how much BWHP

[89gtconvertible]

I just bought my first mustang and have some questions about it that some people here might be able to take a stab at. Its a 1989 gt convertable. It has the folowing done to it. 302 block with gt40 intake 65mm throtle body and 73mm mass air sensor • Edelbroc Performer RPM oversized heads • Edelbroc aluminum valve covers • Edelbroc 30lb lifter kit • Edelbroc Rolling Thunder rumble cam • Edelbroc aluminum pistons • New altenator • Paxton sn89/ Supercharger • New spark plugs • New wires • New plug cap • Brand new “Super Shorty” throw clutch • New clutch cable • New 355 gears • New 5 speed TKO tremec transmission, A new high flow fuel pump and 30lb injectors. subframe connectors installed and a 10point cage with 5 point harnesses installed. Can anyone guestimate the performance of this engine and car??? I am in the service and havent driven it yet. My friend at home said it is sickening fast. I am just curious of the horsepower estimates and if all these parts are a good match. OH and it is running 6psi of boost.

 

[MY 85 GT]

Sounds Like a nice car..Post some pictures....I have a simular build going on..87 GT convertible..AOD.3.73's,GT40 Heads 5 angle valve job.slighty milled and cleaned up..GT40 Intake.1.7cobra roller rockers .70mm TB,90mm LMAF, 42 lb injectors,255 lph walbro fuel pump,UPR powerpipe Paxton SN93 blower 6 psi,BBK shortys undecied on cat back...lol...I was told maybe 300-350 rwhp thats what everyone was saying maybe low 13's high 12's...

 

[apollo12]

I just bought my first mustang and have some questions about it that some people here might be able to take a stab at. Its a 1989 gt convertable. It has the folowing done to it. 302 block with gt40 intake 65mm throtle body and 73mm mass air sensor • Edelbroc Performer RPM oversized heads • Edelbroc aluminum valve covers • Edelbroc 30lb lifter kit • Edelbroc Rolling Thunder rumble cam • Edelbroc aluminum pistons • New altenator • Paxton sn89/ Supercharger • New spark plugs • New wires • New plug cap • Brand new “Super Shorty” throw clutch • New clutch cable • New 355 gears • New 5 speed TKO tremec transmission, A new high flow fuel pump and 30lb injectors. subframe connectors installed and a 10point cage with 5 point harnesses installed. Can anyone guestimate the performance of this engine and car??? I am in the service and havent driven it yet. My friend at home said it is sickening fast. I am just curious of the horsepower estimates and if all these parts are a good match. OH and it is running 6psi of boost.

I'd like to see pics! and thank you for your service!

 

[89gtconvertible]

well a few people were saying if i have it tuned properly to expect 450 or more. but i am not able to tune or dyno it just yet. Maybe in march. I will work on posting some pics soon.

 

[89gtconvertible]

http://i94.photobucket.com/albums/l95/ilaurain/Bgr5EwmkKGrHqYH-CQEsMKuO7JLBLGKniQ7.jpg

http://i94.photobucket.com/albums/l95/ilaurain/BgrBCnwmkKGrHqMH-C0EsMEGU9HqBLGKo2J.jpg

http://i94.photobucket.com/albums/l95/ilaurain/BgrBDggmkKGrHqYH-CwEsMp6CRLBLGKo9ic.jpg

 

[Tanus]

nice car, best way to figure HP, even better than dyno IMO, is hit the drag strip, most tracks have scales, weigh your car. then search google for "weight/ trap speed= hp" calculator, input the #s and it will give you a very acurate RWHP #.

 

[dls322]

Probably closer to 350-375 HP
And your tune is a big thing. Could be at 200hp with a rotten tune...haha. Are you running an aftermarket computer?

Smart to keep the boost at smaller practical levels. I think i'm about 6-8 psi on mine. More boost superheats the air and is hard on the charger, wind up loosing power and deminishing the sn life substantially.

 

[Kdubslugga]

the old SN paxton is an old school blower, prolly not makin to much boost, id say your at 350-375 at the tires. You got some good basic mods already done, a good tune is not a bad idea for ya!!