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Old 02-03-2003, 12:28 AM   #1
robert99b
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Join Date: May 2001
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WR Blue Pearl

Default Helix DP installed .. question for other Helix DP owners...

Installed the DP on Saturday. Fit was perfect. I even modified the heatshield so I can put it back on.





Question is, in the first pic, the DP comes in contact with the hose coming out of the firewall. What did you guys do with the hose?

After my test run, the hose obviously has a hole on the side now.
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Old 02-03-2003, 12:34 AM   #2
bamfwrx
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that's just the condensation drain for the a/c you don't have to worrie about it
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Old 02-03-2003, 01:41 AM   #3
wReXeRw
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I dont use my AC, makes my car feel soo sluggish
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Old 02-03-2003, 01:46 PM   #4
Gonz
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Default Tie wraps

Quote:
What did you guys do with the hose?
I used some tie wraps to relocate it off to the side, towards the fender. You still want to make sure it points down and you don't pinch it off, so you don't have the hose getting backed up and possible water dripping down inside the car.

I used several tie wraps just around the house its self, to keep it form collapsing when you bend it. If you just try to bend it and secure it out of the way, it collapses and probably won't drain properly.
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Old 02-04-2003, 01:36 PM   #5
02R6
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At first it touched my hose too. I checked on it a day or two later and it was not touching anymore and there was no hole. Clearance is tight though. I wouldn't be surprised to see a hole when it gets warmer.

How was your fitment elsewhere? I still need to dremel the rearmost bracket on the dp to keep it from rubbing on the chassis over bumps once everything is warmed up.
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Old 02-05-2003, 01:44 PM   #6
robert99b
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Thanks guys. Yes, the AC stays off most of the time. But I didn't enjoy the smell of burning rubber (?), so I wanted to do something with that hose. It already burned a hole through, but i've zip tied it away from the DP.

As for fitment, it is very good. I'll get under the car this weekend to make sure it hasn't moved, but I get no additional noises or clunking while driving.
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Old 02-05-2003, 05:18 PM   #7
gpd323
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I also have the Helix, I had to cut the rear bracket off except for the bolt hole part because it was banging against the tranny cradle. The onther side of the DP hits the cradle there too. I have dremeled the cradle some but it especially vibrates when I'm in reverse. I think I am going to have to pull it off and wap the DP with a hammer to make a small dent in it so it clears.
The rubber drain hose is tucked to the passengers side so it would not melt.
Also I have all sorts of problems getting the DP to stop leaking where it meets the stock mid-pipe. I gave up and bought a Apex-i World Sport catback but the flange is shaped (rounded) like the stock midpipe so its still leaking. Upsets me. I called every muffler shop and no one carries a flat 3" two eared flange that I could have welded to the AWS or stock midpipe.
Greg Downing
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Old 02-05-2003, 11:32 PM   #8
Gonz
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Default

Quote:
. I have dremeled the cradle some but it especially vibrates when I'm in reverse. I think I am going to have to pull it off and wap the DP with a hammer to make a small dent in it so it clears
I used to have the reverse rubbing problem pretty bad. Before putting a dent in your DP, try disconnecting it from the cat back, and loosening both tranny mounts. Then pry the pipe over to the driver's side before tightening down the two DP to tranny bolts.

I did that first and then had to drop the DP and notch the transmission support bracket like you say you've done. Mine was hitting opposite the rear DP bracket like yours and several others. If you really have to put a dent in the DP, you may want to send it back for an exchange. It's a shame to have to bang up such a nice piece.

I have no banging, clunking after modifying the tranny support.

Also, you are having problems with leaks at the rear of the DP to stock cat back section. I haven't had any problems there, nor read about any with the several other users who have posted reviews of the Helix pipe.

I think you may have unfortunately gotten a particularly out of spec pipe.

Gonz.
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Old 02-06-2003, 09:38 AM   #9
gpd323
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Yes I agree it would be a shame to dent the DP. I played with the hanger supports and I had the tranny bolts loose and pryed the DP over to the drivers side like you did. Just not enough room on the opposite side where the DP hits the tranny cradle. So this weekend I am going to use a dremel and slot the DP rear bracket and push the DP over to the drivers side a wee bit more.
I am so frustated with the DP to catback flange leak that I am going crazy. I had the leak with the stock mid-pipe and I still have the leak with the new Apex-i World Sport Catback. The flange on the DP looks flat and it should seal well. Max at Gruppe-S sent me another gasket and I am currently using two gaskets which help but it still leaks.
I guess I'll put it up on ramps, start the engine and try moving the DP to mid-pipe flanges slightly to see if I can eliminate the leak. I hate to cut off the AWS pipe and flange and have a new one put on to cure the leak because in the future I may want to sell the AWS.
Thanks for all the info
Greg Downing
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Old 02-06-2003, 02:12 PM   #10
1quikrex
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So is the Helix and the Invidia downpipes the same piece? Have most fitment issues been worked out or is it completey luck whether or not you get a pipe that fits correctly?
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Old 02-06-2003, 03:03 PM   #11
Gonz
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I've been told by one of the Nasioc vendors that the pipes are the same.

I know that Gruppe-S has tried to modify the bracket on their pipes to fit perfectly. BUt if you've been reading about these you know there is still some tweaking to be done to get a perfect fit, with no interference.

I think this is why they're selling the DP's for like $295, shipping included, with the CEL fix included and not selling it for $360 or whatever they said the price was going to be after the introductory period ended.

So, I'd say the first batch of these does not fit as easily as most other 3" DP's. The up side is that you can get a bargain price on a very nice 3" stainless, bell mouth pipe IF you're willing to deal with some fitment issues.

I assume at some point there will be a second production run where the brackets will be perfect from the factory rather than modded by Gruppe-S or other vendors.

G.
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