e9 hp info

[nelm1994]

e9 400, 450, and 500 from the mid to late 80s. What makes a 400 into a 450 and a 450 into 500. What parts are different.

What parts are the  same.

[fjh]

Fuel pump set up  ., injectors  Turbo ,  And timing ! the block  cam and crank don't change except in the land of auz where the cam was tweeked a bit!

[brutus998]

Fuel % and timing are the difference.  Even in Australia they have e9 in 525 and 610 hp versions.  

[ws721]

What is the timing difference?

[AZB755V8]

On 4/9/2016 at 5:52 PM, ws721 said:

What is the timing difference?

The simple explanation, more timing advance the higher the HP and higher RPM needed to make it work. Running a lot of timing (19 plus degrees) at 1500-1800 is not good for pistons, rod bearings heads, bent rods and EGT.  Not to mention a few rods airing out engine blocks (throwing a leg out of bed)  Stock timing is 13-17 degrees depending on HP rating and year of production. The lower the timing advance the better the emissions but lack of power but easer on parts.

The old 865/866 ran up to 31 degrees in stock settings. There were a lot of cracked heads, bad bearings, thrown rods and blown head gaskets on them.