Vishnu Single Turbo at PBIR - 12.50@121.6 having to shift all gears at 6300rpm

[nafoo]

Damn, I would be $#@!ing pissed if I were in your shoes. Seems like you have to keep buying $#@! on top of the kit to get anywhere near Shiv's advertised times.

Disappointing times aside, does it atleast feel faster on highway pulls when you're in the powerband? I think your gearing and turbo is more suited to 60-130s. Have you had a chance to do 60-130s?

I hope you get all this sorted out :/

[654]

You got your shifting dialed in well for your stock turbo setup. Getting it working for ST as well will result a lot quicker times.

[aleena212]

hi,
Thanks for shearing nice information.

[Sticky]

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hi,
Thanks for shearing nice information.

Hmmm...

[bmw335iguy]

Sorry your still having issues but thanks for sharing your results! Is there any reason you haven't been posting your times at the track over on e90? Does shiv not want potential customers to know that they shouldn't expect to match his 10 second time?

[LostMarine]

lets see some slips please, include date and time on the slip

[GeorgiaTech335Coupe]

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Damn, I would be $#@!ing pissed if I were in your shoes. Seems like you have to keep buying $#@! on top of the kit to get anywhere near Shiv's advertised times.

Disappointing times aside, does it atleast feel faster on highway pulls when you're in the powerband? I think your gearing and turbo is more suited to 60-130s. Have you had a chance to do 60-130s?

I hope you get all this sorted out :/

The car 100% feels faster than with the stock turbos....except under 4000rpm.

There is no question that it is faster, just not what I think it should be. My best trap on stock turbos 93+meth was around 117.xx, race+meth 118.9, e85/93+meth 118.

as far as 60-130, at 60 mph I'm right under 3800rpm. I need to be higher than that.

[GeorgiaTech335Coupe]

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Sorry your still having issues but thanks for sharing your results! Is there any reason you haven't been posting your times at the track over on e90? Does shiv not want potential customers to know that they shouldn't expect to match his 10 second time?

No just haven't because I'm lazy/busy with other stuff.

[zeel]

Thanks for the update Gtech. I am glad one of the Vishnu ST's is actually running their setup and sharing results. I still want to see how the auto ST's are doing.

[GeorgiaTech335Coupe]

[GeorgiaTech335Coupe]

The numbers written in ink are the VBOX ET and MPH.

[rudypoochris]

You went down to 10:1 on the top end? Is it me or is that ridiculously rich?

[Terry@BMS]

Given the power curve of the single I think 3.46 gears are a must have for manual transmission cars. That change alone should net you 2-3mph.

[GeorgiaTech335Coupe]

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Given the power curve of the single I think 3.46 gears are a must have for manual transmission cars. That change alone should net you 2-3mph.

exactly what I'm thinking.

[GeorgiaTech335Coupe]

Had no timing in 4th on this one. Think I shifted too quickly.

Also, notice there is a little bit of bog on 3-4 in both graphs. I could feel this at the track.

I'm not using NLS on any of these runs (did it on my first run, but timing flatlined so I took it off - still seemed to happen on the above run).

[Sticky]

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Had no timing in 4th on this one. Think I shifted too quickly.

Also, notice there is a little bit of bog on 3-4 in both graphs. I could feel this at the track.

I'm not using NLS on any of these runs (did it on my first run, but timing flatlined so I took it off - still seemed to happen on the above run).

Nice to get more slips, thanks. ~124 traps, interesting.

[GeorgiaTech335Coupe]

Look at the difference in VBOX ET and slip ET on that 2nd slip. 0.5s. Very big.

[Sticky]

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Look at the difference in VBOX ET and slip ET on that 2nd slip. 0.5s. Very big.

Hopefully people realize Vbox times are not track times. Hotrod used to do that nonsense and it was hilarious to watch him claim records based on inflated Vbox BS.

[GeorgiaTech335Coupe]

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Hopefully people realize Vbox times are not track times. Hotrod used to do that nonsense and it was hilarious to watch him claim records based on inflated Vbox BS.

At my track here in Orlando, my VBOX would always be dead on with my slip. Not at PBIR though. I'm not sure if my VBOX is out of calibration or if the track is. Unfortunately, I forgot to ask my friend to check his VBOX against his slips so I dont' have a 2nd point of reference.

I'll probably go to Bradenton's track soon. I'll check my VBOX against the slips there and see if my VBOX is messed up or if PBIR is.

[Sticky]

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At my track here in Orlando, my VBOX would always be dead on with my slip. Not at PBIR though. I'm not sure if my VBOX is out of calibration or if the track is. Unfortunately, I forgot to ask my friend to check his VBOX against his slips so I dont' have a 2nd point of reference.

I'll probably go to Bradenton's track soon. I'll check my VBOX against the slips there and see if my VBOX is messed up or if PBIR is.

It will likely vary based on location, elevation, conditions. The point ultimately being a Vbox isn't equal to a slip.

[bmw335iguy]

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No just haven't because I'm lazy/busy with other stuff.

Fair enough, I could just imagine the $#@! storm it would stir up if you did though. Keep us posted, thanks!

[654]

Isn't your 60ft >0.5s worse than Shiv's? Wouldn't that alone get you into high 10s?

[whoosh]

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The point ultimately being a Vbox isn't equal to a slip.

Exactly... IHRA sanctioned track equipment is going to be more trustworthy than a box in the car.

[bigdnno98]

Pretty close, but what's disturbing is his 1/8mi ET. It's not good. I would think even after the bad 60' he should pick up more time on the front end.

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Isn't your 60ft >0.5s worse than Shiv's? Wouldn't that alone get you into high 10s?

[LostMarine]

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as far as 60-130, at 60 mph I'm right under 3800rpm. I need to be higher than that.

sorry, not following the statement, you know you can change gears right..?