4g61t.org

Whats the specs on the 4g15 16 valve motor is it much different than the 12 valve?

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1996 Honda civic lx
1994 Ford Ranger
1991 Dodge colt 4G15

They make a 16 valve 4G15? Guess I have been out of the 1.5's for a long time now.

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2012 Explorer Limited
1989 Colt GT clone 4G63t auto
1992 Talon TSi
1990 Talon TSi
1995 Crown Vic
1993 Ford F-250 BBF
1987 Chevy Sprint Turbo

Yes, but in later years, and I believe RPW used to make a kit. RPW is really expensive for the minimal amount of possible HP gain, and the later 4g15 engines wont fit(wrong side). 4g15 in our cars came in 8 and 12 valve versions. The difference between 8v and 12v' are vast, its kinda like mitsu's overhaul instead of a simple upgrade. The 1.6 4g61 came with 16v though.

These values are for US spec cars:
4g15 8v(1.5L):81 HP
4g15 12v(1.5L):92 HP
4g61 16v(1.6L):123 HP(super rare, unless you pull it from a Hyundai)
4g61 16v turbo(1.6L):135 HP(rare)


BTW the conversion to DOHC for the 4g15 nets you 103HP. meh
http://www.team-bhp.com/forum/modificat ... bishi.html

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4g61t.org
4g61t.com

The 63t swap is the cheapest easiest way to make real power in a colt. You can buy everything to do it but the axles (unless they're used) to make it plug and play off this forum.

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Had a:
1991 Eagle Summit ES Hatchback - 4g15 12v 5spd
1991 Dodge Colt -4g15 12v 4spd
Have a:
1978 Oldsmobile Cutlass - 468BBO TH350
Round 3:
1990 Dodge Colt-4G63T 5spd