Innovate Motorsports Twin Screw Supercharger Kit for FR-S/BRZ

[Sportsguy83]

Originally Posted by silverlegacy

The turbos still have the torque dip... provided they have boost before ~4k RPM. The kits that don't have full boost before then don't have it because they are still building boost before the torque dip bottoms out.

P&L, Crawford, AVO, Accelerated Performance.... etc have no TQ Dip

[silverlegacy]

Originally Posted by Sportsguy83

P&L, Crawford, AVO, Accelerated Performance.... etc have no TQ Dip

Read the second part... they are still building boost at that point. AVO reaches peak torque around ~4k (read full boost) where the torque dip has already bottomed out. If you get full boost by ~3k there will always be a torque dip until it is figured out how to get rid of it.

[Sportsguy83]

Originally Posted by silverlegacy

Read the second part... they are still building boost at that point. AVO reaches peak torque around ~4k (read full boost) where the torque dip has already bottomed out. If you get full boost by ~3k there will always be a torque dip until it is figured out how to get rid of it.

Ok, you make good points and its true, but it is kind of "off" the point I'm trying to make. The TQ dip in between 3.5-4.5K is gone.


Going with your point (that they are still not full boost at those RPMs and that's why they don't show the TQ dip) then SC kits are also not full boost at those RPM's but still have the TQ dip.

[silverlegacy]

Originally Posted by Sportsguy83

Ok, you make good points and its true, but it is kind of "off" the point I'm trying to make. The TQ dip in between 3.5-4.5K is gone.


Going with your point (that they are still not full boost at those RPMs and that's why they don't show the TQ dip) then SC kits are also not full boost at those RPM's but still have the TQ dip.

Unknown with the twin screw, but I would bet it is close to full boost by 3k. Twin screws have a tendency to be at full boost or near it early in the RPM range. It is the nature of a positive displacement supercharger. Therefore it will show the natural tendency of the engine at that point.

The Vortech kit won't be any where near full boost until the top of the rev range. It will only make a few psi at most lower in the rev range. The rising in boost pressure during the torque dip isn't enough to overcome the dip itself. Notice the preliminary Vortech curve smooths out the dip, but doesn't eliminate it. If boost pressure was increasing at a faster rate (smaller pulley), you may see it eliminated. Hard to say at this point though.

With turbos it will depend a lot on the size of the turbo, but their boost curve will be nothing until a certain point and within 500-1000 RPMs there will be full boost. When this happens during the torque dip, the torque dip disappears because you go from 0-5+ psi in a short time, or if the turbo spools before the torque dip it will shot the same tendency as the twin screw.

The point is that the rising boost pressure masks the torque dip, it doesn't eliminate it.

[Sportsguy83]

Again great points, IMHO I prefer it masked while feeling boost is built up and at no point feeling the dip that still feeling it after installing a FI kit. YMMV

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[Ryephile]

Originally Posted by Pete

Here is a totally unrelated chart with some random numbers I made up from no input in particular.

:happy0180:

This is unfortunately more data than most companies accumulate during their "development" stage.

[swift996]

This is probably the kit I'm looking to acquire but how has this been testing since late summer and no dyno, installed pics, or commentary?

[nonicname]

Originally Posted by swift996

This is probably the kit I'm looking to acquire but how has this been testing since late summer and no dyno, installed pics, or commentary?

welcome to the world of tease and no updates.
to me this is part of customer service. if you start a thread like this it's because you'll keep periodic updates if not just do it until you have he freaking thing done.

[gmookher]

Originally Posted by nonicname

welcome to the world of tease and no updates.
to me this is part of customer service. if you start a thread like this it's because you'll keep periodic updates if not just do it until you have he freaking thing done.

seems to be the in thing to do do now a days, all the FI vendors are doing it!

[swift996]

Originally Posted by nonicname

welcome to the world of tease and no updates.
to me this is part of customer service. if you start a thread like this it's because you'll keep periodic updates if not just do it until you have he freaking thing done.

Makes me want to start a business in this space, there's certainly some companies still out of touch with the information age.

[Pete]

Originally Posted by mines13

...we have two dedicated company owned test cars, one domestically and the other over seas. These exclude the two employee owned vehicles which if the owners choose to take advantage, can run the the final version of either kit just prior to release.

Ever since the revelation about your torque numbers I have been extra interested in your kit. Earlier in the thread I said 200 TQ is what I am looking for, and it sounds like you delivered on that hope over a wide RPM range. If your baseline was 150 TQ on the nose, 33% more TQ will solve any power problems for me I think.

I'd love to hear what the S/C sounds like when you rev it, any chance for a vid of the test cars? The only one I've seen so far is the very brief bullet vid from a few months ago.

[brichard0625]

^x1 While im more interested in a dyno of course...Would be nice to get a teaser clip of what this bad boy sounds like.

[mines13]

Originally Posted by Pete

Ever since the revelation about your torque numbers I have been extra interested in your kit. Earlier in the thread I said 200 TQ is what I am looking for, and it sounds like you delivered on that hope over a wide RPM range. If your baseline was 150 TQ on the nose, 33% more TQ will solve any power problems for me I think.

I'd love to hear what the S/C sounds like when you rev it, any chance for a vid of the test cars? The only one I've seen so far is the very brief bullet vid from a few months ago.

Hey Pete! Yes, we have some things in the pipeline... That is all that can be said for now...

[Mechazawa]

Originally Posted by brichard0625

^x1 While im more interested in a dyno of course...Would be nice to get a teaser clip of what this bad boy sounds like.

+ one

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