RZRX7TT

hey guys i am debating weather to spend my 500 dollars on either getting all my vacuum hoses changed to silicon or lowering the car. I have 55,000k miles on my second engine now and according to the mechanic he says that i shouldnt do the full silicone hose job yet but to wait when i need a rebuild because it be worth while doing because the engine will be apart anyway, now i was wondering why i would have to wait for a rebuilt do get this kind of work done, i mean whats the difference if i get the silicon hose job done now or if i am getting the motor rebuilt? i mean if i get it done now those hoses wont be touched when a rebuild needs to be done because all that gets touched are the rotors, so you think he has a good point and wait if i need a rebuilt which i say wont ever be needed atleast till 200,000 k the way i look after it or should i spend the 500 dollars and get it done? the other option i have is to get the car lowered, what you guys think? i need your guys help here to get me to decide, what should i do!

puma

iTrader: (2)

500? why don't you do it yourself? it is an excellent way of learning how your car works.

otherwise, don,t do it until you get boost problem i guess.

i personnally do everything on my car so it is far from costing me 500 so i guess my point of view is kind of useless...

turborotarypower

get the vacuum hoses done!

j9fd3s

iTrader: (3)

you should leave it alone unless you need to fix it. dont lower the car either

mike

RonKMiller

ErnieT

iTrader: (2)

Go to KDR and have them do it for $400.....well worth it.

Mr. Stock

If you are having no trouble with the sequential operation of the turbos, don't do it. You will save money by not doing it.

When you rebuild the engine, the hoses have to disconnected. This is a very good time to do the hose replacement.

Your mechanic's advice is a good one.

BrianK

agreed... no reason to fix those unless there's a problem. It'd be like replacing your tires with the same type of tires before they needed to be replaced - there's no advantage to doing it whatsoever.

get yourself some nice lowering springs & a boost gauge (if you don't already have one).

edit: ...and the reason he says it would be better to wait for a rebuild is that the engine is apart and out of the car - easier to get to all of the hoses (UIM is off, turbos aren't right next to the fender, plumbing removed for the most part, etc)

Fd3BOOST

iTrader: (7)

no no no,

Do the job and do it now.
The hose will run you about $30 or so.
You can get it through www.hosetechniques.com
The job is not hard. check www.iluvmyrx7.com and download a workshop manual.
Then check robinettes site and lightning and a world of thunder.
Both have detailed instructions on how to do the job.
It's about a 5 hour job for the fist time.
Fairly simple as long as you pay attention and take your time.
PM if you need you decide to do it yourself.

BTW your engine won't live to 200k.

RX7 8U

iTrader: (1)

Agree with BrianK but I don't think silicon is better than rubber. Silicon breaks apart after it breaks down from heat cycling. Use a good rubber or Viton is best but if it isn't broke now don't fix it. You could end up doing the job. putting it all back together and find out you screwed up and have to take the upper intake off again to fix it. Best to wait until you have to do it or engine is out.

RonKMiller

100%. Absolutely. Positively. Get dirty. Buy hose.

Don't worry, be happy. DIY damnit!!! It's not rocket science and you will have a MAJOR warm fuzzy feeling after you've done it.......OR.........you will curse the day you ever bought your FD3S.

BE A MAN.

(I must be a wussy though, it took me a WEEK, but then again it required a 6 pack every night!)

Mr. Stock

This is true. However, it's not too difficult to break solenoids in the process. Then it will cost a lot more.

RonKMiller

Nothing personal, 'cause I am sure you are a nice guy, but:

ESPECIALLY on the silcone advice!

Mr. Stock

From the data I have reviewed:
Viton better than silicone which is better than rubber

RX7 8U

iTrader: (1)

yeah no b.s. viton is better and thats why it costs a lot more too. get off your trike and do your homework ronkmiller.

RonKMiller

No doubt, if you are keeping your car for 50 years.

But 4X the cost? Not for me. Good quality silicone will last 10 years easily - and not the JUNK from Hose Techniques. Garbage with a capital "G".

Viton is awesome and absolutely the best, but total overkill for a car, - ANY car.

Buna N - "nitrile" is pretty good to begin with, but it cannot handle the heat, and that's where all the problems began...if it wasn't for that damn pre-cat.
If you stay clear of direct oil contact silicone is still the best choice.

RonKMiller

It's not a trike, I have graduated to training wheels!
(Wanna race?)

I've done my homework. That's why I am trying to help you out. About 25 years ago.
I Graduated Summa *** ******* Fast.

I realize it's difficult to to more superior knowledge, but if you don't believe me I can show you the way - and it is righteous, my friend:

www.McMasterCarr.com. Start reading. You'll be amazed.... a great place to buy all kinds of **** you've never heard about!

.

RX7 8U

iTrader: (1)

Gee I struck a nerve. yeah I've bought plenty from McMasterCarr from their big thick yellow catalog before websites even existed. Amazing how you judge people by reading a few words.

-------------------------------------------------------------------

Go ahead make my day...throw in another cheap shot. You won't get a reply from me.

EDIT: Just a warning, keep it technical. If you want flame, take it to PM's. _Mahjik

Fritz Flynn

iTrader: (263)

Excellent advice just my opinion of course

TomsRX7

I think you may need to continue your research . Can you give some facts and/or personal experience why the HoseTechniques is garbage???

I did my vacuum hoses (and my whole car for that matter) myself and I had purchased 3 products:

• Viton from McMaster Carr
  The Viton is by far the most resistant to cutting. It's even HARD to cut it with a razor blade!! But it crinks WAY too easy when you have to make a curve.
• silicone hose from Neo Oil/Baker Precision
  The Neo/Baker hose also crinked (but not as easily) when you have to make a curve or bend because the wall thickness is actually too thick.
• silicone hose from HoseTechniques
  The Hose Techniques hose was the best all around. Perfect-thickness hose wall keeps it from crinking even when making tight turns. The stuff worked great!!!

So I'm really curious why you would call it garbage when I had all 3 choices side by side and HoseTechniques was clearly the winner.

-Tom

RonKMiller

No reply neccessary. I was just trying to enlighten you.
You are obviously smarter than me.

Really, it's OK if you don't know what you are talking about. It just takes time to grow up and admit that you are wrong:

Buna N: -40 to 212 F

Viton: -15 to 400 F

Silicone:-80 to 450 F

Even though silicone is superior in regard to temperature over Viton, if I was building the Space Shuttle I would probably choose Viton due to the fact that it is more chemically inert. But for my car - I would sure put the money I saved into other things that make it go faster. But wtf, that would be stupid according to you - huh, Chisel Chest?

So, beside your obvious inability to express yourself without lowering yourself to common ghetto slang - ******* (oh, that was a mistake, I lowered myself to your level, I aplogize profusely) - do you have any additional PROOF to back up your claims?

Lead, follow, or get out of the way.

RonKMiller

Well, actually I do - since I used Hose Techniques (not the overpriced kit but the raw stuff) for my first job out of three:

1. It is a major ripoff in regards to price, even if you
buy it by the foot like I did.

2. It you try to follow the original OEM bends it will
kink every time - I needed to insert #1 springs
inside the hose to keep it from failing on tight
curves.

I agree completly with your finding on Viton. Even though it is a pain in the *** to work with, there is no question it is the best stuff out there, but it is WAY overkill for cars, even our hot little bastards.

The ONLY SILICONE HOSE that is mil-spec (that means it has been tested and approved for use in aircraft) that I have found is DuroBlu Si. Having worked on jets, turbines, piston engines, motorcycle engines and yes, rotaries,I can say that it is the ONLY hose I would use and forget about it.

TomsRX7

Hehehehe, yes, the HoseTechniques certainly was expensive and overpriced, I agree, but spending $50 or even $100 extra to get the best set up was worth it to me at the time. So yeah, it was pricey, but I kinked less than anything else I had tried. Also, I should note that I used red hose. For some reason, it seemed to me that different colors of the same brand would handle kinks differently.

As for the DuroBlu Si that you are talking about, is that what you finally used? And, honestly, did it kink when making tight curves? Can you provide a site where it can be purchased? Kinking is my main concern for these hoses cuz no matter which you choose, they will ALL last 10 years or more.

-Tom

turbojeff

iTrader: (30)

Ditto. If everything is working fine don't do it.

Jeff

Mahjik

iTrader: (1)

I agree with the first part.

If it ain't broke, don't break it.