For those who are clearly not that familiar with what EGRs do and what cylinder heads actually look like...

Many EGRs are only recirculating a small fraction of one exhaust runner of one cylinder on each bank.

It is for emissions and not particularly effective in most cases.

A big lopey cam can create more reversion or greater "natural EGR" than an actual EGR valve. The outlines on this block-off plate from a 2.0L are the diameter of the EGR passageway through the head and intake mani where the valve separates them.

Also, the only time the EGR is moving an inert gas is in the perfect world where everything is burned. And last I checked the gasses coming out of the cylinder are hotter than the air going in, so that doesn't really help a whole hell of a lot in terms of power production.

As 555 pointed out, they do not even use them in many regions.

You can still pass your NOx emissions without them.

BTW.. over 70% of the atmosphere our engines breathe in is INERT nitrogen on the way in, but at the temperatures and pressures experienced in the combustion chamber we still get NO, NO2, NO3 & N2O4 etc.. this is not high school chemistry.

 

Meh, not that far off from it though.

Simply speaking, the excess N2 reacts with unreacted O2 during/after combustion. I forgot to mention that a lower combustion temperature also helps reduce the rate of this reaction.

However, you will be hard-pressed to find NO3.

Anyway I kind of agree with what you're saying about the EGR. With a good enough cat conv design, it would make more sense overall to give that cylinder volume to actual air, and engineer the exhaust tubing to reduce exhaust temperatures at the cat.

 

I think we are all on the same page now.

 

So..... Is this supercharger available.... HAAHAHAHAHAHAHAH!!!!

 

This supercharger has been available for a long time now. A USDM plug and play kit....no. If you read the last several pages of discussion, the Sprintex SC could easily be modified.

 

I was being sarcastic, hence the laughter if YOU read the last few pages you will read that I have been talking to sprintex for a hardware only kit, and I already know what needs to be modified to make this kit work

 

How is this moving along? Is Spintex working with you directly, or did they point you towards Boostec to purchase the SC and/or other hardware?

After my conversation with Rick at Boostec a while back I kind of lost interest. I'm bummed that Sprintex has come off as seeming scared of the U.S. emissions regulations (can't convince me that they can't get around the USDM EGR Valve issue).

Anyway, do you have a feel for whether or not the FitFreak community can develop a common solution for the EGR issue if a Sprintex SC kit (like they already produce for China) is ever released for sale in the US? I'm out of warranty now on most things, so I'm not concerned with "what the dealer might say" if I move on this in the future. Besides the options I have with a couple of local shops, the Service Manager at my dealer offered some help if the Spintex SC kit ever becomes a reality (for a nominal fee, of course).

 

I spoke to sprintex directly and they were going to give me the kit for $2700. The EGR needs to be deleted and you need to be able to tune for a 5th injector. Unfortunately I realize what I'm doing for a living is crap, and am going to further my education so I cannot afford one and stopped talking to sprintex. I lied and told them that my car would be used for offroad use only because I would be deleting the EGR, and they wouldn't sell me one otherwise. An AEM FIC can program the S/C and I was thinking about making a male resistor to plug into the EGR sensor to get rid of the CEL. I definetly am still slowing getting this build ready just at snail speed right now. For the average FF'er I don't think a kit can be made with a piggyback module as there might come a time where the tune I made won't necessarily be good for someone in texas so they will have to learn how to tune to get this kit going.

Hope I answered everything

 

Thanks for the update. Your comments validated the vibe I was getting from Rimmer. Based on that conversation and your feedback, it sounds like the EGR delete or EGR workaround issue is something Sprintex has no interest in tackling. So unless something changes, we're on our own because a USDM kit is not in the works for all practical purposes (contrary to comments in press releases from ranking people at Sprintex). Rimmer implied that working directly with Boostec would be an option since they already stock the same SC for Harley's, and they're used to helping people make the one-off mods.

What I'm considering is this... buying a used Fit as a hobby car instead of using my daily driver as a guinea pig. Then I can swap the upgrades I have already purchased over to the hobby car, and put my DD back to stock in case I decide to sell it or whatever. I just don't want to get this car too far down the upgrade road to where I can't sell it, and I'm still not sure I want to do too much more with an AT platform. I think if I did get to the point of seriously considering a SC or TC, I would want a MT platform to build on. No reason, just a preference I guess.

 

Sounds like a plan, the EGR has to be removed though because there is a plate on the manifold they give you where our EGR's are. So the manifold will not fit with the EGR sill there..... Who is Rimmer if you dont mind me asking? Other than that sounds like you have a solid build on your hand if you tackle it I have your back!

 

Rick Rimmer at Boostec, Inc. - I talked to him a while back when this thread was new and we were trying to assess interest, maybe for a group buy if possible. The forum was all geeked up over the kit Sprintex is selling in China, but it kinda fizzled as the reality of the situation set in. After that phone call I sent him engine pics, diagrams, schematics, and some other related links (per his request) thinking we were going to discuss what needed to be done for the USDM Fit. My non-existent follow-up posts will tell you where that went. Anyway, I posted the relevant info from that conversation here: https://www.fitfreak.net/forums/2nd-...tml#post976261

Don't get the impression I'm pro/con about dealing with Boostec. I did a little research on my own and didn't find much beyond assumptions. I did find this little nugget, though... check out the last post in this thread on a 4x4 forum...
new Boostec Supercharger review - Colorado4x4.org Forums

 

I found this on youtube about a prototype SC for US Fits to be released in 2012 . Is there any truth to this video Sprintex Honda Fit Supercharger 2 - YouTube
I hope it is true for our GE8 's . I also found this on Sprintex website http://www.sprintex.com.au/sprintex/2011/10/sema-2011/

 

I'll believe it when I see it. That is, after all the follow-up that has been done by members of this forum, there has still been nothing offered for sale by Sprintex and/or Boostec (their US distributor) to date. When someone can point me to something more than "feeler talk" - trying to assess interest in a product - I will pay attention. So far, I've yet to see an advertisement, kit, price, method to purchase, ANYTHING - from Sprintex about buying a S/C kit for a GD3 or GE8 USDM Fit.

 

LMAO at 25 whp for $3500....no thanks.

 

I have a cousin in Australia... so if I really wanted, I could have him buy one and ship it over (if I can't buy directly from the US).

Despite the fact that I have little to no experience in this and therefore have no business to be putzing around with FI, I just have this urge to get one (going to go broke if I do).

The only thing stopping me (aside from $$$) is this whole EGR thing... if I were more inclined to doing it, I might just block off the EGR as DSM suggests. Hum... do the Jazzes in Germany have EGR? I know they have the steering on the left (i know because they have climate controls that we might be able to refit into our Fits). I ask because, if the engine is basically the same, but doesn't include EGR, does it mean, they have an exhaust header in place of the EGR? We then might be able to flat out import their parts. Hum... disregard... for now.

you're right in... that is a lot of money for a little bit of increase... however, that being said... there are plenty of people willing to do it, I'm sure. It's more of the matter of... will it be profitable enough for them to ACTUALLY provide it. Oh, and I think they've since changed their price from $3500 when it was reported in 2010, to $2500 as per this pdf released in Oct 2011. *still alot*

There's also this, an install pdf (that appears to have been drafted in May), that includes fuel recommendations for... US Fits.

 

Want a good laugh? Go check out the comments under the YouTube video.

I guess my well-developed opinion in this thread REALLY got under the skin of some crybaby at Sprintex. Then again, it could be somebody at Boostec, but I doubt that since they are the US distributor and probably would be smart enough NOT to piss off their potential USDM Fit customers (if there are any left after our "exchange"). Not sure because he's only identified as "ImprezaRSC" on the YouTube video.

Anyway, when I called BS, he attempts to put me in my place by saying "Do me a favor and tell ALL of your friends we don't tolerate this shit. I can refuse service to anyone, including you. There is no moderator here to wipe your tears. I sure do dare to dream AND speak my mind, too." Gee, I guess he told me! You know, refusing to sell me something I'm not going to waste my money on and all...

I guess this Aussie knucklehead doesn't know much about marketing, since weak threats like that (for an overpriced, weak product) aren't going to win Sprintex any fans in this forum.

Seriously, go take a look for yourself (can't stop laughing)

 

Well since no other companies have stepped up to the plate to make a S/C or turbo for GE8's I will be buying this when released . I know 25 WHP sounds low but you don't need an intercooler and your intake parts will fit . I don't know everything about this but can you upgrade S/C like kraftworks to high boost ? So once released maybe they come out with upgrade for it . Oh they did mention like 53 hp gain but does that translate into 25 WHP ? Well thats a couple noob questions hehe

 

Well, I saw the youtube video... and if I were to base my opinion solely on that... it wouldn't be a good one. ImprezaRSC appears more of a fanboy than an employee. That being said, I'm not getting into the "discussion" between Jim and him.

Looking back at the older thread (https://www.fitfreak.net/forums/2nd-...arger-kit.html), it looks like the JDM has the same intake piping as the USDM, with the only difference being, that the spot where the EGR sits, is closed off. Look at TheEvilOne's post, to the left of the intake piping (four pipes). In the USDM pic, there's a "black tower" part, but just a plate in the JDM pic. Google EGR valve and that tower is what you get. If you look at the install PDF (in my previous post), you will actually see the tower in the diagram at the bottom of page 19.

So from the looks of it, the Sprintex intake manifold does either integrate it or bypasses it... either way, it deals with it.

Using Ultragauge, I put the EGR % flow as one of the displays... and found that the EGR only flows when the car is accelerating. I can REV the engine all day long at stop (neutral) or coast/decelerate without the EGR flowing.

 

I talked to Rick from Boostec today and he said they will be selling this Sprintex SuperCharger for the GE8's this year . They have a Fit in Detroit running the S/C and the fixed the EGR problem . I can't wait to buy this !

 

Most of us, including myself are at the point where it's "we'll believe it when we see it."