need exhaust systems for my 84 720 long bed

[michaelaguirre]

I have a 84 nissan longbed with a 3speed auto tran. and the z24 moter all still stock looking to put on a new exhaust system on it so i will have a little go

[PEZi]

Custom is the only way to go. Pick your favorite muffler, and your favorite exhaust shop... go to town! 2.25" is best for the Z24

[breadbox]

^---- he speaks truths.

[michaelaguirre]

do tou have any recomendations muffler and how abought headers and cat or do i only have to go from the cat back

[PEZi]

Unless you're looking to spend a little higher $$$, just go from the cat back. If you don't have emissions, go catless and 2.25" from there back.... if you need to pass, just go high-flow from someone like magnaflow.

[michaelaguirre]

do you have any sugestions on how to get more power with out breaking the bank and still get good fual ecomany

[PEZi]

The best thing you can ever do is ditch the stock carb. Not sure if that's considered 'breaking the bank' or not... but you will never regret it.

[michaelaguirre]

thx for all your help . Where do i look for a carb at and what do you lik e. LIKE the magna flow only liike 150 from what i seen on line . thx again ill take the help from a smart 720 owner

[PEZi]

If you're looking for a new carb, Weber is pretty much the only way to go. You can get them from webercarbsdirect.com. There are really only two options to go with for these trucks, a 32/36 for fuel economy, or the 38DGES for performance.

[michaelaguirre]

thank you

[flinterman2000]

You can change the coils but I have no confirmation on this. I was going to use the MSD system but had to change plans as the engine I installed is not running as yet.

[michaelaguirre]

i have to use my truck for work and it is a snail when take off can the coils give it more torque or low end and yes i know it is a four cylender. but i have seen these trucks with few mods that made a big difference in power any insite to this

[PEZi]

The mods really don't add a lot of power to these things. The best thing to do is actually get things freshened up, then do some simple mods for breathing and you're set. I think my full exhaust including headers added around 8ish HP... NOT a lot. But with the vac delete and other randoms mods to just make sure it runs properly, it runs like a champ.

[michaelaguirre]

any recomendations this truck a fully stock

[PEZi]

If allowed where you are, do a vacuum line delete. Then move on to getting all new plugs, wires etc. and a new air filter/carb if you can afford it. All of this while making the exhaust 2.25" from the header back, and you should be pretty golden.

[michaelaguirre]

Im in phoenix AZ amt one know and thx again

[drumaniac3000]

IIRC in Phx you will have to go through emissions testing with that truck. So no go on the vac line delete, you might be able to get a carb swap by them but a lack of vacuum lines will probably draw some attention.

Anyone else been through emissions test/ inspections lately?

[flinterman2000]

If allowed where you are, do a vacuum line delete. Then move on to getting all new plugs, wires etc. and a new air filter/carb if you can afford it. All of this while making the exhaust 2.25" from the header back, and you should be pretty golden.

Since you can't do a vacuum delete, pezi has the best solution that doesn't break the bank. Good plugs and wires (E3), the right exhaust (2.25), properly tuned carb and good coils and you're good to go.

[84Datsun720]

Custom is the only way to go. Pick your favorite muffler, and your favorite exhaust shop... go to town! 2.25" is best for the Z24

I was wondering what you think of maybe doing a 2.75" exhaust?