L98 cam in all SD 90-92 305s check?
01-04-2006, 05:13 PM
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Car: 91 Formula WS6
Engine: 305 TPI
Transmission: five speed
L98 cam in all SD 90-92 305s check?
I have a '91 Formula with the LB9, N10 opt. dual cats, G80 rear and five speed. Most of the literature says G92 cars came with the L98 cam:
From Tech data on TGO website:
1990-1992
305 5spd / 305 AT 10088155* .350 .384 179 194 109.0
305 G92 5spd / 350 AT 10111773* .413 .428 202 207 114.5 (116/-116)
*roller cams
Should this be amended to say also G80 five speed? Everything I am reading here says I have the L98 cam. Thanks for your input!
From Tech data on TGO website:
1990-1992
305 5spd / 305 AT 10088155* .350 .384 179 194 109.0
305 G92 5spd / 350 AT 10111773* .413 .428 202 207 114.5 (116/-116)
*roller cams
Should this be amended to say also G80 five speed? Everything I am reading here says I have the L98 cam. Thanks for your input!
01-06-2006, 10:01 AM
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Location: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
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Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
IIRC all TPI cars from 1990-1992 used the same Cam... LB9 or L98
It is an easy one
John
It is an easy one
John
01-06-2006, 10:59 AM
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Car: 91 Formula WS6
Engine: 305 TPI
Transmission: five speed
Thanks John! Now I can go on my merry way with the project...I'm having a good time with it! 
01-10-2006, 02:15 AM
#5
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Originally posted by okfoz
IIRC all TPI cars from 1990-1992 used the same Cam... LB9 or L98
It is an easy one
John
IIRC all TPI cars from 1990-1992 used the same Cam... LB9 or L98
It is an easy one
John
01-10-2006, 08:26 AM
#6
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Join Date: Mar 2001
Location: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
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Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
From 86-89 there WAS the "Peanut" cam in the LB9/A4's that was also used in the 86-87 LG4/88-92 LO3 engines.
The 87 L98 cam is almost identical to the 90-92 cam except the 90-92 cam had more lift. The 88-89 Cam was the most aggressive for the L98 engines, but with the MAF it was more restricted. The SD system is why the 90-92 was slightly hotter.
John
The 87 L98 cam is almost identical to the 90-92 cam except the 90-92 cam had more lift. The 88-89 Cam was the most aggressive for the L98 engines, but with the MAF it was more restricted. The SD system is why the 90-92 was slightly hotter.
John
01-10-2006, 07:12 PM
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Car: '90 Trans Am GTA
Engine: LB9
Transmission: 700R4
Axle/Gears: 2.73's
Originally posted by okfoz
IIRC all TPI cars from 1990-1992 used the same Cam... LB9 or L98
IIRC all TPI cars from 1990-1992 used the same Cam... LB9 or L98
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01-11-2006, 11:12 PM
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Car: Recaro Option T/A
Engine: 305 Tuned Port Injection
Transmission: Automatic
Axle/Gears: 3:27 Borg Warner
Originally posted by TA76
A little off topic, but didn't the 85 TPI cars have a unique cam?
A little off topic, but didn't the 85 TPI cars have a unique cam?
01-12-2006, 09:52 AM
#12
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Join Date: Mar 2001
Location: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
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Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
I believe that the L98 cam in 1987 is similar to the 1985 LB9 cam specs. The obvious difference is rather than roller lifters tho it was for standard hydrolic lifters.
John
John
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