Thread: Holden 186 top speed?

I've had my IIA 88 up to 140, but that was in OD and a slight downhill, and a very long straight...

Was a bit of a moment, for us both! I don't do that anymore. We stick to 110 now.

If I stood on the brake pedal at 110 I'd do a front-flip! Maybe you lot need to adjust your brakes...

My Showroom Stock EH149 road race sedan would pull 6200 rpm no problems.

Originally Posted by akelly

I've had my IIA 88 up to 140, but that was in OD and a slight downhill, and a very long straight...

Was a bit of a moment, for us both! I don't do that anymore. We stick to 110 now.

If I stood on the brake pedal at 110 I'd do a front-flip! Maybe you lot need to adjust your brakes...

You must have a PBR power brake sticker on the back window

Originally Posted by nicho

Just put a mild cam and a set of twin strombergs on it with electronic ignition and some mild head work and extractors a Holden 186 will scream all day and still live to see tomorrow. Fuel economy well if your worried about that why did you buy a Landrover

Many years ago I had a 186 with all of that fruit (except I used a 2 barrel carb from a 253) in a Series 3 SWB. Down a long hill on the Hume, at 80mph with no overdrive, there's that much s... going on all at once that it's beyond description . I reckon I could have coaxed a bit more out of her but the doortops were flapping that hard I had to ease off.

Cheers,
Anthony.

If you want to drop the revs (or up the speed) you could always fit classic rangie diff centres 3.5 instead of the standard 4.7s If youve got a shorty Or stage 1 diffs for LWB

Good way to throw a rod/ break a piston crown in a 202.

A balanced 186 with decent cam, headwork and carburation will easily see 6000rpm. The vehicle and the operator are the limiting factors here

JC

Originally Posted by justinc

Good way to throw a rod/ break a piston crown in a 202.

A balanced 186 with decent cam, headwork and carburation will easily see 6000rpm. The vehicle and the operator are the limiting factors here

JC

Refer post no.13. A 149 with single Stromberg, standard manifolds, only head modifications permitted were by removing metal. Creative engineering from the Smoky Yunick School of Rule Book Compliance. Pulled 5600 rpm in top down the straight at Lowood. Would run to 6200 rpm in 1 & 2. Dead set "Showroom Stock" and no scrutineer ever managed to find otherwise. Used a diff centre from a Bedford ute. I forget the ratio, may have been 4.11. This was not kosher but was never found. Other than the diff. ratio, there was nothing done that the rule book forbade, unlike others. Cheating was rife in this class.

Originally Posted by justinc

Good way to throw a rod/ break a piston crown in a 202.

A balanced 186 with decent cam, headwork and carburation will easily see 6000rpm. The vehicle and the operator are the limiting factors here

JC

Aftermarket forged pistons, Starfire/ blue motor rods. Blue motor counterbalanced crank modified to fit the red block. 7500 rpm a la HDT Toranas.