[ROVERNET - UK] 2000Tc rebuild

[Ron Morey]

Bill, I have used Mohawk 10% ethanol blend for about 10years. I believe they 
have dropped the octane rating again to 92. The TC runs fine on 90 but the 
ignition must be retarded to about 4BTDC instead of 6. I put up with a 
slight ping and occasional dieseling. Otherwise it runs well. I forget if 
you are located in the US or Canada. Several US states have ethanol blends 
as well. I would stick with 10:1 compression but there are trade offs in 
doing so.
Ron.

>From: "Bill Robertson" <rover2000nut at hotmail.com>
>Reply-To: rovernet at lyris.ccdata.com
>To: rovernet at lyris.ccdata.com
>Subject: [ROVERNET - UK] 2000Tc rebuild
>Date: Sun, 31 Oct 2004 00:46:48 +0000
>
>I,m just starting to build up my other 1967 2000TC's motor right now , 
>before building up a 2200 overbored engine for my 69  TC........Everything 
>in the fleet will be mobile and roadworthy by next spring i 
>hope...........My question is as i searched through a huge lot of parts i 
>scored off a disheartened Rover owner, there was a set of new 9:1 
>pistons...........I have many old 10:1 and one set of old 9:1 that have 
>come from many parts cars ...............My 69 has 10:1 right now and in 
>all the years i've had Rovers they have  all been 10:1 
>engines..............Is there much less of a performance difference  with 
>the 9:1 or should i go ahead  and use them and not have to worry about 
>Octane boosters anymore............I just don,t want to end up with a TC 
>that runs like an SC
>
>Bill Robertson
>
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