F21 kit's new low price!

[SoloMotorsports]

Check out our F21 kits with a new lower price!

Get into a set of mixed flow f21's starting @ $2149. This kit includes injectors and tuning to get you up and running quickly.
We also have options for all kinds of power adding goodies you can get right away or add later on if you like.

We put our stock motor F21mixed flow car on e85. Keeping the tq low and letting the f21's do the work up top, we were able to get some amazing results.
Dyno sheet shows gains over Borg Warner K04's on similar setup with e85 on stock motor.
F21's shown in Red
K04's shown in Green

[bobkatkat]

Wow that is a great deal!

[Doug@FrankenTurbo]

Thumbs up for a great tuning partner and dealer.

[Audimilo]

what size injectors do you run with your E85 tuning? the 750s? would 550's be maxed badly?

[SilverBulletS5]

Shoot me a PM with this package + installation at your shop.

[SoloMotorsports]

what size injectors do you run with your E85 tuning? the 750s? would 550's be maxed badly?

Yes we run 750's for e85 tuning with F21's.
you can get away with a little less boost on the 550's if you already had them and didn't want to upgrade, but we normally go the 750cc route.

[SoloMotorsports]

Shoot me a PM with this package + installation at your shop.

you have p.m.

[TheDarkness]

awesome setup, even better custom tuning by SoloMotorsports! I'm lovin' it

[Audimilo]

Yes we run 750's for e85 tuning with F21's.
you can get away with a little less boost on the 550's if you already had them and didn't want to upgrade, but we normally go the 750cc route.

alright so lets say you did this setup, but stuck with the 550's and a little less boost to get away with it ... what boost levels would you cap the car at, and what kind of wheel hp would you estimate?

(basically considering just going E85 on my current setup with some of your tuning... thanks)

[s4chiro]

was wondering the same thing since i have 55# injectors and wanna run e85 on k04s

[Doug@FrankenTurbo]

For those of you who might like a refresher on what these turbos are all about, here's a re-post of information we put into this thread.

Well, one thing is for sure: I'm not going to be accused of being a marketing genius anytime soon. You see, after performing tests on the MixedFlow turbochargers on the 2.7T over the winter, we simply started shipping them. Quietly. No fanfare at all. Same price, same power claims. But now that Flyboy has forced the MixedFlows out of the closet, here are some initial photos to illustrate the two key changes: a larger, state-of-the-art mixed flow turbine rotor combined with a 7075-series billet compressor wheel. The compressor is also larger.

Pix:










And there is another, equally important change. Starting with the introduction of the MixedFlow designs we have moved to USA-based production for final balancing and assembly. Why do that? Because the MixedFlow turbos are designed to be pushed very hard, to extremely high rotational speeds. And the industry-standard 0.5 grams of imbalance our overseas suppliers can do simply is no longer enough. So now, our tolerances are even narrower. More strict than OEM. Every one of our turbos is "TripleBalanced". First the individual wheels are balanced at their manufacturers. Then the parts are assembled into complete CHRAs and run through our manufacturers' VSR machines. The speed sweep performed is from 0rpms up to 200,000. This gets the assemblies down to the balance we've used for years. But now, every cartridge we receive here is completely broken down and balanced a third time on a manual vibration sorting rig in the USA. The final vibration tolerance is under 0.2 grams at 30,000rpms. This is exceedingly fine balancing. You will not find any high-performance turbo manufacturer who does better. A couple pix of our handsomely appointed workstation for the balancing rig:






All of this is happening with no increase in price or reduction of our warranty coverage. It remains at two years.

I'm guessing folks are curious to know what the new designs bring to the party performance-wise. I can post some logs shortly.

Thanks

Doug Harper
FrankenTurbo

[SoloMotorsports]

alright so lets say you did this setup, but stuck with the 550's and a little less boost to get away with it ... what boost levels would you cap the car at, and what kind of wheel hp would you estimate?

(basically considering just going E85 on my current setup with some of your tuning... thanks)

was wondering the same thing since i have 55# injectors and wanna run e85 on k04s

We can get away with about 430whp on our mustang running e85 on 550cc injectors running 5 bar fpr @20psi . Probably about 400whp on around 18 on 4 bar fpr. Of course these numbers really depend on which supporting mods you have.
I've done quite a few of these setups in the past on 550cc injectors and they make decent power but you'll wish you did the 750's.

[SoloMotorsports]

Don't be a grinch... take that Christmas money and turn it into Joy with some F21's.

[vavJETTAw36]

Very interested in the stage 3+.

What mods do I need to run this kit? Car is stage 1 apr tuned. No other mods.



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[Kruat]

What if we dont wanna run E85? Im not sure if I can get it in my area.

[Doug@FrankenTurbo]

What if we dont wanna run E85? Im not sure if I can get it in my area.

I'd say you could run gasoline then, just like the majority of S4s that have 21s tuned by Solo. Contact Josh there for more information.

[SoloMotorsports]

Very interested in the stage 3+.

What mods do I need to run this kit? Car is stage 1 apr tuned. No other mods.



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The stage 3f setup can be bolted on with no other modifications as a great daily driver.

If you went the Stage 3 route with the injectors and upgraded maf, we do have a 19-20 psi file designed to work on an otherwise stock car.

If you want to keep the budget in check either of these two options are a good place to start and slowly upgrade the rest down the road.
Depending on your clutch situation you may want to save on labor time and do a clutch when the motor is out for turbos.
Some things you will need for maximum performance include.
-Upgraded clutch
-Upgraded intercoolers (I suggest SRM's)
-Upgraded fuel pump (walbro 450 or bosh 044)
-Downpipes/exhaust
-Upgraded diverters (710n's are perfect)

[SoloMotorsports]

What if we dont wanna run E85? Im not sure if I can get it in my area.

I'd say you could run gasoline then, just like the majority of S4s that have 21s tuned by Solo. Contact Josh there for more information.

Absolutely, we can set you up to run whichever fuel suits your needs. We have done a large amount of these kits on pump gas only.

[jpurre]

The stage 3f setup can be bolted on with no other modifications as a great daily driver.

If you went the Stage 3 route with the injectors and upgraded maf, we do have a 19-20 psi file designed to work on an otherwise stock car.

If you want to keep the budget in check either of these two options are a good place to start and slowly upgrade the rest down the road.
Depending on your clutch situation you may want to save on labor time and do a clutch when the motor is out for turbos.
Some things you will need for maximum performance include.
-Upgraded clutch
-Upgraded intercoolers (I suggest SRM's)
-Upgraded fuel pump (walbro 450 or bosh 044)
-Downpipes/exhaust
-Upgraded diverters (710n's are perfect)

I've been running the 3F file for 2 years now. It is a great tune for me as I have a Tip car and it doesn't crush my torque converter, but makes for a great drive! Highly recommend for those with similar application.

[ajee622]

Can you pm me cost for f21 with install?? I see you are in ga. I'm in Charlotte. Might be worth the drive.


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[Kruat]

Absolutely, we can set you up to run whichever fuel suits your needs. We have done a large amount of these kits on pump gas only.

Should have better worded my question, I meant power levels for pump gas vs e85.

[slow ride]

What is usually expected for pump gas (say 91-92 octane) numbers without meth on the k04 vs the f21? In the above example the f21 performed better on e85 than the k04, but having the boost trace of both dyno plots would be great. Any reason not to push the k04 more or was it running out at that point? Just trying to wrap my head around just how much better the top end of the f21 is over the k04 on either pump or e85. From the dyno we can see the f21 has slightly more lag, so how much more better up top is it?

[SoloMotorsports]

What if we dont wanna run E85? Im not sure if I can get it in my area.

Should have better worded my question, I meant power levels for pump gas vs e85.

Typically we see about 360 to 375whp on pump gas on a k04 setup. With the mixed flow F21's we are seeing 380-390whp. This is limited by iat rise on the f21's. If we start adding meth into the mix it gets a lot more interesting.

What is usually expected for pump gas (say 91-92 octane) numbers without meth on the k04 vs the f21? In the above example the f21 performed better on e85 than the k04, but having the boost trace of both dyno plots would be great. Any reason not to push the k04 more or was it running out at that point? Just trying to wrap my head around just how much better the top end of the f21 is over the k04 on either pump or e85. From the dyno we can see the f21 has slightly more lag, so how much more better up top is it?

Here is a boost plot for the f21 car using the stock map sensor. The k04 car was running very close to the same boost profile, just about 1psi less up top. I don't have the logs handy as they are on an old computer. Both turbos could have been pushed harder, especially in the mid range, but due to the fact that they are stock motor cars the boost was kept in check.

[Doug@FrankenTurbo]

I've been running the 3F file for 2 years now. It is a great tune for me as I have a Tip car and it doesn't crush my torque converter, but makes for a great drive! Highly recommend for those with similar application.

I am a real fan of the "Stage 3F" file developed by Solo. Calibrated for those who want to avoid the upgrade expenses for intercooling & exhaust, it makes great use of the excellent Bosch 550cc injectors and our turbos.

[Doug@FrankenTurbo]

Typically we see about 360 to 375whp on pump gas on a k04 setup. With the mixed flow F21's we are seeing 380-390whp. This is limited by iat rise on the f21's.

The ~28psi capability of these turbos is wasted on a setup that can't properly cool the heated charged air. That kind of boost generates a huge amount of heat in the compressed airmass. For those serious about big top-end power, you need very good intercoolers. And WMI is a really good idea as well.