s491/100/1.45 Forced Inductions

[coker6365]

Josh had to break my arm, lol, but we're trying out Forced Inductions new 91mm s400 with a 100mm turbine wheel and 1.45ar housing. New setup will be an sxe 472/87/1.0 with the FI 491/100/1.45. Should pair very well for our goals. Can't wait to see how it does.

The 369/74/.91 ended up being too restrictive for us but had decent street manners with the s488.

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[Anthony@SunCoast]

Nice! cant wait to see how it performs on a duramax! what kind of fuel you gonna push it with?

 

[DAVe3283]

Should be a beast! Let us know how you like it, and how it spools. I'm very interested to know if it works as well as I think it should.

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[wilrob]

Don't lose an arm in that thing :rofl:

 

[coker6365]

Nice! cant wait to see how it performs on a duramax! what kind of fuel you gonna push it with?

Running 250% injectors from F1 with Exergy 10mm and Sportsman pumps. Should be plenty of fuel to test the air.

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[brokesmoker]

I have the FI s488/100/1.32 with an s472 with 250 overs I need to upgrade pumps, curious to see your numbers. Nice build btw too

 

[coker6365]

I have the FI s488/100/1.32 with an s472 with 250 overs I need to upgrade pumps, curious to see your numbers. Nice build btw too

472/87/1.0 sxe? How do you like it so far? We will be running non gated with a divided pedistal to help spool. We can always add a gate later if needed.

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[brokesmoker]

I like it so far I had rail pressure issues so far so don’t really know my potential honestl, I talked to FI and I got a billet 75 to put in place of the 72 so we’ll see how it goes.

 

[coker6365]

I like it so far I had rail pressure issues so far so don’t really know my potential honestl, I talked to FI and I got a billet 75 to put in place of the 72 so we’ll see how it goes.

Gated? And I am guessing that's an 87mm turbine on the 72. I don't see the 72 being a limiter with the 88, but I am sure the 75 will help a tad.

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[brokesmoker]

Non gated and yes 72/87/1.0 but after talking to the guy at FI he thought it might do better with the 75 so we’ll try it and see I’ll keep the 72 till o see how it goes

 

[coker6365]

Non gated and yes 72/87/1.0 but after talking to the guy at FI he thought it might do better with the 75 so we’ll try it and see I’ll keep the 72 till o see how it goes

Gotcha. Keep us posted. Nice build too!

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[brokesmoker]

You do the same man, thank you

 

[hondarider552]

How did this turbo end up doing?

 

[Bdsankey]

Sub'd

 

[coker6365]

Sorry guys, it's been a while since I have updated progress on this charger. The 472/87/1.0 paired with this 491/100/1.45 has performed well above our expectations. Spool up is not bad after swapping to a Goerend J converter. Drivability on the street is decent. Power is phenomenal.

In Denver on the ATS Mustang dyno, we made 1193hp/2314tq uncorrected and 1487hp/2885tq corrected running a 2500us tune paired with 52 and 88 jets for roughly 175hp worth of nitrous. The DA was around 8000ft if I remember correctly. Drive pressure logged was 1:1 until we were over 4200rpms. I would say this is about as good as we can hope for and we still have room to grow.

Fastest pass to date is a 10.19 @ 140mph on a 2000us tune fuel only. I believe we have a decent 9 in it once we turn the wick up and spray it down the track.

 

[coker6365]

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[Bdsankey]

I mean it even tows trailers! Have you thought about a path forward on blocks when the current LBZ block has had enough?

 

[coker6365]

Absolutely, LML block has been sitting and waiting for a celebrity shot. :hug:Not sure if we will half fill or not at this point. Consensus is to leave it alone and run it.

 

[Bdsankey]

Absolutely, LML block has been sitting and waiting for a celebrity shot. :hug:Not sure if we will half fill or not at this point. Consensus is to leave it alone and run it.

Do you know if anyone has done any testing with the GMPP block? https://www.gmperformancemotor.com/parts/12651877.html

 

[coker6365]

No clue, but I would assume it is an LML block or equivalent.

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