BEE R Rev Limiter for 370Z?

AstatenateZ

Not for my car. For a TT drift car a friend of mine has.

I checked the BEE R website and it's showing up to VQ30 but no VQ35 or VQ37. I know the engines arent the same. Obviously. But would install on a VQ37 be the same as the VQ30? Or would it be different. I figure same wiring diagram if I installed using the VQ30 or just the Nissan wiring guide it would all be the same. Since it's the same car company. They should use the same color wiring on all nissans correct? Does anyone know for sure or have one installed for reference? Will be using car for drifting in the summer and would much rather have an ignition cut rev limiter as appose to the UpRev fuel cut rev limiter. It is an automatic. So it won't be for 2 stepping or launching. It'll only be to protect the car at high rpms instead of leaning out top end when bouncing off the rev limiter / fuel cut. It'd be bouncing off the rev limiter and having an ignition cut. It already has a rev limit / fuel cut set at 7,600-7,700 rpm via UpRev tune and he wants the ignition cut at 7,500 rpm via the BEE R rev limiter. So it'll cut ignition about 200-300rpms before it cuts fuel. Keeping the car on the rich side at high rpms instead of lean. Any opinions or wiring info?

SouthArk370Z

Going by your description, the unit was designed for an old-school engine without computer control.

Can't you adjust the fuel map to go rich above 7500?

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AstatenateZ

Some guys on the 350 forum have installed the VQ30 one on their cars and it works using the same install guides. I just don't know how different the ecu on the 350 vs the 370 is. Would JUST tuning it rich from say like 7300 up until 7700 make it backfire? It would still have a fuel cut at 7700. But from 7300 to 7700 running it rich would cause after Fire / back firing wouldnt it? Or would tuning it rich from 7300-7700 and have fuel cut rev limit at 7700 keep it from going lean at high rpms and pop flames?

AstatenateZ

He just doesn't want the engine to lean out in the top end. So he doesn't want a fuel cut. He wants an ignition cut. He's not like me he doesn't care about popping flames. He just doesn't want a lean mixture up top like a fuel cut would cause. So slowing down/ retarding the ignition timing and tuning it rich 7,300 rpm till 7,700 rpm where the car cuts fuel at would cause it to run a richer mixture at high rpms right?

SouthArk370Z

It doesn't appear that the BEE R is a popular mod for the 370Z ... at least on this site.

The FSM has all the wiring diagrams and pinouts you need, if you want to go that route.

If you don't know what you're doing, don't mess with the tuning. Get it done by someone that knows what they are doing. Your engine will thank you.

__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

AstatenateZ

He said he isn't comfortable installing the BEE R even with the FSM as reference for the pin and wiring diagram help. He would rather just have the car retuned in Dallas where it was originally tuned. He just didn't know if UpRev allowed for ignition timing. I told him it was. You can have ignition advanced or retarded correct? So couldn't he just have his tuner. Retard/slow the ignition timing at higher revs say from the 7,400 rpm and up and run rich from 7,300-7,700 rpms. That would be a richer mixture in the upper rpm curve ONLY correct?

Cause that would mean more fuel from 7,300-7,700 rpm AND ignition slowed from 7,300/7,400rpm-7,700 and then fuel cut being at 7,700. Wouldn't that be the correct way to cause a rich mixture in the upper rpm range via UpRev instead of using a piggyback ECU. Or having to worry about all that.

SouthArk370Z

Excellent idea.

I'm in the same boat as you - I don't fully understand how to tune a modern, computer-controlled engine. What you outline makes sense but I'd take it to a real tuner instead of trying to DIY.

__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

AstatenateZ

Yeah he is. He's going to take it to get tuned in Dallas where it was originally tuned. And he's going to have the ignition delayed/slowed/retarded. Whatever you want to call it. And have it run rich from 6,500- until his rev limit (fuel cut) which is at 7,500 or 7,700 I can't remember off hand. And that'll cause a rich mixture.