Thread: Ebay couplers + 9psi

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2007-12-12 16:22:14

#11

Fatonsr20

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I've also blow a hole thru an ebay coupling myself right before running a porshe lol now i stick with vibrant couplings and t-bolt clamps

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2007-12-12 16:26:40

#12

Bagato

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Originally Posted by Fatonsr20

I've also blow a hole thru an ebay coupling myself right before running a porshe lol now i stick with vibrant couplings and t-bolt clamps

I was racing an STI lol, at least I still won... The problem with ebay couplers is that they are so crappy that they inflate a lot under boost, and cut them selfs with the clamp.

It happened on 4th gear:

http://www.youtube.com/watch?v=uWKiBSUDQMI

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1992 red 300ZX N/A
1991 black Turbo SE-R

Built SR20VE-T, Tubular manifold, SC6262SP, Tial 38mm WG, Calum RT, 740cc DW injectors, SR16 cams, 3" JEGS cutout, LC-1 wideband, Z32 MAF, P11 tranny, Z32 brake conversion, Stillen body kit.

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2007-12-12 16:30:41

#13

Bagato

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Originally Posted by Fastspec2

If the ends of the pipe are bead rolled you can use just about any type of clamp this side of a zip tie. Bead rolling is huge. But if you don't want to deal with that, wash the inside and outside of the coupler and the pipe so its squeaky clean, make sure your useing the correct size conector, lube the conector up with a little hand soap and slide it together with t-bolt clamps. Ones the soap dries you can tow the car from the connector. I've run 40+ psi on this technique and rarely had a problem. The connector that is split in the pic is a none reinforced one. Look for the fabric, polymer, nylon reinforment material in a connector made for boost. In my eperience you want at least 2 layers of the stuff for most street turbo setups. Vibrant performance sells conectors, not cheap but they are the goods.

EDIT:And look I can edit my stuff.

Wait so, just the soap drying is what makes it so strong? or I got it wrong..?

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1992 red 300ZX N/A
1991 black Turbo SE-R

Built SR20VE-T, Tubular manifold, SC6262SP, Tial 38mm WG, Calum RT, 740cc DW injectors, SR16 cams, 3" JEGS cutout, LC-1 wideband, Z32 MAF, P11 tranny, Z32 brake conversion, Stillen body kit.

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2007-12-12 16:31:53

#14

Fatonsr20

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Yeah, mine was just a replacment for a ripped one but didnt last too long lol

Nice Vid man...gave it to the STi pretty good

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2007-12-12 16:49:54

#15

Cliff

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My thoughts based on experience...

JB doesn't work as well as it should. My silicone couplers actually peeled the JB weld apart from the piping, even though I scored the piping to ensure a solid bond.

DONT LEAVE GAPS, from pipe to pipe, while using standard couplers. Get them married up as close as possible, to prevent too much flex.

If you can't get them mated as close as possible, invest in the couplers that have a bulge in the middle, so as to allow for flex, without blowing couplers all the time.

Worst case scenario: Weld the piping as much as possible. I ended up going this route, because no matter what I did, I blew couplers at 10psi. Since having the hot side piping welded, and the cold side piping re-adjusted, I have yet to blow off a coupler.

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'17 Golf R

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2007-12-12 18:28:55

#16

Fastspec2

Moraly flexible.

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No, super clean is what makes it work.

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2007-12-12 18:45:36

#17

james23nyc Online/offline status of james23nyc is unknown

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Originally Posted by SneakyOwner

Hmm Ive never had a problem blowing couplers off but Im still only at 7psi. But blowing one apart lol thats why I paid $20 per coupler for some heavy duty ones, peace of mind is a great thing.

yeah i totally agree, last thing you want to do is drive worried

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2007-12-12 20:35:10

#18

SE-R_TECH

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Originally Posted by Bagato

Were you racing down hill?

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Ryan

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2007-12-12 20:49:44

#19

Bagato

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Originally Posted by SE-R_TECH

Were you racing down hill?

Is actually uphill.

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1992 red 300ZX N/A
1991 black Turbo SE-R

Built SR20VE-T, Tubular manifold, SC6262SP, Tial 38mm WG, Calum RT, 740cc DW injectors, SR16 cams, 3" JEGS cutout, LC-1 wideband, Z32 MAF, P11 tranny, Z32 brake conversion, Stillen body kit.

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2007-12-15 07:27:46

#20

S13Teddy

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One more thread to prove that eBay stuff is crap. haha

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