I'm ready to pull the trigger on a maggie and I'm debating on the 1900 or 2300, but not for the reason of power potential or boost. What I'm worried about is belt slip. I don't feel like going down the road with of trying to do a 8rib for the 14+ trucks so I'm wondering if I should go with the 2300 to combat the risk of belt slip. What I'm looking at is the 3.1" pulley on the 1900 and the 3.6" pulley on the 2300 for my desired power level (8psi).

With My 03 I got the mp112 and kept it that way the whole build (7 yrs), I never chased power goals or et's so I'm not worried about blower envy going with the 1900, but purely belt slip, and maybe higher iats. Thoughts on this? Itls been a while since I was really into this. After I built up my 03 I haven't been paying much attention to the scene and it looks like a lot has happened in 7 yrs.

 

You are going to need a smaller pulley than that to hit 8psi. For your 6.2, you will probably need a 3.25" for the 2300, or a 2.8" for the 1900.

In terms of belt load, at 6000rpm lets say, the 1900 with a 2.7" pulley and stock truck crank pulley will be about 139lb (48hp). With the 2300 at 3.25" pulley will be about 134lb (46hp). Lets say you have 180 degrees of belt wrap around the blower pulley, the 3.25" pulley will have about 20% more surface area for the belt to grab.

I would personally go with the 2300 because you have the option of pulleying down or using overdrive pullies if you get the jackshaft version for the rear. IATs will be about the same between the two at the same boost level.

 

You shouldn't have belt slip with a 3.1". At least nothing really noticeable. At 8 psi you shouldn't have slip or IAT issues.

Now that I am running two HX's I only see a 24-26 deg IAT rise on a 0-120 pull. That's a 2300 with a overdriven crank and a 2.8 drive pulley.

 

Remember his 6.2 DI is high compression. Also pretty sure they don't offer a jack shaft for the DI motors.

 

I was guessing those pulley sizes off what a rep from Magnacharger told me. He said their 6.2DI kit ships with a 3.4 pulley for 6 psi. The only maggie kit offered for the DI motors in the front drive and the belt has a heck of a lot of distance bewteen it and the closest idler pulley which can't help with belt slip. Not sure why they chose this belt routing.

 

Ya I don't like that routing either.

 

Yea I hate the way it looks. The belt routing on the 2014+ lends itself perfectly to a jack shaft set up too... kind of a shame.

 

So far I've gotten vendors to get me a price for the eforce which is a new design for the DI motors and uses the tvs2300 down to within $250 of the 1900 Maggie and I like the belt routing much better. It may be time to jump ship.

 

Always a option. I like the Maggie Heartbeats.

 

I like them alot too. I like all the CFD they did on them to eak out air flow efficiency. Earlier on when I started gathering details for different kits, I called magnuson they said they don't make heartbeats kit for the trucks, nor do they plan to. For a DD I didn't feel like trying to piece together a kit for who knows how much more. I was bummed about that because this video really got me hooked, I'm very much a details kinda guy and I love the thinking that goes into a design.