Hi, and thanks for sharing us.
This is a new design from us, based on our old standard nylon injection molded kit. I see a bit of critique, and honestly - I don't mind it. I do like to see what peoples opinions and ideas about my stuff is like, outside of the Facebook page.
The design is really poor. Airflow might be ideal for cylinder 3 and 4 but the rest?
Also, why the fuck would you need two separate air boxes? There is no room to run two outlets to two intercoolers(or one but designed for two inputs and outputs) and then up.
Those nylon airboxes are not well designed imo. I would prefer big ass trumpets off the ITBs and then build a CF box around those.
Also it look like you lose DBW and thus this would only be for someone with a standalone.
Unless there are significant gains, looks like a waste of money and over complicates EVERYTHING.
Though I don't want to put aside anyone's knowledge or skills, turbocharged vehicles don't benefit from a plenum period - but unfortunately need one. Our M4 S55 uses a plenum design very near to this one, we have found the split plenum 170% more efficient then the single. Being a dedicated race car, we have had time and money to make alterations to intake plumbing to make it work with a twin turbo / dual plenum setup. We also use a water methanol injection (WMI) kit for cooling, as it is a hillclimb car and weight saving is vital. We have found WMI to be as efficient as a standard intercooler setup. We do race and street performance, we don't expect our customers to be looking for simple "plug and play" options. However, we design with simplicity in mind, and to aim to make these modifications a lot easier to work with. That said, I do appreciate this feedback - I will include a single feed airbox at no extra cost as an option by Friday. Unfortunately, CF airboxes are prone to leaks, and if you enjoy chasing intake leaks with a turbo application - Jenvey is the company for you.
LOL. It would be a lot of work for sure. It would essentially be a very short runner, and super tiny plenum intake manifold I guess? Performance would probably be marginal or non-existent. Also the pricing on the website has already changed in the 4 hours since I've posted this, that or the website is glitchy lol - it's 3299 AUD now.
If someone really wanted to, they could probably keep the drive by wire by modifying the TB to act as an actuator and relocate it outside of the intake tract - like this guy did on his coyote.
This guy get's it. That is the bracket we have been working on for this setup. Haven't included it in the pictures but all linkage is included in the purchase, including a bracket to hide your ugly ass DBW
. Science behind runner length: Short = faster throttle response, idle to redline quicker, more HP then torque gains. Long runner = more torque gains then HP, slower throttle response, slower idle to redline. So yes, we have found a happy place for our runner length. Again, plenum is useless for turbocharged vehicles as they need no atmosphere (they make their own). This is an ITB system, the plenum is basically an Airbox to get the air into the throttle bodies from the forced induction. Science behind that is - smaller the better. Traditional ITB systems like the Coyote pictured are a lot of work to tune, my ITB system is so much less hassle, as your tuner nolonger needs to make 6,000 adjustments to each body to get it to idle.
Also I listed this on the Shopify at 3am after finishing off a Ford 351 package and did hit a 4 instead of 3, and didn't even realise until someone mentioned it on the Facebook page. 4 hours may have been a bit too long.... But, amateur mistake I know.
I also have Testing incentives if people want to contact me before purchasing anything, for this particular kit, it is 10% off and you get 2 different dual airboxes (and I might throw in the single airbox I will have ready by Friday), feedback required kind of deal - also installation pictures and before and after shots. With this manifold, I require your DBW module before to ensure it is going to fit. Nothing worse then a week on a CNC to have something not work properly.
Lastly, yes these are all drafted images on the website. They are "real products". Just not all of them are made, my workshop is only 102sqm, I make manifolds to order, including custom jobs. Eventually the standard listings I have will be updated to product photos, when Haas make a machine that is fully Automated (and affordable).
I hope this clears a little bit up, and again, thanks for the input - I will have a single feed airbox designed for you guys who obviously don't want to do too heavy modifications, by the end of week
One last thing:
On a side note they also make a turbo upgrade for the S55.
Not ours, this is like one of 4 things that is not made in house lol. Really good numbers from the manufacturer, great dyno results (up to 930hp) with a lot of other work done. And just to answer your actual question, turbocharged vehicles benefit greatly from ITB setups, AE/PE of the turbo is improved dramatically.
