Injector Sizing

[Tom Sharpe]

(IMHO) rules of thumb -- assuming 6K rpm -- 600 ci @ 10-12 lbs = 900 hp, 500 ci
@ 13-15 lbs 450 ci @ 16-18 lbs = 900 hp. I would rather see a 440 @ 10-12 lbs w/
two T04Bs and about 700 hp. perfectly streetable on 93 nolead ( and 800 ft.lbs @
4k). Just don't let it detonate - things break before you hear it. I went thru
three short blocks before I got boost retard right. Run an automatic and a 10"
converter so you cannot load the motor under 3500 rpm and it will live. be sure
to run water injection also. anything past 10-12 psi is really not streetable -
don't kid a kidder.  you have to run 7/1 compression, forged (read that really
heavy) pistons and rods, race gas, and the crank and block will never make 50K
miles. Trailer queens are one thing.  I'll drive from Il. to CSH-HQ and run 11
flat @130 without cooling the motor, changing tires, changing air pressure,
openning the trunk (bottle rockets), or raising the hood, then drive it home @
25 mpg. If you want to talk street, stay under 15 lbs boost.  TWS  (the opinions
expressed cost me a lot of money)...

Frederic Breitwieser wrote:

> 1. First rendition didn't produce tremendous power.
>    More like 480-500.  This is normal :)
>
> 2. 900 HP?  For my truck motor (400+cid twinturbo efi
>    stroker) the goal is gas-based torque for towing.
>    While not a diesel engine, my goal was to have a
>    low-rpm towing machine, shove it in my work truck,
>    attach a 5th wheel hitch, and tow :)
>
> 3. 900HP is an unrealistic goal.  However setting unrealistic goals in power
> is not necessarily a bad thing.  By not reaching a particular goal, one can
> then rethink, think outside the box, and try something.  The stroker we
> built was mathematically calculated and several others on a particular list
> actually confirmed the math was more or less correct, in the ballpark.  Then
> building it, we actually got in the ball park of the goal.  And if we kept
> the RPMs down, it would have held together.  But that's okay, we learned a
> very expensive lesson.