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Anyone Know the specs on the peanut cam in the 305TPI (lb9)

Old 11-19-2000, 05:44 PM
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Anyone Know the specs on the peanut cam in the 305TPI (lb9)

i tried searching couldnot find anything

-Stell

------------------
1988 IROC 305TPI MINT!!
Mods= Accell SuperCoil, MSD 6A, Ported Plenum, No MAF Screans , K & N, 160 Thermostat+ Temp Switch, Relocated MAT, Cold Air
Old 11-19-2000, 06:12 PM
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I don;t recall exactly..but it's 17x/19x @.050 duration, .39x/.40x lift....and I think a 109LS.

Overall too crappy to be worth remembering.

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Old 11-19-2000, 09:42 PM
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Stell,

This is what I have for data:

1985 305 TPI 215 hp / 275 lb/ft Tach: yellow 5000 red 5500

Valve Lift: intake .404 exhaust .415

Lobe Lift: intake .269 exhaust .277

Duration: intake 294 (crank) exhaust 294

Duration at
.075 valve lift 202//206/

Overlap at
.075 valve lift 4/

Accel rate above
.075 valve lift .00553"/deg.

Lift at TDC .085"

1986 305 TPI 190 hp / 285 lb/ft Tach: yellow 4500 red 5000
SPECS ACTUAL
Valve Lift: intake .350 .360
exhaust .385 .388

Lobe Lift: intake .233 .236
exhaust .256 .258

Duration: intake 320/ 226/
(crank) exhaust 320/ 245/

Duration at
.075 valve lift 179//194/ 180//195/

Overlap at
.075 valve lift 4°

Accel rate above
.075 valve lift .00491"/deg.

Lift at TDC .085"

1986 305 TPI 1.6:1 ROCKERS 207 hp / 302 lb/ft Tach: yellow 4900 red 5400
SPECS ACTUAL
Lift: intake .374 .378
exhaust .412 .413

Lobe Lift: intake .233 .236
exhaust .256 .258

Duration: intake 320/ 320/
(crank) exhaust 320/ 320/

Duration at
.075 valve lift 187//202/ 191//203/

Overlap at
.075 valve lift 8° 9°

Accel rate above
.075 valve lift .00484"/deg

Lift at TDC .090"

Roller rockers - 1.6 intake x 1.5 exhaust will add 12.2 HP;
1.6 x 1.6 is worth another 4.4 HP;
Torque peak @3300 RPM, HP peak @ 4400RPM - Slight idle lope
TOTAL 17.4 more ft/lbs and 16.6 more HP

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Vader
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[This message has been edited by Vader (edited November 19, 2000).]
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