Posts by Bill from Hahn RaceCraft

Encouraging! Now seeing the payoff of all the investment in the Slingshot market. From R&D and production tooling to warranty disbursements a lot of capital has gone into getting it this far.

I know many have mixed feelings about their ceasing the Victory line, but it's a smart and courageous company which consolidates resources and focuses on its most profitable and stable brands. Like Slingshot, it's a move that while expensive in the short run, does provide a nice tax writeoff, and will ultimately also bring benefit at the bottom line.

Quote from Nemesis1701

Have i missed something here Bill $$$$?

Haha, no...I'm just being coy, that's all! I'm actually in the final stages of determining pricing. It's the age-old challenge of covering costs for development, production labor, all the expensive content (and there's a bit here!) and determining a reasonable margin...VERSUS what people can and will pay for it! A tricky balance, for sure.

To all: how much would YOU pay? I know, that's kind of silly to ask, especially until you've seen and/or heard more. In all seriousness, I welcome any input/feedback into pricing expectations and desires, as well as any data on competing products' features and pricing. To start the bidding - I seem to recall the Alpha side exhaust sold for $599?

Quote from FunCycle

Also I said I would let everyone know, the Alpha CAI pipe (elbow) has to be shortened to us with the Hahn Manifold. Sorry Bill, but everyone buy Bill's CAI and you will not have to modify.

Thanks, that's actually great news. I was hoping it would be that straightforward to integrate this intake manifold with the Alpha intake...but yes, as the CoolRam intake we offer as an option with the StreetRace manifold is pretty high-end, people can also consider it as an upgrade, and perhaps find a new home for their entire Alpha intake system.

Quote from lrobbi

Hi @supermoto292 Small modification to the intake pipe. I cut the pipe just before the "Bend" and cut it again after the bend so I would have one straight run. Placed them together using a 2.5" white coupler and purchase another slightly larger coupler for the throttle body area. 2.75" i believe or it was a 3"....can't remember. That's all I did. Used same Air Sensor and BOV. Came out great and no cracking or piling from the powdercoating of the intake pipe. Used some blue painters tape on the pipe and cut with a hack saw.Hope this helps.

Excellent that it's fairly straightforward, thanks for sharing!

Incidentally, the Throttle Body is best suited to a 2.75" hose, although a 3" can work well - they'll usually compress sufficiently under the clamp without any "puckering" or appearance issues, as it's only about a 10% different in diameter.

Quote from exharleyrider

Can a wide band O2 sensor be used on the SS or will the ECM only read narrow band Just wondering.

The ECM/PCM is calibrated to read a narrow-band sensor. An interesting feature of some aftermarket wide-band meters is their ability to emulate a narrow-band signal in addition to their wide-band output. This narrow-band signal can be used for the PCM in such instances, precluding the need to add a second sensor bung to the exhaust; only one sensor is needed in such cases.

Quote from BKL

IIRC, the factory O2 sensor is wideband. Here's a link to a short explanation of the differences between narrow and wideband O2 sensors - Why is a wideband o2 sensor better for tuning AFR than a narrowband o2 sensor? Isn't my 1/2/3/4/5 wire stock o2 sensor good enough? - DIYAutoTune.com

The factory sensor is indeed narrow-band, as are most on normally-aspirated engines. For the most part, narrowband sensors have the useful range of about 13.7 to 15.7:1 air-fuel ratio, which is why they are less than optimal for analyzing a boosted machine's ideal AFR, which at 12:1-ish lies below their effective range.

GM turbo engines like the LNF use wideband sensors stock, which is a wonderful thing for not only tuning, but inherent failsafe capability.

Thanks!

Quote from Ice9812

I'm looking forward to the side exhaust so I can replace the current one that is installed. I hope it's available sooner than later.

Thanks! At this point, we are about 30 days out from first deliveries. Design is done and validated, fixtures and documentation complete for production, have to lay in materials and off we go a-building

Folks, rain has descended upon Florida this weekend, and I fear it's postponed my desired videos. We are ready to go for clearer weather tomorrow, and will post up then!

Quote from soluga

Bill good to hear that you are always looking at enhancing/extending your product line. I wonder if you can share what the primary differences would be between this one and your current SidePipe Dual Exhaust system?

Thanks, we are enjoying these recent new product intros very much!

The SidePipes is a turbo-specific exhaust...and specific to Hahn SST TurboSystems at that. This new line is for...well, basically everyone else, whether they be normally aspirated or supercharged.

Quote from Ghost

Look closely! I believe I see a Slingshot in there somewhere.

Hmm. I don't concur, I didn't see "barn door" listed

Quote from StickerDick

October is only 9 months away?! wannaGOFAST | 1/2 Mile Racing Events October 20th through the 21st. We had three slingshots there last time.... how many can we get to show up this time? With a winner take all $500.00 cash prize and a special Trophy designed and built by Three's da Life? Maybe even T-shirts for all who participate? And who knows... Ride now of Ocala was a vendor there... Maybe Some of our other vendors might want to come along? @rabtech.... you might want to mull this over?

Sounds like a fabulous idea. Please count us in, including vendor presence. I'll contact wannagofast and get signed up. It's too damn close to not be there in full regalia this time....might even have to bring a fast bike and/or car to complete the Trifecta of wheeled vehicles we enjoy!

Quote from BKL

Thanks for the feedback. Never having driven a boosted motor before, I had no idea what AFRs should be other than having read that AFR numbers around 12-13 as being most desirable and that I should worry if I see lean numbers, but that info had little detail to it. Having only driven it about 5 miles so far, with only about 1/2 mile under boost towards the end of the ride, I'm still getting accustomed and learning what it does. I hope to get the body panels & hood back on in the next couple days and then I'll take her out again.

Here's a quick guide to AFR's:

Your Slingshot benefits from a closed-loop feedback system utilizing an exhaust oxygen sensor. This is operational when the engine is warm, at part-throttle (cruise) and, in some cases, also at idle. Under such conditions, the optimal AFR or "target" is 14.7:1. The system will "toggle" back and forth in a range of approximately 13.7 to 15.7 as it seeks the optimal fuel mixture.

Insofar as steady-state WOT (wide-open throttle) boosted operation, when we enter open-loop mode and the engine management ignores the O2 sensor - as mentioned here, the optimal range is 12:1. AFR's as rich as 11:1 under such conditions are suitable, but anything richer than this (such as into the 10's) will begin to erode power, and can lead to premature spark plug fouling from excessive fuel. At the typical boost levels we run (less than 10 PSI), anything in the mid-13's or higher under WOT is considered over-lean and cause for concern, unless it's only evident just at the beginning of such WOT operation (transition).

Under deceleration, the engine management is calibrated to cut nearly all fuel, so you may see 18:1 or higher. This is normal, and not cause for concern.

As to recording your AFR's under WOT, what kind of gauge have you utilized? Many offer some fashion of internal datalogging, so you may be able to extract that information for analysis after a power run.

Quote from MiM

Are you signed up for Texas, Bill?

No sir, but the evidence that we should be is certainly mounting!

Quote from varanog78

@Bill from Hahn RaceCraft did I read it correctly about MV installs? Are you looking to do turbo installs!

Yes...in terms of PortFueler EMS-equipped SST TurboSystems, as these don't require a PCM reflash, installs will be occurring. As to reflash-style installs, this will depend upon if Bob from OBD is attending, as he'd be able to reflash on-site. We should know more details very soon, and will begin a new thread(s) to discuss possibilities. Thanks for your interest!

Quote from iNewton

I will say this, 1) its sad I can't get my SS to Florida once I am done with building it.

Incidentally, there are speed competition venues and events popping up all over the country, as this style of racing is currently exploding in popularity. It's a very discussed subject among the racing organizations and event announcers I roll with, and we're all mighty impressed at the upswing in this sector of motorsports.

You may well have some opportunities in your region, so if you wannagofast, give it a look!

Quote from iNewton

I will say this, 1) its sad I can't get my SS to Florida once I am done with building it, and 2) any wars about power trains in a SS is ridiculous.

The limiting factor on top speed on the SS is aerodynamic, not HP. Basically the SS has the wind drag of a shovel, and at some point no amount of power will push the machine 1mpg more, so that "win" by 1mph is probably more to do with wind than hp.

Close the front end, close up the rear wheel area, lower the SS to a 2 or 3 inches off the ground, remove the splashguards, get a slanted windshield etc and the more powerful setup would have won.

You both just hit your Sling's terminal velocity, nothing to do with the block under the hood.

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While I'd like to offer that mega-powerful Slings are good for more than just pure top speed, you do make a valid point regarding aero. All along, I've humorously maintained that the Slingshot is about as aerodynamic as a Model T, and perhaps even less so!

That said...to be fair, just as Land Speed racing has different classes to accommodate both stock-bodied machines as well as partially-streamlined stockers, it's prudent to offer two different "records" to claim in our community on a similar basis. I'd offer that should one build a Sling for speed competition which includes aerodynamic aids of the nature you describe, it should have its own category, as it will possess a clear advantage.

We've been contacted by some Alpha owners who are not sure what to do regarding technical support going forward with their turbo and supercharger systems. The recent departure of Alpha from the Slingshot scene has created a gap in technical assistance which we'd like to help fill.

Should you have an Alpha turbo or supercharger system for Slingshot, and you need technical assistance, you may inquire with us. We're rather familiar with the product, and of course innately versed in the application of forced induction. As a helpful gesture to the Slingshot community, we're here for you. I consider it as giving back to the community that's given us so much.

Just use this link, which is also available at http://www.hahnracecraft.com via the Contact Us page.

As one might imagine, we will prioritize Hahn RaceCraft purchasers first, and then tend to Alpha needs. I add this merely to assure our Hahn RaceCraft customers that they remain #1 priority.

One other note: while we can assist in detail with forced induction, which is our area of authority, we aren't well-versed enough in general Alpha products to support them as completely. If you have an Alpha product other than their supercharging or turbocharging systems, feel free to inquire for support, but be advised that we may be limited in how much help we can provide directly. In cases where we are not as well-equipped to assist, we may help such inquirees find the info they need elsewhere. Today's online communications are a wonderful thing, and as our tendrils wrap deeply into enthusiasts and shops worldwide, we can help network the way to a solution.

Don't fret, Alpha folks...we got this!

Quote from garyw

What about heat? Will this set up produce more or less heat to the passenger area? I like the look of it and hopefully the sound. Will it provide any performance enhancement? A Maggie Valley install would also be awesome!

Thanks for the positivity! We've seen great results regarding heat control so far. The setup is very compact, and leaves considerable open space in the exhaust bay region for excellent cooling airflow. Performance enhancement is its raison d'etre (primary reason for being), but excellent sound runs a close second! Yes, we will be on board @ MV for installs

Quote from WraithSS

You got it Bill. No rush on the shipping as I'm in recovery and can't even think about touching the Slingshot for a couple weeks. You made a real winner with this one from the sounds of it. If you are getting such good reviews from @FunCycle and @lrobbi it must be gold.

Thanks! I'm so gratified to see the great field results and feedback. While this product is indeed new for Slingshot, it's an evolution of a concept we've been developing for years on other Ecotec-powered applications. We've continuously studied and refined the design over this time, and it's safe to say the Slingshot version is the most advanced version yet, incorporating everything we've accumulated along the way.

We're looking very forward to continuing to flex its muscles on all applications, be they turbocharged, supercharged or normally aspirated. To wit, after seeing 183 WHP results on an otherwise mild Sling (stock tune, stock exhaust manifold, just our exhaust and this StreetRace manifold paired with CoolRam intake system), we're very encouraged to continue on a n/a bent.

The goal is a 200+ WHP normally aspirated machine. I've already set a number of things in motion in preparation to crest that magic 200WHP mark, without power adders! Needless to say, the StreetRace intake manifold is a key component in that program.

Quote from lrobbi

Made the Engine just look BETTER... now to be honest I have not been able to keep the eninge clean this winter much But this intake truly added a difference in apperance.
I should had done a before and after shot....I know i have an old pic...but this shows the point I must add for those who have an Oil Cooler... this fit perfectly with the braided hoses next to it and slightly underneath - fitment of good leather glove!! NOW i just need to re-do my "off white" radiator hose -

Gorgeous! If I do say so myself, a wonderful addition to the underhood panorama.