Is the NV-136 standard on the Bravada? The NV-236 in the B/J?
4. How tough is the stock 4L60E? The listed t-cases?
5. Would I be able to put down 400hp thru this stock drivetrain on the weekends?
6. Would if work fairly well to basically drop the typhoon engine/ecm/harness into the Bravada and then use the stock ECM to work with the typhoon's to control the t-case?
7. Is there any other signal from the engine besides the TPS and RPM that will have to be shared between both ECM's?
8. How about stock instrument panel hook-ups?
7. Can I retain A/C with this swap?
6. Is there any certain #'s or parts to look for when shopping for a Bravada?

Sorry for the long post but I've been seaching for the last 2 days on here now and I just want to clarify some questions I have had that I haven't found definate answers on yet. I WILL accomplish this project even if if it takes longer than I'm planning and I would hpoe to be able to help others with this same swap in the future.

Thanks,
Andy
 
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Will

New member
I wonder if it would be possible to keep the bravada engine in it and add a turbo system? It seems like it might be less work. Anyone out there done this?
 
D

DanGTO

New member
I imagine it would work, but the only issue is the engine management would not put up with it, and compression differences, and you don't want to run boost on an NA fuel system with higher compression! :eek:
 
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Crazy J

New member
Will said:
I wonder if it would be possible to keep the bravada engine in it and add a turbo system? It seems like it might be less work. Anyone out there done this?
Click to expand...
Bill Mach has a turbo system designed for '96+ 4.3's, he posts here but i don't remember his username. last i read he'd dynoed his wifes blazer at over 300whp.
 
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Sand Storm

New member
The stock NA ECM has no parameters for even a knock sensor let alone the other needs of a forced induction engine. Since I originally posted this, I continued to do ALOT of research and have found it will definately be a HUGE undertaking to make it all work on a 98'+. As for the time being I have regretfully decided to put this project off for a while due to mostly time constraints and the need for a every day driver. The day may still come but it will most likely be with a 95-97' if done. For now I'm planning on putting the Ty drivetrain in a 91-94' Bravada but haven't had the time to start that either.
 
S

Sand Storm

New member
Hmm, interesting... I wonder if he'll sell bits and pieces of the kit? The reason I say that is because I already have everything that makes a Typhoon what it is in my possesion so I would be able to use the manifolds and turbo and all (if I wanted too). The main problem would be the wiring harness and ECM compatability w/ the newer PCM sensors throughout the drivetrain. As well as the the stock 4L60E tranny holding up, but I'm pretty sure one of those could be built as tough as a 700R4 if desired. Or I could find the adapter plate needed to convert to a 700. This is all if the truck was a 98'+. I think this could be even more easily done on a earlier gen2 Bravada.

I will have to get a hold of this guy and see just what their doing with their ECM's. That A2A intercooler setup would probably be pretty nice too!

Andy
 
JSM

JSM

Active member
4l60e is a 700 with electronic shifting.

no adaptor needed.

I would not suggest using newer computer for engine. Not good idea use stock syty computer.
 
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