Rev limiter

[darksunshade]

I was wondering if anyone know if our bikes come with a stock rev limiter?

I'm very curious about it because never had a bike that had it and does it cause harm if your rev limiter has to step in?

Suzuki says its the same engine as the gsx k5 but diffrent head components. but that engine revs to 14k does that mean ours can rev that high too?

[AshesOfAnother]

Differently designed head for lower end torque. It does have a limited, but try to avoid it.

[sirnarcsalot]

The rev limiter is set at... i believe 11,250. It is possible that the engine is built to 2004 GSX R designs but with lower quality alloys etc. Certainly the valves, springs and cams are different. Is the crankshaft, pistons, connecting rods and bearing alloy or designs different? Not sure. Lower performance cam, smaller ports, lower compression = lower performance.

Taking it to the rev limiter should be fine. Holding it there endlessly would trash your engine, but who is going to do that?

Presently i am looking at reflashing my ECU and potentially plan to lift the rev limiter to 12,000.

Performance and reliability are oposing forces. Choose which is more important. For me i have no plan to ride my GSX-S750Z 100,000 miles so I am willing to give it mild performance boosts.

[mrstamp80]

Quick video of where the rev limiter hits. 

[mrstamp80]

Also I have talked with on of the local performance motorcycle shops here locally, they build a lot of turbo busa's and drag bikes. I was talking with him bout my bike (our) he said he could reflash the ecu and give it 6-8 h.p. and would change the rev limiter to around 12,500. He also said that the rear throttle plates at w.o.t. only open 85% at stock set up, and do not open at all til 5,000 rpm. He said it would cost $100 to do it, and i would also notice a huge amount of low end power. The only reason I have not done it, I don't wanna change the reliability of the machine. All this info he gave me was off some site that he gets the tunning map from. I can't remember who the supplier was.

Here is a link to their shop if anyone is interested. www.leesperformance.com/

[hansum-mane]

Hah, never realized the speedo has lag. 2nd gear pull feels like a rocket ship to my never been fast ass. I'm with ya on not changing the reliability of the bike though, at least for now.