How many 355 guys need one of these from Daniel??? The new GS355RDC52 :)

OK, Goth, I'll byte - what's the C for?

 

Andrew - I may be interested in one of these if the carriage isn't too excessive. Please feel free to PM me if it's worthwhile combining our orders somehow.

 

........... do you mean in the P# GS355RDC52 ? ........... RDC stands for Resonator Delete Cap .............. is that what you were asking ?

 

Is it available for the 1995 model year?

 

Good idea! We can probably ship 3-4 of them to Andrew for about $40 total shipping... maybe a bit less.

 

The 1995 355 does not have resonator to 'delete'. The 1995 intake system is fairly well designed as is .

 

Very keen, anyone else in UK interested?
I think I will do this anyway Daniel, I'm sure we can sell on the others as Christmas presents if nothing else!

 

Damn, I just ordered mine from Daniel and it's on it's way, perhaps the answer for the UK is to have Hill become a stockist

 

Got mine yesterday from Daniel. He don't mess around. Nice piece.

Geno

 

That would be the answer! although has yours been sent yet? if not lets add 2 more in the package Daniel!

 

... his already went out postal. Probably in the hands of some US bureaucrat now.

 

Andrew - just sent you a PM confirming my interest.

 

Payment sent for 4 whilst we are at it. So got a couple of spares, anyone else in UK want one with cheaper shipping?

 

Just installed mine tonight. Piece of cake. Took about 5 minutes. Really nice machined piece. Thank you.

 

Oh, I was thinking Research and Development Corporation... Thanks for the update!

 

Cool !! ......... I hope a few take advantage of the decreased shipping!!!

Awesome ......... as you have proven it is a straight 'retrofit' ............ !

lol .......... it does have a nice 'ring' to it !!

quick 355 newsflash: .................. something extraordinary has been designed and is currently in the 'material selection' stage ................

 

Ooooohhhhhh


*sits patently awaiting next instructions*

 

........ hint ........ some scuderia technology ............ in a 355 .....................

 

You tease us sir, until then here is a quick vid of the gothspeed plug. On a very cold and foggy day in the uk. http://www.youtube.com/watch?v=enOYZc5cC9Q

just ordered a few more from Daniel so got some left if anyone else in uk is interested. with Daniels discount now down to £27 each!

 

Awesome video Andrew !!!!! Your 355 looks/sounds great!!! ............. this resonator delete cap does nothing but good things and should be mandatory for all motronic 5.2 355's .............. ............................. Thank you for getting some shipped across the pond and making them available to other UK owners ........ !!!!

As for the new 'scud' style mods for the 355 .............. they will be fully realized around spring time ............. !!

.

 

Had this response on other forum over here, any views?

This thread is located at:
http://www.clubscuderia.co.uk/forum/showthread.php?t=34918&goto=newpost

Here is the message that has just been posted:
***************
i will all dissapoint you but the one who deletes the Resonator he is shooting up to 5 Bhp from his engine.
this little Box is Stupid and Ugly but ist doing a very importand work on the airintake. it protects the Maf from the hot Gases after the engine is shut down and helps the engine to work correct when the air is more than the engine needs.
you can ask also a good Ferrari mechaniker to explain to you whats the Function of that little box!!!!!

 

....................... sounds like something written by 'chicken little' ...........

To humor the unfounded concern(s) .... if it were to soak-up 'heat' as he said and keep it from the MAF...... the small 1" 'muffler' port would be located on top of the runner, as we all know .... heat rises.

2nd reason why it will not soak heat away from MAF ....... the box is located in the engine compartment and is 'uninsulated' and completely exposed to engine compartment heat, seeing as how it is a closed box, it can actually trap heat, because it does not see any air circulation. The MAF on the other hand sees a continuous flow of air through it ........ which begs ...... how could this little box 'cool' or protect the MAF from heat if it has no 'air flow' through it ..... to keep even itself cool? ......

Being a normally aspirated motor ...... it will not take more air than it 'needs' ............. the throttle bodies control the air to the motor, not this intake 'muffler' .........

The Ferrari factory clearly identifies this little box as a 'muffler'.

As a 'muffler' located on the intake, its purpose is to dampen intake noise.

 

Gentlemen,

I am no expert in air flow, resonance or aerodynamics, but I am only puzzled why would Ferrari engineers design such a box that has no technical merit ?

My basic undertanding is when air flow gets turbulant you will get a booming sound or resonance. In sound applications, a resonant frequency is a natural frequency of vibration.

If we all agree that this box is a "muffler" that eliminated the booming sound/resonance, this means it is eliminating air turbulance...hence better air flow stream and less turbulance/noise. ie: the MAF will get a more accurate reading from a smooth air flow than a turbulent one.

I fully agree with everyones air tightness, and nicer look.....but concerned about the negative effect of the booming sound on the MAF unit.

Anyone ?

 

Any comments on the above posts guys? Goth?

I have one of these caps waiting to be installed (car is away for the winter still at the moment). I'd originally thought that the cap sounds like a good idea (far better sealing etc than the plastic box and less potential for air metering issues) but having thought about the post by Candream above, I'm wondering whether he has a point concerning resonant frequencies and hence turbulence!?

 

The box DOES have 'technical merit' ..... it dampens noise . Intake valves opening/closing bounce the air and air going through imperfect paths (past throttle butterflys, valve stems/guides at varied RPMs) cause a variety of intake noises/pulses. Most of those air pulses are diffused and minimized in the large volume 355 intake plenum on each bank. Noise/sound on the other hand can and does travel best through homogeneous air of a constant pressure. Which is why we can speak and listen to each other best in a closed room. Turbulent air, is not the best medium for optimal sound transmission.

That said, the MAF under any circumstances does not measure or meter any noise, sounds, booms, resonances or vibrations. If it did the MAF would be unable to function on any engine. The MAF measures air mass thermally, by means of a hot wire that is cooled when air travels over it. The hot wire changes its electrical resistance when its temperature changes. Intake air disturbances/pulses (which happen through out the rev range on any MAF equiped car) were certainly taken into account and is one of the reasons this type of metering device is used.

Here are some pics of the GruppeM intake with the resonator deleted as well as the fabspeed hose kit with resonator deleted. I made the precision alloy billet version because I wanted to be certain of its capacity to seal without getting deformed under any pressure exerted on it by the factory v-clamp.
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