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Engine Tech A great place to get info related to V6 engines, cams, pistons, heads... etc. |
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Thread Tools | Display Modes |
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#1
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Low end flat spot
I've got a pretty bad flat spot at the low end. The car idles at about 900 and drives well once your up in the rpm's a little bit. Any thoughts?
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1987 Turbo T Limited with leather. Girdled, stroked, GTK 850, 79 lbs. injectors, ATR headers & DP Comp 212/212 Roller Cam, Diamond Pistons, TCI TH 400 |
#2
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Scan tool reads the car is going lean
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1987 Turbo T Limited with leather. Girdled, stroked, GTK 850, 79 lbs. injectors, ATR headers & DP Comp 212/212 Roller Cam, Diamond Pistons, TCI TH 400 |
#3
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I take it you are using a chip.. a little detail please..
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Jack Cotton Cottons Performance 413-789-0531 |
#4
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Is this a tip in problem, or after that? If in the lower end is acceleration enrichment coming in, or Power enrichment not coming in early enough? TPS flat spot maybe?
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1986 T-Type Leather/column What turbo? Powerstroke IC, Forged Stroker,GN 1's,Razor alky, XFI, 3.5" DP, Extrm stg2 tranny,TA Headers PTC 9.5 N/L 3400 stall |
#5
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Turbo tweak chip with 79 lbs injectors 3 1/2 inch MAF car runs super after initial start. If you leave with a heavy foot its fine, but, if your just "driving" it falls on its face then takes off at about 2000 rpm's.
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1987 Turbo T Limited with leather. Girdled, stroked, GTK 850, 79 lbs. injectors, ATR headers & DP Comp 212/212 Roller Cam, Diamond Pistons, TCI TH 400 |
#6
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TPS is .48 idle and 4.6 wot.
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1987 Turbo T Limited with leather. Girdled, stroked, GTK 850, 79 lbs. injectors, ATR headers & DP Comp 212/212 Roller Cam, Diamond Pistons, TCI TH 400 Last edited by IATEAV8; 10-21-2008 at 09:15 PM. |
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