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Discussion Starter · #1 ·
**Disclaimer - I'm not a tuner. I've mucked with megasquirts and gotten cars running but not enough to squeeze hp out of a car.

Story: I have the MS43 tuner pro software and use it to remove sap and delete EWS and stuff. A friend with a 325 got a shark tune but it requires you to virginize before you can do their tune. So I pushed his virgin file, did the shark tune, then redid the sap delete/etc.

What I found: Just for giggles, I did a diff between his stock virgin tune and the shark tune. I've looked at the old 330 shark tune I have (prior to turner acquiring them) and it modified a TON of settings that I didn't understand. This new turner version of the shark tune is minimal at best. I see no vanos tweaks and no fuel map tweaks. I do see a fuel multiplier (ip_ti_fl_n) and maybe a fuel on throttle map change (ip_ti_pvs_pvs_n).

Along with the normal limiter removals and raised redline, I see a TPS remapping (different than the old shark tune). I also see lowering of various knock sensor details. Mostly normal stuff.

The reason I'm making this post is the spark map. I've attached the diff between the virgin and shark ignition map. It's literally just an advance of 3.8 across the board. Idle, low load, all of it. Cold start ignition map is the same too. Again, I'm not a tuner, but a blanket 3.8 advance does not sound right to me. I'll delete the thread and eat my words if someone smarter than me can chime in here.
 

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Discussion Starter · #8 ·
So ECS/Turner bought the Shark Injector brand/product without the tuning files, then uploaded their own trash and sold it as a Conforti tune? What happened to the real tunes?

FWIW I bought a Shark Injector last year for my 2005 ZHP and love the improved throttle response, but did not notice any change in power.
The throttle response tables look ok. But you bought a chip for more than that. they make throttle mods. It's not super aggressive like the old shark tune, but it's fine.

If anything, I could see a loss in power or no change at all. No vanos changes, no real fuel map changes other than a multiplier.

It's likely over fueling and down low it might gain some hp where things over lap? I'm not sure.
 

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Discussion Starter · #10 ·
I haven't looked into MS54 stuff. I'd have to basically physically have you here to read the stock map, then reflash the shark map, and then look at the difference. I do have a bench setup. But then you'd have to send me your DME and the shark tuner dongle.
 
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