Basic SC setup

[OLD_HATCH]

gonna agree with you on that one. Custom mani, and trying to get things to idle correctly on the street would not be fun times. Doable, but very involved to make a reliable daily driver.

Someones working on that though so we'll see what he come s up with.

on a side note, I'm following you Chrispy...where you posting next!

[Chrispy]

Originally Posted by OLD_HATCH

gonna agree with you on that one. Custom mani, and trying to get things to idle correctly on the street would not be fun times. Doable, but very involved to make a reliable daily driver.

Someones working on that though so we'll see what he come s up with.

on a side note, I'm following you Chrispy...where you posting next!

Not sure yet. I have too much idle time today. The rain here ruined all my plans and jobs for the day

[Telion]

Ahh it would be too bad if it was mounted upside down between the heads as I had shown, I still have my M90 here in case I get another wild whim and I feel one coming on as this stock power stuff doesn't help my boostidis condition at all, and now that I have an aluminum welding contact that pops things out pretty quick I may do it just to say I did. but that will be a few months out. The problem with the Eaton though is just that too much fabrication ie custom manifold and too little demand in comparison to say a Rotrex, even if I designed a fabbed mani for it you could do a better Rotrex setup for the same amount of fabrication cost. Tuning would really be 6's though it has to be done no matter which route you decide.

[Legend-Coupe]

The Eaton is cheaper and more readily available than used centrifugals so that might outweigh the fab work.

Although if you want to IC it it's going to be one hell of a job

[Telion]

True but in the end I think the Rotrex may perform better powerwise than the M90 but who knows.

[Telion]

Maybe I will toy around with it more once this (spare/stock) engine is back out and available.

[Legend-Coupe]

I've heard of them being used/designed for engines up to 5.7L.
And for a basic built i still don't see that anyone would/could go all out like you/telion & dv8 are doing with massive power out put.

Since as you said stock engine could handle 300WHP, if you could built the rest to handle it DV8 mentioned 3.5L pistons won't go past 350WHP so if your overhauling a 3.5L and doing basic mods with out going forged pistons i see that 350WHP is a performance sealing.

Anyway 300-350 WHP should be adequate for a street car

[Telion]

Very true, and with a custom intake manifold it would be feasible.

[Chrispy]

Tuning costs for the Eaton will def outweigh it in the end. Roots blowers are pretty much operating on boost @ idle, Have fun tuning a map for that, not only that, the shift in the lower power band will be HUGE, thats not going to be very pleasing to Legend axles. Ive looked extensively into roots vs centrifugal, I mean I gave up on roots because of the added costs and the sheer PITA of setting it up. If you can pull it off, props to you, but it's not going to be cheap or easy. It's a Legend, and as we know, cheap and easy are not words in the Legend owners vocabulary, especially when dealing with FI

[Telion]

Well the EMS would need to be tuned from idle and all the way through the power band as well anyways, and they (the SC's) also have the ability to modulate (bleed off) the psi through the circular port you see in the diagram on the previous page you could even set it up to fully close at the same time as the VIS opens so that the engine does not see full boost till 3500 rpms if you were to tune it out with a chip or SAFC. I say this because I have thought through all of all of this and agreed cheap and easy lol nope, feasible absolutely!