*PHASTEK* Perrin Tuned Vortech Supercharger Install Thread (3 Vehicles, 3 Kits)

[F1point4]

Here we go

This the performance of our cars after reinstalling the upgraded blower. All Map 3

Here are some notable differences between the cars
Pete and I have the borla header
Chris has no header but catless and unresonated headerback
Pete has stock wheels but Michelin PSS tyres
I have 245 V1 Star Specs on Weds
Chris has some Bridgestone tyres on 8" wheels
I was the only one running 5W30 in this run.


20130419-HoustonVortechUpgradePerformance by VictorN07, on Flickr





To show the difference between the old blower and new blower in my car
Just more power everywhere. Old run had 0W20, new run has 5W30 if that matters.

20130419-VictorVortechUpgradeComparison-001 by VictorN07, on Flickr

[sw20kosh]

That's an increase of 30 ft lbs peak!!! Yum. This is great! Very consistent results!

There is one notable issue: the HP increase should be bigger than torque. From what I can see there is something pulling it back in the upper revs which is preventing it from making that HP.

The difference in peak HP is not as big (20 whp) due to something going on in the upper rpms. This may be necessary as this compressor is running higher boost. On a high compression motor I am betting the tune up top has to be more conservative.

Who ever did the tune for these cars can you comment on whether or not a fair bit of timing has to be pulled in the upper rpms or is the torque decrease due to something else entirely?

[djdnz]

Wow the compressor upgrade sure improved results a lot!

I'm intrigued that there isn't any perceivable difference on the chart between aftermarket header and stock. I would have expected a bit more out of the two with headers. On the other hand the consistency of the three cars dyno plots is nice to see.

Thanks for the update F1point4

[Gary in NJ]

Originally Posted by sw20kosh

There is one notable issue: the HP increase should be bigger than torque. From what I can see there is something pulling it back in the upper revs which is preventing it from making that HP.

There is a torque fall-off. This is typical of a SC due to parasitic and pumping losses. With a fixed formula (hp=torque*rpm/5252) there is no other explanation. Since all plots cross at 5252 rpm they are correct.

[Pete]

Originally Posted by djdnz

...I'm intrigued that there isn't any perceivable difference on the chart between aftermarket header and stock.

The headers removed the torque dip entirely, Chris had already fixed that problem by going with an uncatted and unresonated exhaust. I think to get solid gains up top with headers you should go with a long tube equal length setup. The UEL Borlas the F1point4 and I both have are great for eliminating the torque dip and creating a sexy exhaust note, but not for gains up top.

Originally Posted by sw20kosh

...The difference in peak HP is not as big (20 whp) due to something going on in the upper rpms. This may be necessary as this compressor is running higher boost. On a high compression motor I am betting the tune up top has to be more conservative..

We are using a 92 octane tune, I bet that has something to do with it. It would be great if the torque just kept rising to the 8k rpm red line, but I wouldn't expect that on any car that isn't running E85.

The new blower is great, I really don't want to add any more power to this car. On the conservative map 1 with the new blower I made 238 WHP, and that is the setting I drive on 99% of the time. That feels to me like it has plenty of power, this is now the fastest car I have ever owned. (the GTR owners are laughing at me right now)

[F1point4]

Originally Posted by RedAlert

Thanks for sharing this. I cant wait to get mine on the dyno, I have the UEL also. Are you seeing 10psi? I was just using the ScanTool OBDLink MX with Torque Pro and it was reporting 10psi.

Mind sharing what settings/sensors you used to show boost? I haven't been able to make anything say 10 psi. Thanks mate

[PhastekSport]

Kind of new to the app and just borrowed f1point4s adaptor.

Boost should show the same as this minus 14.7, no?

Sent from my SCH-I605 using Tapatalk 2

[Sportsguy83]

Originally Posted by Chris@Phastek

Boost should show the same as this minus 14.7, no?

Sent from my SCH-I605 using Tapatalk 2

Originally Posted by RedAlert

Today is my first day using the app also.

If I understood the question correctly, you have to convert it. If we were talking about it showing absolute pressure (And in psi) then yes, you subtract 14.7 psi and that's it. This also works for Bar untis, if its absolute you subtract one Bar.

Go here: http://www.engineeringtoolbox.com/pr...ter-d_569.html

21 in/Hg are roughly 10.3 psi.

[sw20kosh]

Originally Posted by Gary in NJ

There is a torque fall-off. This is typical of a SC due to parasitic and pumping losses. With a fixed formula (hp=torque*rpm/5252) there is no other explanation. Since all plots cross at 5252 rpm they are correct.

There is parasitic loss yes. But it doesn't translate to dramatic torque fall off. A centrifugal blower produces boost that keeps increasing till redline. Most centri set ups show increasing torque or a plateau'ing of torque at higher RPMs because boost is still rising up there.

Skatery's Vortech centrifugal


The fall off in torque in this case is due to timing being pulled up top to prevent det.

[F1point4]

Here is all of our map 1 dynos. There is a significant difference between Map 1 and 3 in the Perrin rev7 tune...



20130419-HoustonVortechUpgradePerformanceMap1 by VictorN07, on Flickr

[Pete]

Originally Posted by RedAlert

Thanks for sharing this. I cant wait to get mine on the dyno, I have the UEL also. Are you seeing 10psi? I was just using the ScanTool OBDLink MX with Torque Pro and it was reporting 10psi.

I'll check tomorrow, thanks.

Originally Posted by RedAlert

The sensor is vacuum. It was on by default. In the attached picture you can see the max of just a notch above 10psi. The red tick mark shows maxed psi obtained.

[ft_sjo]

Originally Posted by Sportsguy83

If I understood the question correctly, you have to convert it. If we were talking about it showing absolute pressure (And in psi) then yes, you subtract 14.7 psi and that's it. This also works for Bar untis, if its absolute you subtract one Bar.

Go here: http://www.engineeringtoolbox.com/pr...ter-d_569.html

21 in/Hg are roughly 10.3 psi.

When calculating relative from absolute you have to take into account one atmosphere is 14.7 psi, whereas the subsequent positive pressure is 14.5 psi per 100 kpa.

[Adeets]

Originally Posted by sw20kosh

stuff

Skatery's Vortech centrifugal


Stuff

CORN JUICE!
(I need a flex fuel system.)

[F1point4]

Was working on the car today, but not related to more power. Here are some more pics of a naked car for those who want to look at the kit


20130421-MorimotoRetroquik_XBALEDAngelEyes-014 by VictorN07, on Flickr


20130421-MorimotoRetroquik_XBALEDAngelEyes-023 by VictorN07, on Flickr


20130421-MorimotoRetroquik_XBALEDAngelEyes-031 by VictorN07, on Flickr