The right cylinder heads and boost - SC Guys come in

I believe I am true gear head. I am constantly changing my mind about what would be a lethal potent combination under 700 horse power. I want your guys opinion! Recently I made a thread about Kennebell + trickflow heads and maxing out the stock block but I got to thinking...

What would would be a better combination, (trickflow heads + D1 Procharger) or (Kennebell 2.1 + Ported PI heads). What do you think would be a lethal combination for the street and why? Sometimes people fall into the trap of getting the biggest blower but sometimes that is not necessary. I rather would be fast in my bracket of power/racing. No matter what the shortblock would be built in the future, I just want to know what route would you perfer for the street. Mind you fuel and supporting mods come into a play here as well.

Tell me about your experiences....

 

I've been in both and the positive displacement blower is a lot more fun but my only concern is on the highway. The procharger will definitely out shine the KB but I do a mixture of both types of driving. You are right though, the D1 and TFS heads will be a lot more expensive but if its just as fun as KB I would go that route. Do you know when a PI intake manifold will max out? I heard past 600hp thats when you start running into flow restrictions. What do you think, I know you run a centri so how do you like your car for street manners.

 

I really like the centri setups, but they have to be setup just right. My power goal is to be under 600hp to tell you the truth even with a built short block, anything past those power levels you have to upgrade everything and it is not worth it, plus the power is unuasble where I live since it is so densely populated. I believe the twin screw have the same features, but once you get into boost it is a different story. I was also looking at lysholm 2.3L twin screw blower but I do not think they make them for the 2V's anymore. They made a few that came on saleen extremes, they are slightly more powerful then KB2.1's. I also love the fact that on the highway a centri feels like it is forever pulling once its fully spun up.

A proper turbo is awesome but I hate that you have to devote the headers to spool it. It kills some of the rawness from the V8 at w.o.t, but I understand where you coming from.

The kennebell will be lots of fun on the street but can a brother have a best of both worlds? Would having a really low compression long block make the car feel like a dog down low on the street?

I drive a turbo audi for a daily so the SN stays in the garage. It used to have daily driver duty about 4 years ago. Now I am just slowly restoring all the worn out parts that is on it and turning it into a fun car again. Money does dictate what route you go but right now I am trying to stay under a 10-12k budget. I am not married yet, and I have the freedom to mod the car to how I like since I am getting into my career. If I do not mod this car now, it will take forever once you compound wife, kids, house etc priorities change.

 

No e85 here man. The highest octane we got were I live is 94 I believe from the Sunoco gas station in my town. Positive displacement blowers work more efficiently from what I read with really low compression but if I run a centri I do not want it that low. 9-10CR should be nice for a good peppy engine.

I agree man, the family and wife chapters are coming up in my life and I want the car atleast almost complete before that starts. I know how that goes and everything takes the back door with passions/hobbies. I'm glad your building your reserve up again, it feels good to put B/S/T into your mustang.

Subframe connectors, LCA's, UCA's, would do the trick. Suspension will be done before the heavy engine work. What's the point having all that power if it can go fast in a straight line. Tire + Suspension = WIN

 

I totally agree about having a "competitive edge" at a certain power level. A lot of people can't grasp this concept, do your want a tire burner or a car that hooks AND books!

D1 has a lot of room to grow this is why I like this blower you can run it at different boost settings and get different power out puts out of it. I feel like its a blower that is properly sized for our engines. Anything bigger than that you need more cubes to push the power. F1A to C I feel like you need 331 cubes or more for efficiency.

 

that is good to know, temps in NJ stay relatively low most of the year except for summer. I would like a higher compression motor because I do not want the engine to be doggy on the street a low RPMS. I know KB's would love 8:5:1 but the low end torque they make makes up for it. I already have 75MM TB/Plenum so a ported PI intake and some nice heads will really wrap it up!

I like that cocktail! Sounds like it has potential to make some great street power and stay reliable. When do you need a 8-rib setup?