3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

stock times for 305's and tpi 350's

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Old 03-04-2004, 03:40 PM
  #16  
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Originally posted by MY91Y84
there quite a bit of not totally correct info here....

the LG4..5 speed or not would be lucky to run a low 16...the L69 would be mid 15 and LO3 wouldnt get a 15 if it was pushed down the track

Vid of my LG4 running a 15.04 (ran the 14.94 the same day, unfortunately it wasn't video taped)
http://www.transamws6.com/video/Manny_1504.mpg

this is the LG4 engine
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Old 03-04-2004, 09:59 PM
  #17  
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Originally posted by Zepher
Vid of my LG4 running a 15.04 (ran the 14.94 the same day, unfortunately it wasn't video taped)
http://www.transamws6.com/video/Manny_1504.mpg

this is the LG4 engine

manny,
im talking about stock LG4's..with the ****ty OEM quadracrap and intake....granted those 2 mods wont gain a second, so your car is an exception =)...i meant to type 15 instead of 16,...but i think a "fast" STOCK LG4 would be hi 15's AT BEST...
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Old 03-05-2004, 12:17 AM
  #18  
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Never was the LB9's 205HP the highest of the LB9's. The 85 Irocz had 215HP and 275LBS/ft torque. The 86-87 Irocz/Trans AM's with the auto were 190hp & 285lbs/ft torque. 87 LB9 with the M5 were rated at 215hp and 295lbs/ft torque. Never mind here you go. Heres a table of it.

85 IROC-Z
Trans Am A4 LB9 V8 9.5:1 5.0 (305) 215@4400 275@3200 TPI
86 IROC-Z
Trans Am A4 LB9 V8 9.5:1 5.0 (305) 190@4000 285@2800 TPI
88 IROC-Z
Formula
Trans Am A4 LB9 V8 9.3:1 5.0 (305) 195@4000 295@2800 TPI
88 IROC-Z
Formula
Trans Am
GTA M5 LB9 V8 9.3:1 5.0 (305) 220@4400 290@3200 TPI
89 IROC-Z
Formula
Trans Am
GTA M5 LB9 V890 IROC-Z
Formula
Trans Am
GTA A4 LB9 V8 9.3:1 5.0 (305) 210@4400 285@3200 TPI 9.3:1
5.0 (305) 230@4600 300@3200 TPI
91 Z28
Formula
Trans Am
GTA M5,A4 LB9 V8 9.3:1 5.0 (305) 205@4200 285@3200 TPI(it went down from the previous year by 5hp for some reason.)
Strongest L98 was the 90-92 with 245HP and 345lbs/ft.
Just in case you wanna read the whole table here it is on Thirdgen.org


3rd Gen Power outputs
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Old 03-05-2004, 11:12 PM
  #19  
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Originally posted by Irocz85
Never was the LB9's 205HP the highest of the LB9's. The 85 Irocz had 215HP and 275LBS/ft torque. The 86-87 Irocz/Trans AM's with the auto were 190hp & 285lbs/ft torque. 87 LB9 with the M5 were rated at 215hp and 295lbs/ft torque. Never mind here you go. Heres a table of it.

85 IROC-Z
Trans Am A4 LB9 V8 9.5:1 5.0 (305) 215@4400 275@3200 TPI
86 IROC-Z
Trans Am A4 LB9 V8 9.5:1 5.0 (305) 190@4000 285@2800 TPI
88 IROC-Z
Formula
Trans Am A4 LB9 V8 9.3:1 5.0 (305) 195@4000 295@2800 TPI
88 IROC-Z
Formula
Trans Am
GTA M5 LB9 V8 9.3:1 5.0 (305) 220@4400 290@3200 TPI
89 IROC-Z
Formula
Trans Am
GTA M5 LB9 V890 IROC-Z
Formula
Trans Am
GTA A4 LB9 V8 9.3:1 5.0 (305) 210@4400 285@3200 TPI 9.3:1
5.0 (305) 230@4600 300@3200 TPI
91 Z28
Formula
Trans Am
GTA M5,A4 LB9 V8 9.3:1 5.0 (305) 205@4200 285@3200 TPI(it went down from the previous year by 5hp for some reason.)
Strongest L98 was the 90-92 with 245HP and 345lbs/ft.
Just in case you wanna read the whole table here it is on Thirdgen.org


3rd Gen Power outputs


i said the AUTO LB9's werent over 205 (forgot about the 85)
im well aware of the MOSTLY correct TGO tech info
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