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biturbo hero
01-05-2005, 08:56 PM
sup folk.
gotta buddy with a 97 2.8L, we are toying with the idea of hitting his intake with a dry shot, fifty probably. anyone else done this, or known anyone else that has???
comments/suggestions??

e.van
01-05-2005, 08:59 PM
The only thing with nitrous is, you had better have the engine tuned PERFECTLY or you will encounter problems (ie boom!). Tuned properly I've heard of motors lasting "forever." Never seen it on an Audi though.

greengravy
01-05-2005, 09:05 PM
ive had to push a buddies car 2 miles to a gas station with another friend because he blew his engine running 100 dry shot.... if youre gonna play around with that sh*t your engine better be tuned like e.van said. i wouldnt mess with it, but hey, its not my car nor my decision

A4_2.8tuner
01-05-2005, 10:39 PM
i've also been wondering the same if anyone has done a 50 shot or somethin on their 2.8. My buddy ran it on his VR6 for a while with no problems, around a 50 shot, but i know thats a little different motor.

greengravy
01-05-2005, 11:50 PM
you would seriously consider putting nos in your car?!? boy oh boy...

94jedi
01-06-2005, 04:29 AM
If you're going to run NO2, no matter the size of the shot, I would suggest a wet kit. You don't want to put no2 into your car and leave it up to the already tempermental ECU to decide how much fuel to add. A wet kit will inject no2 and fuel togeter. That being said, if you simply must go dry, get a ZEX kit. they seem to be the safest dry kits out there.

offroader1006
01-06-2005, 06:56 AM
a 50 shot to get you spooled up fast wouldnt be bad, compared to holding the 50 shot throughout the rpm's.

but a wet shot would be better, maybe not easier, but better.


nitrous is a good way to find out whats weak in your engine, kinda like an early diagnostic[:D]

MKGIY
01-06-2005, 07:13 AM
Do a 50 dry shot and have fun.

Mike

EVIL-AUDI
01-06-2005, 09:23 AM
Originally posted by offroader1006
a 50 shot to get you spooled up fast wouldnt be bad, compared to holding the 50 shot throughout the rpm's.

but a wet shot would be better, maybe not easier, but better.


nitrous is a good way to find out whats weak in your engine, kinda like an early diagnostic[:D]

You can't run a dry shot on a 1.8T. Only if it was going to the intercooler, not the engine. I've seen dry shots on 12V cars. Those guys need all the help they can get.

e.van
01-06-2005, 09:41 AM
Originally posted by EVIL-AUDI
You can't run a dry shot on a 1.8T. Only if it was going to the intercooler, not the engine. I've seen dry shots on 12V cars. Those guys need all the help they can get.

yes we do. [cool]

brettuzzi
01-06-2005, 11:31 AM
Having never dealt with nitrous (aside from nfs:u and u2) I'm somewhat new to the phrases, but i'm going to guess that:

Dry shot means not mixed with fuel?
Wet shot means mixed with fuel?
Direct injection means injected directly into the cylinder, not through the fuel injector?

e.van
01-06-2005, 11:45 AM
Dry shot is into the intake manifold (mixed with the air.
Wet shot is into the injectors (mixed with the fuel)

Dry shot will make it harder to get the ecu working right (on an Audi) because it has to compensate by adding extra fuel to the mixture.

Kurzer
01-06-2005, 01:34 PM
Originally posted by EVIL-AUDI
I've seen dry shots on 12V cars. Those guys need all the help they can get.


... and ... [:p]


Anyone ever toy with an A'PEXi AFC or something like it with Audi's? That might compensate enough to make a 50 shot doable?

audidood
01-06-2005, 02:34 PM
a handful of 12v owners have run a 75-shot wet setup with no problems. i never got around to that mod cuz i didn't want to worry about refilling it all the time.

if used responsibly, you shouldn't have any problems

e.van
01-06-2005, 02:35 PM
If you have a 12V, don't count on it. I was planning on doing that, and I bought the SAFC (limited new for $200) before going ahead with anything else. Couldn't find a wiring diagram anywhere (including all kinds of manuals) and from all I've heard, it doesn't work 'cause Hitachi is gay.

Kevin
01-06-2005, 04:23 PM
go on audiworld and search just dave....
im pretty sure he did a dry shot on his 2.8, dunno details

biturbo hero
01-06-2005, 07:01 PM
the 2.8L is a 12v.
you dont really need a wiring diagram do you ???
pressure switch, arming switch, a couple of solenoids, adj fuel press reg and maybe A/F gauge.

EVIL-AUDI
01-06-2005, 07:04 PM
There of course is also a 30V 2.8 aswell.

biturbo hero
01-06-2005, 07:55 PM
oh i know.
the motor in question is my buddies, a 97 with 12v.
it does need some help, but its gettin there.
H&R suspension, S4 wheels, remus exhaust, and hopefully a 50/75 shot.
ive set up a zex kit on a civic before, just looking to see if anyone had any experience on the nice german stuff...

Bigblk4
01-07-2005, 12:23 AM
Dry shot is a bad idea; more likely to have detonation. Wet is the way to go. Either way a 50 shot is safe I wouldnt go over that though as you will run into real big problems really fast. These cars are not big blocks that can handle 150+ shots.

bitterchild
01-07-2005, 10:56 PM
Originally posted by Bigblk4
These cars are not big blocks that can handle 150+ shots.

umm...

Bigblk4
01-08-2005, 01:10 AM
Let me clarify, a 67 chevelle if it decides to nitrous burp wont cause that much damage, if the same thing occurs with the audi the engine is toast (tight tollerances). 50 shot should be ok, I would highly recomend a wet kit (more reliable).

nexus
01-08-2005, 04:05 PM
Originally posted by e.van
Dry shot is into the intake manifold (mixed with the air.
Wet shot is into the injectors (mixed with the fuel)

Dry shot will make it harder to get the ecu working right (on an Audi) because it has to compensate by adding extra fuel to the mixture.

Dry is into the intake track, Nitrous only.
Wet is also into the intake track, not the injectors, but with nitrous and fuel mixed together.

I dont think a direct port setup would be to hard to plumb into a 2.8 manifold, but it's not like I've ever done it....