AND ITS D1SC

Hey guys i know alot of people are runing prochargers now but in am worried about my moter holding up it has 82514 miles and i got the kit and im throwing a mild cam in it and running the stock pulley that comes with the kit gonna run 93 in the truck with prob 60# injectors mayb 80# with a walbro 450 not sure what kind of numbers im gonna b pushing but will my motor hold together i know the tranny is the weak point what everyone has told me im gonna get it built so now i worried about the motor holding its gonna b just a cruisier on nice days and nights but if i wanna stomp into it im gonna b able to without to many worrys thanks if u can help really apperciate it

 

Yea it will hold... just get a good tune with it.

Have you put any thought into what cam you will run? What headers? What torque converter? All those parts are very important to making it run really well right off the line and never let up.

I don't think you will run much boost with the pulley they give you... it wont be logn before you swap that out.

 

No i havnt decided on a cam suggestions would be apperciated i kmow i can prob call comp cams and tell them what i want and the would have one but im kinda looking into what im gonna get before i buy it.
And with the headers and full exhaust im gonna wait till mid summer or maybe next winter im gonna go with slp maybe dynatech full also

and i dont know much about torque converters??? they gonna mess with driveing around town??? thanks for all the help

 

With a D1 I would go with at least a 3200 converter... and cam choice all depends on what kind of idle you want, how high you want to shift, and how loose you are willing to go with the converter.

I'd look into ARH. A 6.0 with boost likes the 1 7/8" primaries. Not a must, but you already have the procharger... so I would definitely go that route.

 

thanks alot man what brand of converter would you get and what do you mean by how loose you are willing to go

 

If it's not your daily driver put a converter that will at least flash to 3600. Converter can make or break a procharged truck. Call Circle D.

 

What he said. When I say loose I mean how it feels when daily driving. Around town at 1/4 throttle your RPM's will be higher with a looser converter. It takes some getting used to, but once you do the performance gains are out of this world, especially with a procharger that loves RPM.

Next you have to think about a cam. Any idea how high you want your shift points? 6500? 6000? Somewhere between, or even higher? Idle quality plays into it too. For something that itns a daily driver I would aim at 6500 or so with a healthy chop at idle and a decent split.

something like a 222/234 on a 114 or 115 +3. That would pull pretty hard all the way to 6500 RPM and feel real strong with a 3600 converter. With 0* overlap or -2* overlap it would sound real healthy at idle too...

to give you an idea it would sound somethign similar to this
Cammed 6.2l Open cutout - YouTube

 

so i prob sound like a dumb **** for saying this but i dont care im tring to learn what im gonna be doing so what the main differnce between my stock converter and 3600 converter or if you dont want to explain maybe point me in the direction of a good web site so i can read about them thanks alot guys

 

This web site explains it really well. Basically, what a 3600 converter will do is allow the RPM to shoot right to 3600 when you floor it, rather than 1600 of the factory converter. needless to say you come off the line like a bat out of hell. Especially with a procharger that needs RPM to make boost and spools to some extent.

Trailblazer Stall converters

Here is a video... i really wish this showed the tach, but its a bolt on only car, and that thing scoots right to 50 in a hurry.
http://www.youtube.com/watch?v=qa0St3xM29s

Here's another:
http://www.youtube.com/watch?v=mK8i0DwHeMA

So next for me to ask is will you be doing this work yourself, with a friend, or paying a shop?

 

In a very simple term it's the RPM the vehicle will start to move when you accelerate. How loose it is will affect how high the RPM's will creep up when normal driving before allowing it to move.

When someone says 3200 or 3600 etc that's ideally the RPM will flash to when you stomp on it and go WOT and will keep the RPM's up between shifts to keep you up in the power.


Here is a video of my old truck. This is a 3400 Circle D Multi Disc and some normal driving

https://www.youtube.com/watch?v=q3FzFwazhZ4

Here is a WOT pull. I brought the RPM's up before launching. Watch how little the RPM's drop at wot during shifts
https://www.youtube.com/watch?v=eRHLGKlqiBA