Any tuning to stock?

Posted: Sun Jul 08, 2007 11:11 am Post subject:

Sure I'll jump on that. All I need is a time and place to pick it up, and I
I'll hand over the cash Smile

I'll PM ya for more info.

I know volant sells "sleeves" for their filters to grab debris.

Last night after meeting up with some friends I popped the hood when I got home to have an even closer look at the air box assembly.

I'm actually surprised they didn't make the stock air box pull at least some air from the front quarter panel area, theirs a very open path to clean air there thats separated from the hot engine bay air simply because its so isolated...that could be a very low pressure zone from a siphoning effect...could also be it would have made the stock airbox to loud, not a problem for me.

Anyone ever thought about using shop vac filters? When new they flow good and heck they are cheap, only thing I would have to fabricate is a way to clog the hole in the tip of the cover. They even come in a few "styles". That would be taking a HomeDepot intake to another level Razz

I'd have to wonder w/o the interior rib support if it would collapse on itself, some wire mesh would solve that problem.

Since I work M-F 8-5 My time during the week is limited. I could make some late runs at Lancaster on tuesday, probibly someone their would have a scanner Smile

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Best Formula N-A 12.1 @ 110 (pre-engine swap)

Posted: Sun Jul 08, 2007 4:23 pm Post subject:

Not that you guys haven't see stock exhausts before but in all honesty, other than not being 3inches, it doesn't look too restrictive:

Also what is this "bulge" on the inside of my front passenger side tire:

Images are all click-able thumbnails.

Posted: Sun Jul 08, 2007 4:55 pm Post subject:

If your motor is stock, yeah, that exhaust is fine. Wink

You can't see what's probably the biggest restriction, which is the internal diameter of the downpipe where it connects to the exhaust manifold.

A ZZP shorty would fit fine.....assuming you're having extra pipe (and optionally a cat) welded in to hook it up to your catback....so it's probably meaningless. We don't have the 97-03 u-bend, and yes the 3.4/3.5 drop w/o any breathing mods was likely directed at 97-03 as well...though I imagine anyone would tell you that you really should do intake/exhaust work anyway to get the most out of it.

The bulge in the tire is a manufacturing defect and should be warrantied.
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2018 Acadia
Retired: 2014 ATS, 2004 GTP

Posted: Sun Jul 08, 2007 5:54 pm Post subject:

Na, Brian. If it looks good from the outside, then it flows good Idea

_________________
Hi, I'm Matt.

I'm the resident smartass and I have fourblack children: (ok, one's only half black..)
07.5 2500HD, Duramax, Edge Race Evo CTS, MBRP 5" Stainless, TransGo, Sleeves, EGR!, PCV
09 VRSCDX - Night Rod. Flat black, gloss black
02 Black Z06. All work done by New Era Perforamnce. 519/497 at the rear, 3100 lbs.
05 Arctic Cat Firecat F7 - Sold
07 Arctic Cat F8 Sno Pro - Smashed into 1000 orange pieces.

Posted: Sun Jul 08, 2007 9:02 pm Post subject:

Hey I just like to understand the why behind the theory Smile

So I guess a 2.5 downpipe would be fine really, since I wont be doing headers and the main problem is the that it collapses down....I don't see the point in sticking a 3 inch section in the middle of 2.5 inch system...unless I went the route of a complete 3 inch system.

Its just the pulley seemed like quick cheap horsepower even if I don't get it to its full potential right away.

For a cold air intake I suppose i could just cut and gut a bit of the stock box and add a pipe over to the fenderwell....its just that section of pipe where it turns looks kinda restricted.

Posted: Sun Jul 08, 2007 10:11 pm Post subject:

Posted: Sun Jul 08, 2007 10:50 pm Post subject:

After I posted that I kinda figured it had something to do with shifting and thats probibly why they make the pipe so thick up there....anyway on that national site I'm not sure what the mean by this "A shop can put together a 3" for about $120.00 welding to your existing flex pipe."

All I saw under there was pipe and an ugly looking thing I guess is the cat. (this was in the 2004+ Specific forum mods to get list). Probably adding the cat into the figure brings it up to $200? Don't really know what they mean.

That would certainly drop the price, zzp wants about 300 shipped for their stainless 304 version. (thats the version with the cat..I could drop down to their aluminumized version and save 50 bucks but I think stainless is the way to go).

Well assumeing I just go the create a hole in the airbox, pipe it to colder place idea that'll cost me nothing.

So if I went ahead an got the stainless downpipe from ZZP and all the other goodies (plugs/t-stat/gaskets-washers) that would put me at a solid $360 including the pulley I hope to get from the generous Doug.

From their I'll get a nice tune from New Era...I'll have to get thier rates but I expect it couldn't be tooo hard on the wallet.

Thanks again for the wealth of knowledge your're all spewing at me.

Posted: Mon Jul 09, 2007 4:54 pm Post subject:

ya, your stock DP is double walled tubing. It looks larger with a little larger the 2.5 OD when you look at it form the outside. But see all the dents in it. Its so the 2 layers are locked in nice and dont rattle and stay soild. Also the stock flex has a inner and outer insert to strengthen it. I have cut a whole GP apart for the stock airboxes to the tips. I know the sizes of the top of my head. lol

But the smallest restrion is the ID if the flex in the DP. Its 2.10, next in the outlet of the front manifold thats 1.53 but only half the CID is passing thu it.

Ive never dyno tuned a stock GP. But Mike at NewEra tuned my camrao when I only had a airbox lid, and I did some free mods. The car makes great power, and he got good power gains form a car with only one mod really.

http://i2.photobucket.com/albums/y11/studderin/IMG_3711.jpg
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New Era performance

01z28, M6 NA, mullet, T tops, siqqqq

Posted: Mon Jul 16, 2007 8:39 pm Post subject:

Been really playing with ideas in my head regarding the exhaust.

If I did the downpipe, got a 3 inch resonator, and just put pipes to tips, I'd imagine my car would be louder, maybe sound good, and be a good option down the road.

Something like this (my doodle I did while brainstorming, at the very least a chuckle for all):

Figured I'd head over to Mufflerman and see what kind of estimate they give me...especially if I bring such parts as the Flex, Cat, Resonator, (all purchasable from ZZP) and the tips are already on the car which they put on Smile

Was thinking:
Flo-Pro Resonator- $59.99
Magnoflow Cat- $69.99
Interlock Flex- $39.99
Plus whatever the custom bending and such costs.

Just something I came up with if I don't grab the bolt on downpipe and if I want to dich my "cat back", ditching the resonator on the other hand seems to be a popular option to, that would give me 3 inch all the way to the split....although sometimes I think its better to go the silent route with these cars, hard to find the right combination to make them sound pleasing. This ain't to bad: http://www.youtube.com/watch?v=spo6BdX32xI

Posted: Mon Jul 16, 2007 9:58 pm Post subject:

Posted: Mon Jul 16, 2007 10:15 pm Post subject:

thats not gona work you have a gas tank in the middle on the back ends

Posted: Tue Jul 17, 2007 6:14 am Post subject:

from these sound files it didn't seem that bad Razz

http://www.rmcgp.com/exhaust/willy_idle.wav
http://www.rmcgp.com/exhaust/willy_draggn.wav

Posted: Tue Jul 17, 2007 10:25 am Post subject:

Theres really no reason (besides making things harder on yourself) to have an exhaust run any other way besides stock. Some of us have been around grand prixs since...98 or so. We've seen every idea you can think of for exhaust. So, please believe me when I say that running the stock routing is your best bet. Besides, you're stock in every way. If my car can run mid 12s through 2.5" exh. with STOCK Y and STOCK mufflers...its not that bad stock. Do whateveryou want as for mufflers....all sound pretty shitty at wot.
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ZZP stuff...
Heads (started as ZZP stg.3 with some improvements)
Cam (XPZ with a slightly different components for valve movment)
IC (Ford Cobra coolant resv., frt exchr the size of a engine rad. weight consum. rear expans. tank)
"Certified Auto Trans Shop" Transmission sold by ZZP...I have no comment for this peice of...great trans. Wink

Also,
SLP Headers <--FOR SALE
Eaton's Gen.3 M90

Posted: Tue Jul 17, 2007 12:50 pm Post subject:

Posted: Tue Jul 17, 2007 1:47 pm Post subject:

Its sad that my 3100sfi sounded better than even the 10sec. 3800's

Crying or Very sad

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