boost pressure

whats the least or most amount of boost pressure should you run on a hemi with a 1471blower

 

All You Can Get!!

 

I will go out on a limb here.

30 min 50 max but,... will the rest of the motor
handle the 50 lbs,.. that is the new question.

 

I run 55 lbs on my hemi with a Whipple R980 at 76 percent over, does anyone get over 50 lbs with a 1471?

If so, whose supercharger are you using and what is the overdrive percentage?

 

This is a really good ? for a pro mod guy which I am not . I did have the chance to talk with one of the best PM racers and builders who is a current racer while I was at his shop . The friend I was with was dropping off his blower and fuel system for mods and lots of questions were asked and I was listening in on the conversations that went on . Max boost his PM engine made was 36 lbs. one time , and the avg is lower . He stressed it is quality boost and not max boost . Think about it , 20% o.d. , 2700 lbs , low 6.0s at over 240 mph , 2 disc clutch , and a back half e.t. close to 2.0 seconds .

 

At sea-level we hit 51psi with our 1471 roots. We average anywhere from 47-49 at sea-level, and 43-47 at home (about 2900 corrected alt.).

511 ci, 4.310" bore, BAE V heads, 2006 Littlefield with K-11 rotors @ 55%, IHRA legal TAFC.

 

would it make sense to buy the best blower money can buy and run less overdrive to make the boost you what rather than buy a older 60 degre rotor blower and spin it 50 or 70 percent to get the same boost because it takes alot of power to spin them

 

blower

1471 ssi blower s/n 049 would that be 120 degre hi helx blower orjust a standard one