BRE_dAtSuN Posted February 24, 2011 Author Report Share Posted February 24, 2011 hrh yeah i think i am running a bit lean havent had a chance to check my jets since i have been working on some other cars pretty late to make some money... i did disconnect the vacuum advance as hainz told me... i have matchbox distributor and i beleive its like at 6 or 7 degrees btdc... as i stated before today because is was pretty cold out i had no problems so i know that maybe some bigger jets and wrapping the manifold and such and i should be good... dimedriver as for toluene i believe its rated at 114 octane or a little higher so i would be able to mix less than if i buy 110 but its 17 dollars a gallon while 110 is 7 Quote Link to comment
banzai510(hainz) Posted February 24, 2011 Report Share Posted February 24, 2011 once summer comes youll still have this proplem. KA Ping! HRH the Z20 pistons even dough they are flattop dont they sit lower in the bore as the pin height location is different. Thus being lower compression. Bre, Your flogging a Dead Horse here!!! Xerox. Dave and another guy on hear either have Flattops on L20s or on LZ hybrids and all have these proplems. Quote Link to comment
datzenmike Posted February 24, 2011 Report Share Posted February 24, 2011 Hainz, I've has a couple of Z20E apart and they come to the top. The Z head is about 10 cc larger than the L head so is about the same as an 11 cc L20B piston. Quote Link to comment
banzai510(hainz) Posted February 24, 2011 Report Share Posted February 24, 2011 Mike I swear they were different. at least the Z22? the pin height otherwise I have never seen the same part # for a Z20 piston and a L20 piston. HRH says he has a Z20piston in a L20block. I know the Z20 and L20 are very close to the same block?. BRE DATSUN Good luck Quote Link to comment
datzenmike Posted February 24, 2011 Report Share Posted February 24, 2011 Z20E and L20B rod length and piston pin heights are different but add up to the same (close) total length to bring the pistons close to the top of the block. Z20E 152.5mm (rod) + 31.75mm (pin) = 184.25mm ............ long rod motor with flattops. L20B 145.9 mm (rod) + 38.1mm (pin) = 184mm .................. short rod motor with dish. Quote Link to comment
BRE_dAtSuN Posted February 24, 2011 Author Report Share Posted February 24, 2011 thanks guys for the advise... well in march i get my record expunged and i can start work again.. then ill be set =) cant wait Quote Link to comment
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