Garage Storage Organization and Garage Cabinets

Shadow24V · 07-10-2006, 12:26 AM

yeah, the 3Gs are slow, but they also weigh 3200+ lbs. IIRC a 3L duster is ~2300, 1000 lbs lighter than a 3G. also i know that the K frame will cause issues with the Y pipe, but that is why i am going to have something custom made up to go over the steering rack. shouldnt be that hard to do yourself if you have access to a welder and materials.

ok, for the 12v, a 2.5 or 3 might work better. i dont know (mines dead lol) but in all the 3G postings ive read for the diamante/galant etc 24v, 2.25 is good for decent NA mods, 2.5 is good for beginning to mid-level turboing and 3+ for balls-to-the-wall boosting. this is what ive garnered from club3g.com over the past 6 months or so *shrugs*

Ondonti · 07-10-2006, 05:06 PM

Quote:

Originally Posted by Shadow24V

yeah, the 3Gs are slow, but they also weigh 3200+ lbs. IIRC a 3L duster is ~2300, 1000 lbs lighter than a 3G. also i know that the K frame will cause issues with the Y pipe, but that is why i am going to have something custom made up to go over the steering rack. shouldnt be that hard to do yourself if you have access to a welder and materials.

ok, for the 12v, a 2.5 or 3 might work better. i dont know (mines dead lol) but in all the 3G postings ive read for the diamante/galant etc 24v, 2.25 is good for decent NA mods, 2.5 is good for beginning to mid-level turboing and 3+ for balls-to-the-wall boosting. this is what ive garnered from club3g.com over the past 6 months or so *shrugs*

most of them dont know anything about cars either.

Dyno results or track results. Those speak. Ricers who read about n/a honda exhaust sizes should stop posting idiocy like "a turbo 3.0 liter only needs 2.5" exhaust" 2.5" exhaust is great for an N/A 3.0. The 24v isnt going to make more power then a 12v by using smaller exhaust...........

My 12v spirit weighs 3000lb and Im sure there arent any n/a 3g's faster then it.

moorepowercoati · 07-10-2006, 05:57 PM

I am n/a at this point, I don't believe you have to have backpressure to make power, I am not going for drag racing max power, I just want to get up to around 200 h.p. I am also going to build my headers, not buy mitsu headers. I have never seen a n/a motor that did not respond to headers, before someone says they don't do any good. If they are not making power and tq, most likely they are to large of primary.

Shadow24V · 07-10-2006, 06:53 PM

ok, let me rephrase what i said, a PROPPERLY sized exhaust will do wonders. an improperly sized exhaust will hurt a cars performance.

heres one of the threads i read that kinda discusses it, im still looking for the one where the size recommendations were posted. (btw, i dont claim to be an expert at all lol)

moorepowercoati · 07-10-2006, 07:06 PM

I doubt you would see a differance below 4500-5000 rpm. Peak power I am sure a 3" setup would win out. I am a middle aged semi-balding fart that does not need a loud car anymore. Had them, liked them, don't need anymore. I have had a big exhaust for my 03 cummins for 2 years now on the floor, but I don't want to hear it. Waiting till I have time to put on my larger turbo, then will have to. Borla and dynomax claim a 2 1/4" single will support 225 h.p.

**crazyace** · 07-10-2006, 08:32 PM

That 2.25 inch exhaust will probably handle that if not close to it, "IF" you have the funds to research and make sure it is a fully "tuned" exhaust. The 3.0 cars (actually fwd mopar in general) do not have that kind of backing. Therefore you will notice a much better gain with a 2.5" mandrel bent exhaust N/A.

Shadow24V
You will find that a full factury set up 3.0 P-body weighs in around 2750lbs, that is with a full tank of gas too. Ran mine across an accurate set of scales years ago.

Shadow24V · 07-10-2006, 10:35 PM

ok, guess im off on everything today lol

well in that case when i finally get around to turboing the 24v, 2.5+ is probably the way to go then. you learn something new every day i suppose lol

**crazyace** · 07-10-2006, 10:41 PM

Man, you may want to very seriously listen to these guys about going with a 3" with a boosted V6. Considering even most good sized four cylinders love that size. I can in no way understand those 3G guys train of thought in believeing that a 2.5" would ever be the best choice for a turbo car. All that smaller exhaust is going to do is choke off the turbos ability to quickly spool.

mwinkle353 · 07-10-2006, 11:05 PM

Just get the 3" exhaust. If you think it's too large for your N/A motor, then put a more restrictive muffler and a non-high flow cat on it. Or just don't touch your exhaust until you're boosted.

It's really that simple.

Ondonti · 07-11-2006, 12:16 AM

ace, i would say that the exhaust can "handle" it........meaning its possible to make 225hp with 2.25" exhaust, but I wouldnt try it no matter how smart the exhaust company might think they are.
I would guess that it is not possible to make 225hp on our motor with 2.25" exhaust. maybe on a much larger engine which would not require as much efficiency to make 225hp.

2.5" exhaust is almost a joke on a 1.6-2.5L 4 cylinder. you could install one.......but why? The car wont be quieter, you wont save money, and you will be slower.

Shadow24V · 07-11-2006, 04:45 PM

i agree that on a turbo application a 3" will probably be the way to go, but for N/A, using a slightly smaller pipe should increase exhaust velocity, resulting in scavenging and so on (if i understand some of the posts ive read and what i remember of gas laws lol)

**crazyace** · 07-11-2006, 08:57 PM

Considering that no one in their right mind who owns a Mopar version 3.0 will try to produce that kind of power with only a 2.25" exhaust. We will never know for sure.

As for a need for efficiency, for the 3.0 of ours to truely be such it would require a very large investment to redsign many parts of it. The computer alone will kill any sort of efficiency someone tries to build. Take Brent's own vehicle for instance. He has went through a whole lot of head work to over come one of the 3.0 engines larger short comings. Yet we all know that though it will make a nice difference the true gain will not be till he gets rid of that crap tune it has to run on.

Shadow24V - Just do yourself a favor and put 2.5" on it if you are going to stay N/A. If you want to go with a turbo then listen to just what Wink said.

93sundance · 07-11-2006, 10:29 PM

Go with 3" if you are boosting the 3.0L!!! 3" exhaust doesnt seem to hurt N/A 3.0s.

Shadow24V · 07-12-2006, 06:37 AM

hmmm. i dont have the $$$ to go turbo (yet...) and hi-flow cat i bought is 2.25, i was planning on custom exhaust work anyways due to the headers, but if my smaller diameter cat is going to create a choke point.... :-/

Ondonti · 07-12-2006, 02:20 PM

Quote:

Originally Posted by Shadow24V

hmmm. i dont have the $$$ to go turbo (yet...) and hi-flow cat i bought is 2.25, i was planning on custom exhaust work anyways due to the headers, but if my smaller diameter cat is going to create a choke point.... :-/

sounds like you want a 2.25" system to be the right choice because you bought the cat.
It is the wrong choice. Total waste of money if you plan on doing a turbo since you will have to throw away your exhaust. That is not smart modding.