Mongo

Bumping an old thread about this boot. WIll this fit a stock S4? Price is almost the same as an OEM MAF boot.

hacker-pschorr

Yes

Brett Matthews

If I had known about these boots back when my boot cracked, which may have been before I even purchased Rosy [ I don't know ], I would have gone this way over stock.

Just to enlighten anyone, Rosy is an '87 auto. We bought her in May of '01, and while for the most part, she ran well, several odd and intermittant running faults manifested until the fall of '02, when she would run for only 2-8 minutes, shut down, and be hard to start, if it would start at all, and not run for long. That turned out to be the fuel pressure regulator, sticking closed, and open. Pressures over 100 psi { highest pressure on my gauge, which was quickly pinned }, or "0" psi. Not really regulating.

While apart, I decided to have the top end parts powder coated, and the vacuum hoses replaced.

While disassembling the top of the engine, I just *happened* to notice the stock MAF boot had a 2 inch crack, starting at the right port. Sent for a new one. After reassembling the top of the engine with all the new parts, Rosy ran better than before, and MANY, if not all of the previous intermittant faults disappeared, never to return, so far....

As this boot touches nothing but the clamps holding it to the MAF, manifold, and other hoses, and there were no markings of anything else touching or puncturing it, I will suggest this is an item that any new owner, or long time owner, of an '87 or later, may want to have a look at, upon disassembly of the top of the engine, or any kind of undisipherable running condition. If all other checks fail to turn something up.....

David L. Lutz

Funny this thread came up, I just finished swapping out my stock boot for the silicone one (thanks George). I had purchased it when they were first available but had not gotten around to it. Fits great and on the Murf Stage III no need for "tie wraps" running right at 11 lbs. boost.

My OEM stock boot was installed right at a year ago, has less that 2000 miles on it and looks brand new. Mongo, you are welcome to it if you decide to stay stock. PM me with your address and I will send it to you if you would like it.

ptuomov

A quick question to everyone running boost. What have the experiences been under boost with the stock boot and the new 034 silicone boot? In particular, longevity and popping off under boost?

jorj7

I don't know if my input will help you, but I've been using the new Silicone MAF Boot since I first posted
about it and it's still working well. I had 4 Open Road Races since then, 3 160 mph class and 1 170
class, and it's managed to stay together. I have done a few things to reduce the heat in the intake,
so that probably helped also. I'm running 15 psi boost at sea level, and a little over 12 psi at the races
(they are at 4,500-6,000 feet elevation).

victor25

Hey George
I just ordered one of these tonight!! can your guess why??? Yep just split mine in 1/2 hahaha
I sure hope they have them in stock still!!! Maybe I should have gotten a few of them for safe measure in case they ever do run out.

thanks for making it easy on the rest of us

928mac

Ya victor it may be worth adding 1 to every kit for an extra $45
BTW does your water cooled system come with the extra rad and fan and plumbing for the intercooler?

Bill Ball

AFAIK, 034 only made 30 of these boots. Hope you get one Victor or perhaps if you intend to supply the boot as part of your kit, get 034 to do another production run. It has done the job for George to this day while the stock boot blew apart pretty quickly.