Will I need a tune to go with a dry kit or is it plug and play? The reason I ask is the halo kit is really starting grow on me.

 

What are your current mods?

Normally you don't really need a tune except maybe pulling a little timing. Depending on your mods you may need new injectors (not a bad idea anyway) and a better fuel pump. New injectors WILL require a tune.

 

if you're close to stock like me then a tune isn't really needed for a small dry shot. I will have mine tuned and have the timing pulled back a little just to keep it as safe as I can.

 

Mine is basically stock also, just took 2 degrees timing out, does great!

99 Z28 A4; lid, maf, diablo tuner, 150 nos dry kit, 3.73 gears: 1.52 60ft, 7.30 1/8th, 9.42 1000ft

 

I don't have anything major done to the car. Just a airlid and pulley. I understand I need to take the MAF screen out but I read that can cause some issues for automatic cars. You read so much stuff on here sometimes you don't know whats true and whats not.

I do plan on getting some tuning done later but thats after injectors and a new pump. I'm gonna be low on cash after buying the kit and I was just trying to get some fun out of it before the next wave of upgrades : )

 

Desceening the MAF will generally cause no i'll effects. The 'porting of the MAF is
what usually causes A4 problems. I've never seen an A4 suffer from desceening.
Hawk

 

I ran a 100 dry shot for nearly a year without a tune on a full bolt-on car.

As for descreening your MAF, when I was looking into nitrous most told me to not remove the screen, something about the way the nitrous flows over the wires in the MAF would be less accurate.

I'm not saying you cant do it, my bother-in-law sprays a dry shot with no MAF screen with no problems so far. Just passing on some info I was told

 

If you don't remove the MAF screens the N2O will ice up on it and cause you a big power loss.
You definately don't have to pull any timing with a dry system.
Tuning can be done in the PCM, or simply by adjusting the distance between the nozzle and the MAF wires. Closer is richer & less timing.

Most dry systems work fine with no adjustments at all, but there is always room for some improvements to match your combo.

 

Freezing to the MAF Screen? I've never heard of this problem mentioned before??

 

you guysa are all confusing me. you're not supposed to remove the screen- because of the way the nitrous gets slowed down going over the screens? and the closer the nozzle, the richer?

 

remove the screen just don't port it out cause that causes problems with the way the car shifts. as for no tuneing i've heard after 100 you need to pull 2 degrees per every other 50 hp (150hp=2 degrees)

 

Is it bad on the noids to not be used over a period of time… like a couple months?

 

never had a problem with mine just yet and i've had the kit in for 2 winters

 

Small dry shots and stockish tune, a match made in heaven. yes remove screen, I have on autos and never had a hiccup.
Robert

 

Any common problems if you do not remove the screen? SLP charged my butt off for their MAF and I'd hate to remove any of that 'precious metal' that I had to pay for if I do not have to.

Do I need to de-screen the stock MAF and throw it back on there?

James

 

see above quote

 

Well I have a lid and full exhaust...see sig. I run the NOS 5177 kit jetted for a 125 shot. I have the MAF screen still in, and I am on the stock tune. She made 438/504 like this and the A/F ratio was safe according to the wideband readings.

 

Because you have not had an issue, doesn't mean you won't. Pull your screen as per standard procedure.
Robert

 

what other tips for dry tuning? should i check the injectors performance on occasion?

 

Hmmmm, see the reason that I didn't descreen the MAF is because it has been said more times than I can count to leave the stock MAF untouched.

I did however on my previous car before hearing all of the talk about leaving it alone, descreen the MAF on my A4 car. I honestly never saw any adverse effects from doing so. Maybe I will CAREFULLY remove it, cause if done so with care it can be reinstalled sucessfully.