What HP and ET's ????

MY 85 GT

10 Year Member

Mar 7, 2008

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Mar 5, 2011

#1

• Mar 5, 2011

• #1

Ok just finished my Powerdyne BD11a supercharger install on my 87 GT convertible AOD...the blower was modified/rebuilt by 928 motorsports with the better kevlar belt,billet impeller,better bearings...Ok here the mods...87 GT speed density,Im seeing 8 psi on the gauge too.....19 lb injectors,FMU calibrated 12:1,aeromotive afpr,190 lph fuel pump,70mm TB,Bosch bi-pass,anderson Powerpipe 7x4inch K&N air filter,Mac shorty headers,Mac off road H-pipe,Flowmaster cat back,MSD coil,wires,cap,rotor,Autolite plugs #24's gapped at .032, AOD with a mild stall speed convertor,shiftkit and transcooler,I think it has 3.55's maybe 3.27's... The car before THE blower ran 14.4@96 mph and that was really the 1st time at the track and really didnt fine tune it..So what kind of HP do you think i have now and what do you think my ET's will be?

 

B

Boss 351

Here sthhhhhhhheeeve take a picthh of my man flowe

Jul 13, 2003

2,433

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48

Canada

Mar 5, 2011

#2

• Mar 5, 2011

• #2

You should get a tune... are 19# injectors really enough? I have 24# and the air/fuel is perfect according to the dyno printouts...

 

MY 85 GT

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Mar 7, 2008

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Mar 5, 2011

#3

• Mar 5, 2011

• #3

The 19's are probably pushing it...But with the FMU being calibrated to 12:1 it actually might be on the rich side ..The motor is basically stock except for some bolt ons and the blower so i hope im ok...

 

Mintsick

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Jan 6, 2007

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West Lafayette, IN

Mar 7, 2011

#4

• Mar 7, 2011

• #4

Why not just get it dynoed so you know the legit #'s? We could throw out guesses all day long but that's not really going to tell you what the car is putting out. Here is my wild guess: 270rwhp, 13.2@101mph.

 

Y

YawnY

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Sep 12, 2008

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Mar 7, 2011

#5

• Mar 7, 2011

• #5

Mintsick said:

Why not just get it dynoed so you know the legit #'s? We could throw out guesses all day long but that's not really going to tell you what the car is putting out. Here is my wild guess: 270rwhp, 13.2@101mph.

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Really that low? My 86 with x-303 cam,1.6 roller rockers, Gt-40 intake, 3.73 gears and et streets ran 13.3@101mph. His might be abit faster. I would say high 12's

 

Kdubslugga

Active Member

Jun 7, 2003

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Akron, OH

Mar 7, 2011

#6

• Mar 7, 2011

• #6

low 13's at 105mph. When your Powerdyne breaks get a Vortech!

 

aar0s

Founding Member

Dec 20, 1998

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Mar 7, 2011

#7

• Mar 7, 2011

• #7

5, i bet your making at least five horsepower! and 10 lbs of torque!

seriously, Id say somewhere in the 270 to 280 range, if i had to guess id say the e7's are killing ya.

 

quartermileking

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Feb 21, 2011

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Mar 7, 2011

#8

• Mar 7, 2011

• #8

Im runnin 13.2 105mph in my conv.Trick flow pacage heads cam intake 5 speed 327 street et. Your looking around the same. Sorry man !!Hey they shut you down at the track in a conv.without a rolebar at 13.5 you can tell your friends they threw you out for being to fast with your new S.C.!!

 

Mintsick

10 Year Member

Jan 6, 2007

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West Lafayette, IN

Mar 7, 2011

#9

• Mar 7, 2011

• #9

I don't know much about how the p-dynes are on a 5.0 but I do remember from my days in the 4.3 v6 s10 world that the 'dynes always put out the least amount of HP compared to Vortech and ATI.

 

MY 85 GT

10 Year Member

Mar 7, 2008

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Mar 8, 2011

#10

• Mar 8, 2011

• #10

Yeah i know the powerdyne isnt the best,I am seeing 9 pounds of boost and Boost is Boost....,But for the money i paid for it i think i did ok..As far as times and HP your right a dyno would be the best..I will be running it soon so i will post up times and with that i could get a good estimate of HP with weight and time...Im hoping for low low 13's maybe a high 12's we will see...

 

Cobra912

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May 1, 2005

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Wish I was anywhere but here

Mar 8, 2011

#11

• Mar 8, 2011

• #11

13.63 @ 103

I'd get a wideband on it before you drag it IMO

 

Kdubslugga

Active Member

Jun 7, 2003

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Akron, OH

Mar 9, 2011

#12

• Mar 9, 2011

• #12

MY 85 GT said:

Yeah i know the powerdyne isnt the best,I am seeing 9 pounds of boost and Boost is Boost....,But for the money i paid for it i think i did ok..As far as times and HP your right a dyno would be the best..I will be running it soon so i will post up times and with that i could get a good estimate of HP with weight and time...Im hoping for low low 13's maybe a high 12's we will see...

Click to expand...

I had a Powerdyne bd11a break twice at 367 miles, thats why i hate powerdyne, Carl at 928 rebuilt my unit also. i had a 9lb pulley but only saw 7 psi. Powerdyne isnt complete junk, but its no Vortech or Procharger.