a stock 2.8 how much horsepower?

 

135HP@4900 160TQ@3900

This is for 89, some others were different.

 

82 102hp@4800 142TQ@2400

83 and 84 107hp@4800 145TQ@2100

85 135hp@5100 165TQ@3600

86 135hp@5100 160TQ@3900

87-89 135hp@4900 160TQ@3900




[This message has been edited by Joe_L (edited April 14, 2001).]

 

ive heard these rating r @ the crank, but w/ all accessories, is this true? if so, doesnt that mean the crank w/o accessories wud be higher?

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Stock 2.8 MPFI auto w/ Flowmaster ?? Series (dunno what my dad put in), More to come......
New Pioneer Head Unit
Targa E-910 7-Band Equalizer w/ crossover
2x 10" Pioneer subs powered by 300 Watt Jensen amp
2- 6x9" Pioneer (rear)
More to come..... (hey, i dont got a job yet)

 

yeah, i've heard that 2.8L's at the crank and no accesories, would have been rated at about 200hp, roughly. So, in 1967 your car would've been a 200hp beast!!!

 

how do they rate the V8s? and the new 4th gen f bodies?

------------------
Stock 2.8 MPFI auto w/ Flowmaster ?? Series (dunno what my dad put in), More to come......
New Pioneer Head Unit
Targa E-910 7-Band Equalizer w/ crossover
2x 10" Pioneer subs powered by 300 Watt Jensen amp
2- 6x9" Pioneer (rear)
More to come..... (hey, i dont got a job yet)

 

v8's and 4th gens are rated the same as ours, with the accesories all on, but not at the rear wheels. I had a dyno test from hotrod a few years ago (i think 1998) and they had dynos from a v8 trans am, and a v8 corvette, amongst a bunch of other cars. The T/A came to like 301rwhp, and the vette was like 295 or so at the rear wheels. The stang GT though, get this.... was only at 191 rear wheel hp, during the same year, granted that it was a 97 or 98 but still, 191 hp at the rear wheels that pathetic for a v8 muscle car... especially a modern one, guess that's why their muscle car status was removed. i think the cobra was a little higher though, soemthing like 250 or so, maybe, i think i'll dig that mag out and post those numbers. hehe. birds on top!!! well, behidn the viper.

 

The 4th gen LS1 motor is grossly underrated by GM since a lot of them are getting 300-310rwhp and GM rated them at 320hp at the crank...

My guess is 340-350 hp at the crank stock.

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1999 30th anniv. TransAm #877
** BESTS:60ft=1.935 1/4 ET=13.08 MPH=111.8 ** (Only 3.5K miles)
T-TOP,6M-Hurst,12cd, TCS
!EGR * !MAF Screen * ported and polished MAF * !silencer baffles * ! lid baffles * ported and polished TB * removed primary and secundary baffles * sealed ram-air * 9.4k timing-tricker * !CAGS * Mobil 1 * Lou's short stick * BMR panhard rod * BMR poly/poly LCAs * !DRL * Polished SLP resonator catback * 2 Ractive mufflers * 3x3 'fernco' mod * K&N * TB stop grind * Grotyohann headers * offroad Y-pipe* Power pedals * 19+ coats Zaino * WHITE gauges cluster * blue door TA badges * pontiac windshield decal * Polished momo shift **** * 4.5" brosal exhaust tips
Ordered:
Kenny Brown DD SFC
Polished: Calipers * Hood struts * Air tubes * Valve covers,Heat shields , etc.
Later:Cam + spring + pushrods swap + stage II heads
2000 Black Z-71 K1500 5.3l
ext.cab * !intake baffle * !MAF screen * !EGR mod

 

ok just to let you all know all horsepower ratings are with the accessories ON and at the crank/flywheel. They converted to this system back in the 70's when all the manufacturers were advertising different numbers for the same engine.