Installed SLP FlowPac (Some Clearance Issues)

[s900]

Originally Posted by keliente@pcmforless.com

That's actually not true. The stock y-pipe is flattened out for clearance but it is still the same amount of area, just a different shape. As far as better sound, you are getting that from the catback you installed, not because the pipe is more round now.

Going from the stock y-pipe to an aftermarket one IMO is not really worth the $200-$300. If anything, hold off on getting a y-pipe until you get longtube headers, because you will need to replace it again anyway because the stock one doesn't fit headers.

The shape of the pipe does change the flow pattern. Any change in shape or any additional bend causes additional friction and may cause turbulent flow. The X-section shape does contribute to flow pattern and has different effects on fluid (air/gases/liquids) head losses. To what degree it helps I'm not sure, but the stock pipe is really flat as compared to the replacement pipe.
http://i76.photobucket.com/albums/j3...une2006052.jpg

[01Z]

Originally Posted by s900

Talked with the Tech support at SLP and they said that contact with the lid and hood sometimes happens. About 1 of every 100 cars will experience that problem. SS models seem to experience it more.

I think the contact problem is worse than SLP thinks it is. Mine does it as well and I have the lid seated as far back as possible. Here's a picture of why the lid is rubbing my hood. You can see that it is making contact with the cowling that covers the radiator and I see no easy method of lowering that.

I intend to attempt heat / denting the section of the lid to let it sit a fraction of an inch lower. SLP should recognize the problem so their subsequent lids quit doing this.

[s900]

Wow, thats a lot of contact. I'll have to check mine out. I don't know why I get contact...since I should have more clearance with a Z28 hood. The problem is the contact on the right of the picture, right?

[s900]

Here's a pic from the side. Everything looks seated properly to me. Not sure where the lids base would rub.
http://i76.photobucket.com/albums/j3...uly2006055.jpg

[01Z]

Originally Posted by s900

Wow, thats a lot of contact. I'll have to check mine out. I don't know why I get contact...since I should have more clearance with a Z28 hood. The problem is the contact on the right of the picture, right?

Yes, it's just one significant spot on the right side of the picture but the way a fitment works is once one thing goes down something else has interference. I'm going to try to heat the bulging part of the lid enough to see if it can be softened. If it can then I will likely be able to distort it enough to get some clearance.

[sujomatt]

did they give u the 98-99 one by accident?

[sujomatt]

whoa bringing this back from the dead, sorry haha

[CRASH00527]

WOW this is old..well not too old..lol

[NJ_2002_Z28]

problem is your not supposed to use the rubber gasket that comes with the K&N Filter..

[sujomatt]

i got my SLP Flowpac and installed it.. that was 1 easy install lol

[Dmarrello]

hey i installed my flo pac today took about and 1 1/2 hours and wow i noticed sound diffrence in my exhaust and throttle response is crazy better. def worth the money and time spent and so far no hood contact but we will see.

[sujomatt]

yea i agree - ive noticed a little something from my flowpac as well. glad to hear it went well

[Y2K Arctic White]

Originally Posted by s900

I am having a clearance problem with the SLP Lid. It hits my hood and left a scratch mark. See pics below:
Notice scratches at the top of the lid:

I have the same problem too. A lot of people do...

[Wild Willy]

I did the SLP Y-pipe after doing the cat-back, and it did make a nice difference on the throttle response- if you are going headers it would be better to wait and get the pipe that fits them- but it DID make a noticeable difference in mine-

I did the SLP lid, after having done the free ram air- didn't notice that big a difference. When I did the FTRA, I noticed it at highway speeds, crisper throttle response- not a big difference off the line, buty cruising it was noticable.

Engines are basically air pumps, so any breathing improvements have to help

[sujomatt]

Originally Posted by 01Z

I think the contact problem is worse than SLP thinks it is. Mine does it as well and I have the lid seated as far back as possible. Here's a picture of why the lid is rubbing my hood. You can see that it is making contact with the cowling that covers the radiator and I see no easy method of lowering that.

I intend to attempt heat / denting the section of the lid to let it sit a fraction of an inch lower. SLP should recognize the problem so their subsequent lids quit doing this.

Can you show us a full pic of it on the car (installed)? That doesnt look right in the least..