Tell me witch one is the best SC (quality,reliable) PETIT or HYMEE.

 

Thats a really tuff question to answer considering that the Hymee is just now hitting the streets, and the Pettit has been out for 3-4yrs,, Of course with there being more PettitSCs on the road facts are gonna be in some cases a longevity of reliability along side with tales of failures,,,

 

you have the Pettit with a few dozen owners and Hymee with zero owners so far .
Not possible to answer that question with any accuracy .

 

^^ Not according to Rotarygod

 

/\ he is only going by his impression of what the kit will be like . Who knows if there will be major issues or not . It certainly looks to be a quality kit .

 

Not really possible to judge a product that isn't in use yet. The CNC work for Hymee's is clearly top notch, but its pricey (the issue with twin-screw SCs) and the intended power level is pretty low in my opinion. Pettit has been around a while and there are some good dynos out there. Then again, I'm a turbo guy so what do I know.

 

Near the end of the year I should have mine in, but until then, only Hymee and maybe one other person in aussieland has one..

 

Eh?

Should be able to match + beat Pettit no problem..

 

ill take pettit .... its more reputable

EDIT: when i say more reputable i meant more people have it and havent had issues etc im not talking hymee down but more ppl on here have petitt

 

^^ what?!
please elaborate on this.

 

I dunno. He did say it was "hands-down" the BEST FI system for the RX-8.

* Main Entry: rep·u·ta·ble
* Pronunciation: \ˈre-pyə-tə-bəl\
* Function: adjective

2 : employed widely or sanctioned by good writers

 

thank you thats what i mean its more widely used in this case

 

Well, what I was implying is that it is simply spoken about more vociferously, not that it possessed any greater merit.

 

Hymee's kit is definitely engineered far and away better than any other system out there for the RX-8 whether it be a supercharger or turbo. I don't need test results to tell me that. Quality work is obvious. He has also shared his work and the evolution of his product along the way which also shows the attention to detail that has gone into it. It's already better engineered than everything else yet he keeps improving it! That's just awesome. I can't think of anyone else doing that. It's typically, get something built, and make some money off of it. When users state problems, then we'll either fix it or place blame back on them saying it was their fault. Not with Hymee!

So there is really nothing to be afraid of with the fabrication or quality of his work. NASA would be proud to use it. That brings it down to 2 other things. One is the supercharger itself. It appears sized well based on his numbers so that's not an issue. The other would be reliability of the unit. I've never heard of one failing. It's pretty much a foregone conclusion that it will inherently be more reliable than a turbo as it doesn't get as hot and doesn't spin up nearly as fast. Turbos have to survive in very harsh environments. This isn't to say that they are all going to just die quickly with no reliability. Not saying that at all. The supercharger should just last even longer so that shouldn't be a problem.

The only other thing that really leaves us with is tuning. Tuning is always suspect. I don't care who tuned it. It's always something to worry about and each one will need to be dialed in by the owner. That's their ultimate responsibility.

I know a good product when I see it. Fortunately this one doesn't have a single part anywhere that says Greddy! He's gotten alot of use from it and it's been tested for a long time. The supercharger itself is also a proven performer and a reliable one. I don't see what the problem is. Yes this truly is hands down the best FI system for the RX-8.

Yes it is pricey. It's not hard to see why. You could easily get a more cost effective alternative but it just won't hold a candle to how well designed, built, and engineered this one is. It's not the typical pick a turbo from a compressor map and slap it on a manifold story that lots of others are. That's easy. Damn near anyone with more than an hour reading a book about turbos can do that! This is hard but the results are well worth it. It's also just plain beautiful!

 

Spurious and unsupported claim. This assessment is based on pictures?

That's just pathetic.

Haven't been listening much, then. Ever visit the Ford forums or the Miata forums? It is an excellent piece of engineering, but its failure rate is on par with any such device.

Spurious and unsupported claim. What environment is a turbo designed to survive in? Apples to oranges.

And your qualifications for being a judge in the Miss USA Pageant would be?

That's quite an endorsement. lol

He has? Where?

That is just an amazingly dangerous assertion. I'm certain Mark is grateful for such a glowing endorsement, but you are pretty much calling the Slap-Chop the greatest culinary advancement in the history of food preparation because Vince uses only the best onions and tuna in his non-boring salad.

Now, had you said "Yes, this truly is hands down the best looking FI system packaging for the RX-8", then you might not sound so foolish.

 

 

Can i have some?

 

These threads are awesome, is that buttered? pass some over here,,,

 

[QUOTE=MazdaManiac;3203201]Spurious and unsupported claim. This assessment is based on pictures?[/quote[

Rather sure he's seen it a few times in person, though probably not the final product, which can admittedly vary quite a bit from the development stage.

I dont think he was completely dismissing results from actual use, but you can definitely make rather accurate predictions about anything, given enough data.

I dont know exact details, but I do believe that hymee has been running the system on his car for a while. Again, this was probably in various forms before the final production model.

I'm sure rotarygod will reply and his reply will be better since it will explain exactly what he was thinking, but I think I understand where he is coming from. I dont know that this system can be called better quite yet, but it does look promising and appears like it could be a very good choice. As with anything, results will ultimately be the final verdict, but you can always make predictions.

 

He would have seen it exactly the same number of times that anyone would have if they went to SevenStock in 2007. Once.


And pictures = data?

Precisely.
Prognostication = fail.
Sports, meteorology, climatology and male-enhancement. Go for it.

Don't get me wrong - it is very likely that this will be the BEST supercharger system available for the RX-8 (in a field of THREE that actually exist).
I am more than satisfied by Mark's attention to detail and engineering prowess. He will NOT produce a dud or something that requires constant modification to function properly (if that is even possible in this arena).

But such a broad endorsement as that offered by Fred is irresponsible on every level - especially sight-unseen.

 

I love this.

 

UUUHHHH, HYMEE is ok...... I don't think they are that much better than others. Are there any actual comparisons between their FI kit to others for the 8 yet?

 

My concern is for some of the manufactured drive gear parts . They look awsome and i'm sure he has tested the components on at least ONE test mule .
When he ships ten kits out and every one is installed slightly differently and all are operated under different conditions ,they should be fine, but there is plenty of scope for issues .

 

Probably won't be any conclusion to this lol...
FI kits can be funny sometimes

 

Since many on here are "Show me a dyno or it didn't happen.."

RX-8 SCEngineDyno.pdf

Do I have one yet, no. But like many, I have watched the progression of this project for the roughly 5 years he has dedicated to it. Personally, a supercharger that only produces boost (360hp/241 lbs-ft) under load, but returns to stock on idle/cruise does sound like the perfect setup for me.

Hymee has produced data and shared many, many things along the way. I don't recall Pettit doing the same, though their take on the Turbo vs. Supercharger is an interesting read.

Why not take a look what a fellow club member thought after driving it?