Turbonetics 7875 Dyno Results

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11-17-2013, 01:49 PM

#21

1999Black_Z28

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Quote:

Originally Posted by LT1RAY

Thanks Dave! I'm curious as well, Jon trapped 126 with a slipping trans on 11lbs.

Pretty sure Jon's was a billet 7575 or something but even so it's hard to compare trap speeds of a slipping auto and T56

Quote:

Originally Posted by totalchaos

read your build thread and 1999BLACK Z28 build thread. was hoping both you posted results. wanted to see some numbers between a tc78 and 7875.

Trap speed is a better comparison than different dyno's so it looks like you will have to wait until next spring when Ray gets to the track

However, I've been trying to research this myself and I am starting to think there may not be much difference at 10-12 psi. Over that and I expect the 7875 to really shine in comparison.

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11-17-2013, 02:05 PM

#22

Superman09

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Quote:

Originally Posted by 1999Black_Z28

Pretty sure Jon's was a billet 7575 or something but even so it's hard to compare trap speeds of a slipping auto and T56

Trap speed is a better comparison than different dyno's so it looks like you will have to wait until next spring when Ray gets to the track

However, I've been trying to research this myself and I am starting to think there may not be much difference at 10-12 psi. Over that and I expect the 7875 to really shine in comparison.

Yea, we will have another car out next year to showcase our T4 kit and we will make sure the trans is nice and crisp. Will use one of these turbos as well around this same boost range to begin. These things definitely do rock! As do Huron Speed Turbo Kits!

Jon

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11-17-2013, 02:26 PM

#23

totalchaos

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To me it seems like a 7875 would carry the power a little farther than the tc78, higher in the rpm. Especially in the higher boost levels.

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11-17-2013, 03:10 PM

#24

LT1RAY

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There's a few tests between the TC76 and the PT7675. The PT was worth about 50 rwhp at the same boost level. The new t4 kit looks very nice and should solve the boost creep issue with the new wastegate placement.

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11-17-2013, 04:21 PM

#25

Superman09

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Quote:

Originally Posted by totalchaos

To me it seems like a 7875 would carry the power a little farther than the tc78, higher in the rpm. Especially in the higher boost levels.

Absolutely, the 75mm turbine wheel will yield lower drive pressure which in turn will help carry the power higher into the RPM range.

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11-18-2013, 08:59 AM

#26

95bowtie

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Quote:

Originally Posted by 1999Black_Z28

Pretty sure Jon's was a billet 7575 or something but even so it's hard to compare trap speeds of a slipping auto and T56

Trap speed is a better comparison than different dyno's so it looks like you will have to wait until next spring when Ray gets to the track

However, I've been trying to research this myself and I am starting to think there may not be much difference at 10-12 psi. Over that and I expect the 7875 to really shine in comparison.

I ended up traping 130mph on 12# of boost and a street tire. Tnetics 7875, th400

Car weighs around 3800#

I'd say it was making some decent power.

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11-18-2013, 11:06 AM

#27

pyro719

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Awesome #'s Ray!

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11-18-2013, 08:51 PM

#28

LT1RAY

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Quote:

Originally Posted by pyro719

Awesome #'s Ray!

Thanks Nick! Very happy with the car, I've been driving it everyday.

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11-23-2013, 07:25 PM

#29

Friday13th

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Ray, what size injectors are you running?

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11-23-2013, 09:42 PM

#30

merim123

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also, what's it like driving on the street with no front sway bar?

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11-23-2013, 10:26 PM

#31

LT1RAY

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Quote:

Originally Posted by Friday13th

Ray, what size injectors are you running?

60lb's at 3 bar.

Quote:

Originally Posted by merim123

also, what's it like driving on the street with no front sway bar?

I can't even tell its gone honestly. I've drive the car allot and it feels great.

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11-25-2013, 01:33 AM

#32

slick99

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Are the heads ported? Killer #'s btw.

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11-27-2013, 01:26 AM

#33

HUGGER ORANGE SS

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Ray. didnt know if you wanted this video up of the Car in action. but here you go.
She's awesome !

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11-27-2013, 01:12 PM

#34

dementia

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I'm jealous. Sick looking/sounding setup. Clint's the man with his tunes. He'll be tuning my car again once I get it back in to go SD. Hope to see your car in person in some of next years cruises or if I ever make it to the track myself.