Send the ecm to anyone who can reflash gm ecms To get the vats removed

 

If you have HP Tuners or something similar it's a simple uncheck of a couple boxes. Literally takes 2 seconds to do after you have downloaded the PCM flash.

On a side note I should have mine back from the tuner/dyno tomorrow. Giggidy. Too bad it's cold as hell.

 

Well i have no idea what the original poster had j assumed he had a factory ecm with out Hp tuners.

Min goes a week from tomarrow

 

Thanks guys. So I found a guy who will delete VATS. Has anyone ever figured out how to use a stock tach yet? I have a g35, so I can't put a speedhut tach as cleanly into my cluster as you 350z guys as there aren't individual holes for each gauge in the cluster, I would have to cut a hole in it for it to be able to fit, which I might do if there's no other option.

 

So I currently have a 3.3FD because I traded my 3.5 with someone who had an auto Z, as its more ideal for my twin turbo setup. I imagine 3.3 would not be ideal for a T56....I calculated and my theoretical topspeed is like 260mph and 60mph and 6th gear is like 1200rpm :/ Thoughts? Might not be too bad.. I guess I will find out.

 

You can use the stock Tach but it will cost you!

 

Cost me in what way, can you please explain? I don't want to go aftermarket ecu if that's what you mean.

 

Hello all. I'm a new member but have been following and reading many different discussions on these LS 350Z projects for a while now. I've seen many LS projects and builds but most have been with a LS1 or LS2. I'm looking into making a build of my own, but wanted to know the upsides and downside of using the slightly larger 6.2L LS3 instead. I've seen it on a couple cars with the SIKKY kits, but not nearly as many as the LS1's and LS2's. What's everyone's opinions of a LS3 350Z build? In advance, I realize this build will most-likely run me 20-30k.

 

Cash the only person i know that has it is cass007 i tried to do it as well but when it came Down to it the signals are in the can bus system and the only what to get it right is to buy a 2k part to make it work ... It wasn't worth it imo

 

Oh I see. Thanks for the info.

Edit: Nevermind about AC pulley delete, the compressor is driven by its own belt.

 

I still have a set of Sikky headers for sale. $550 or best offer! Brand new, only used for mock up.

 

It really depends on which t56 gear set you get. With most your 'top speed' gear will normally be 5th for most T56. If top speed is what you're going for the T56 from the LS1 SS camaros may be what you're looking for. The other option is to also just get one built by D&D transmission or RS Gear. You'll pay extra but it will be bullet proof and you can select your gear ratio to some degree. I basically did that but with a T56 magnum ( I don't recommend the Magnum route )

 

Was planning on a t56 from an 05-06 gto

 

Here's your basic info on the M12, as it's known.
http://ultimategto.com/cgi-bin/showc...005/05_00084_2

The main issue you'll run into is a somewhat short 5th gear depending on your final drive ratio/tire combo/redline and 6th is simply a cruising gear only. The first 3 gears are fairly short and stacked decently but the 3-4 shift has a pretty healthy gap. the 4-5 is fine but don't count on pulling 6th gear from a redline 5th gear shift.

The magnum road race gear set has a much longer 1st gear (~10%) and then stacks everything tighter throughout the rest of the gears. Even with my 2.66 first gear (vs 2.97) and the 3.5 final drive my first two gears require a light throttle and that's before a solid tune.

 

what size?

 

1 7/8 with 3.5in collector

 

Thank you for the gearing info. I guess I will just see how the 3.3 is and go from there, sounds like it may be fine. I have yet another question, this time regarding the gas pedal. Planning on the DBW ls2 from a 05-06 gto and from what I have read I need to cut and weld my Nissan pedal to allow fitment of the potentiometer from the ls2 pedal. Is there a picture of what exactly I need to do? A bit confused.

 

Or just run a ls1 throttle body but then there's the intake difference issue ...

 

Looks identical to the kit i have of marks.

im curious to where you are going to try an run the down pipe i had to make a custom motor mount for my huge 4 inch DP.



As to the stock G35 Tach working with the GM ECU will not work with out alot of $$$$$ and time and modifying the stock cluster with new hardware. Cass was able to make it work due to the Vipec standaolne ECU using CAN out signals that were the same as the Stock cluster. Just go with a stack or something like it or make your own with multiple autometer gauges its up to you.

 

I did it was like finding a needle in a haystack.