Open for suggestions - Centrifical or Roots Blower

Most guys will tell you 10.5:1 is too much compression for a blower and they are right. Your car will always be on the edge of disaster. You will never be able to run high boost unless you use 7 dollar a gallon race fuel. Why didnt you change out to dished pistons when you did the headswap? You have blower heads and nitros cylinders. You may be ok with 6lbs of boost i guess but thats gonna get old fast lol. With your setup and dished pistons you could have been makin 450rwhp.

 

Hmmmmm ok hows this sound lol. I know nitros is a pain in the ass. And im thinkin this isnt your DD. So..... Go get a KB and push it to the limits. I made 425hp with 14lbs of boost on a non pi motor with a procharger. Of course i didnt make that for long lol.

 

if your decide to boost your stang a roots type blower will be more compatible with your high compression

 

well I have rode in both roots and centi and I can tell you that for a DD car the roots is wayyyy more fun than the centi blown car. Boost is instant with the roots and the centi has to build up boost, I love that instant power from the roots :naughty:

 

Speaking of the Kenne Bell, how available are they? I mean, are these units ready to ship or are they backordered forever? I'm somewhat interested in an alternative to centifugal superchargers.

 

u can go over 6 psi, many people have done it with the head swap, but u will have to run the octane to do so. and a tune will be very very important seeing as you dont wanna see any forms of detonation.

 

I would do a Kenne Bell with Meth injection. Go ahead and get the bigger Kenne Bell for more room to grow and the fact that it doesn't have to work as hard will keep the intake temps down alittle.

I did put out big numbers with a certri and it is an animal from about 3,500 on up, this D1SC build boost fast. But in a way, I wish that I would have went with a Kenne Bell instead but I got a really good deal on my Procharger.

 

that sounds like a plan :banana:

 

I ran a 10lb Novi 2000 on a headswapped car for about ten month's, and 10k miles, no problems. Don't try for max power, make sure you have plenty of fuel, don't beat on it in the heat, basically behave like you have good sense and you'll be fine. I had double you mileage also. I did break down and build a 9.2:1 stroker for reliability and more boost though

 

Keep in mind that there are different methods used to port P.I. heads. All I've seen grind down the tongue/"swirl fin" to unshroud the intake valve, and most grind down on the quench pad opposite the spark plug. What this means to you: the chamber volume is higher, lowering compression compared to what it would be if it were an "as-cast" P.I. head. For a specific example, the D.S.S. full ported heads (NOT the port match) have a final chamber volume of 50cc, whereas a non-pi head has a chamber volume of 51cc., which is a miniscule difference. Factory P.I. has a volume of 44cc. So in that specific case you could run just as much boost as you would a non-pi head (bottom end being the limitation). I would consult whoever ported your heads and ask what the chamber volume typically ends up being after that stage 2 port job that you have is performed.

 

Vortech T Trim!

On a DD I'd get a centri instead of the twin screw/roots since you wont always have boost. but thats just me

 

What does it feel like to drive a blower with a Centri.... I have 4.10's in the rear end and I almost always hit my 3k plus mark when driving... does that mean ill always have the boost goin? Also Ive riddin in a turbo car before, does it have that "just keep puttin your back in the seat feel" during acceleration??