Nitrous Oxide Installation | Tuning | Products
Sponsored by:
Sponsored by:

Dry shot tuning question

Thread Tools
 
Search this Thread
 
Old 06-11-2012, 01:57 PM
  #41  
11 Second Club
iTrader: (2)
 
hardcore's Avatar
 
Join Date: Jul 2002
Location: Jax Fl
Posts: 167
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by ShiznityZ28
We have ran dry for a while. I didn't read all you posts. there were others who said switch to wet and it won't work. It will and can. Any type of kit over 200 you should know what your doing or at least your tunner should .Theres alot of bad info out there nd people take it as gospel.

your car is fast just i would try not to come of as the end all be all. we went 8's with our street ls1's on stock computers 4-5 years ago.
I really wasn't trying to do that.. Just trying to help someone out.
I do a lot more reading on here than i do posting.. but I have had a lot of experience with LS1 tuning and dry kits...
When ever you tell some one your running a dry kit all think you do is spray though the MAF and alls good.
or if you really want to make it fast you need a wet kit.. both are not 100% accurate.
Not making exusess.. But a IRS Full body car isn't ever going to the fastet kid on the block,
I did had a 2001 Z28 for a few years but it wasn't until I got the GTO that I was able to get a little more serious..
Old 06-11-2012, 02:01 PM
  #42  
TECH Addict
iTrader: (11)
 
ShiznityZ28's Avatar
 
Join Date: May 2002
Location: GB MD
Posts: 2,554
Likes: 0
Received 1 Like on 1 Post

Default

I just read some more. we stopped using the maf ~ 200. dry speed density is what we were using on the big hits.
Old 06-11-2012, 02:13 PM
  #43  
TECH Addict
iTrader: (11)
 
ShiznityZ28's Avatar
 
Join Date: May 2002
Location: GB MD
Posts: 2,554
Likes: 0
Received 1 Like on 1 Post

Default

now we use fast on an Alpha-n dry.
Old 06-11-2012, 05:03 PM
  #44  
11 Second Club
Thread Starter
iTrader: (3)
 
its turbo time's Avatar
 
Join Date: Jan 2007
Location: wentzville, MO
Posts: 914
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by ShiznityZ28
I just read some more. we stopped using the maf ~ 200. dry speed density is what we were using on the big hits.
So is a 100 shot okay premaf? Im not going bigger than that.

If so, would you recommend a n20 tune or will maf compensate with my current tune that i believe is 12.8 afr
Old 06-11-2012, 05:44 PM
  #45  
On The Tree
 
hotrodth's Avatar
 
Join Date: Mar 2011
Location: jax, fl
Posts: 161
Likes: 0
Received 0 Likes on 0 Posts
Default

If you are 12.8 now na and u spray 100. I'm almost sure you will be a little on the lean side. I would just get it tuned bro. Just not worth the chance.
Old 06-18-2012, 11:01 PM
  #46  
TECH Addict
iTrader: (11)
 
ShiznityZ28's Avatar
 
Join Date: May 2002
Location: GB MD
Posts: 2,554
Likes: 0
Received 1 Like on 1 Post

Default

at least log the run and see whwre its at .the fueling is probably going to be ok. but id like to see the plugs on any n20 car not just dry cars.
Old 09-24-2012, 08:28 AM
  #47  
Teching In
 
2boyss's Avatar
 
Join Date: Jan 2012
Location: MICHIGAN
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default

Ive also been spraying my ls1 dry pre maf for a long time and never had a issue, just make sure your tune is right.
Old 12-09-2012, 05:56 PM
  #48  
Launching!
iTrader: (-2)
 
PaSteLaSo4U's Avatar
 
Join Date: Jan 2011
Posts: 214
Likes: 0
Received 0 Likes on 0 Posts
Default

nice read, ive been running a 75 dry w/ no issues, other than after i swapped from tr6's to br7s and now on a 100 hit she runs too rich @10.4-10.7ish
Old 12-09-2012, 08:46 PM
  #49  
11 Second Club
Thread Starter
iTrader: (3)
 
its turbo time's Avatar
 
Join Date: Jan 2007
Location: wentzville, MO
Posts: 914
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by PaSteLaSo4U
nice read, ive been running a 75 dry w/ no issues, other than after i swapped from tr6's to br7s and now on a 100 hit she runs too rich @10.4-10.7ish
Are you using a nozzle or spray bar?
Old 12-09-2012, 09:05 PM
  #50  
11 Second Club
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

What about with the 85mm MAF, are these at same risk if any, than the stock Ls1 spraying pre MAF?

Ive been trying to hook up an HSW module and havent been able too. What timing devices is everyone using now?
Old 12-09-2012, 09:48 PM
  #51  
Launching!
iTrader: (-2)
 
PaSteLaSo4U's Avatar
 
Join Date: Jan 2011
Posts: 214
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by its turbo time
Are you using a nozzle or spray bar?
nozzle
Old 12-10-2012, 10:41 PM
  #52  
11 Second Club
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

How true is this?...

http://www.installuniversity.com/ls1...g-tricker.html
Old 12-11-2012, 02:06 AM
  #53  
12 Second Club
iTrader: (2)
 
Brett H's Avatar
 
Join Date: Feb 2003
Location: Belle River, Ontario, Canada
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by LASTOFTHEBREED02T/A

That mod works but the resistor value advances timing, thats not what you want to do with a nitrous set up.
I have run it like that the track rather than wire in a relay and it worked well. Now I just have my retard worked into the tune.
Old 12-15-2012, 01:47 AM
  #54  
11 Second Club
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

What about disconnecting the AIT sensor completely, would that retard timing? Also, if only spraying a 36 zex pill which comes out to be like a 35-40 hit. Would this hurt the my engine in any way, given i spray pre maf.
Old 12-15-2012, 03:05 AM
  #55  
12 Second Club
iTrader: (2)
 
Brett H's Avatar
 
Join Date: Feb 2003
Location: Belle River, Ontario, Canada
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts

Default

I think if you just disconnected the IAT it would throw a code.
You would likely be okay with a small shot on stock timing but every car is different. I have run a 50 shot on 28' but watching AFR and reading plugs has to be done with any size N2O shot IMO.
Also what size injectors are you running? With the mods in your sig, stock injelpctors may already be max'd out.
Since Pat G. Tuned it, PM him and see what he would advise.
Old 12-15-2012, 03:27 AM
  #56  
11 Second Club
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Brett H
I think if you just disconnected the IAT it would throw a code.
You would likely be okay with a small shot on stock timing but every car is different. I have run a 50 shot on 28' but watching AFR and reading plugs has to be done with any size N2O shot IMO.
Also what size injectors are you running? With the mods in your sig, stock injelpctors may already be max'd out.
Since Pat G. Tuned it, PM him and see what he would advise.

Everyone I've asked about the small shot tells me it shouldnt be a problem... But thats theory, i want to know from those who have actually done it. My Inj, arent max'd out yet and they are the stock 28.8#. Just want to know if pre Maf will really compensate for fuel, since i wont need to retard timing on such a small shot.

Last edited by LASTOFTHEBREED02T/A; 12-15-2012 at 01:53 PM.
Old 12-15-2012, 11:10 AM
  #57  
12 Second Club
iTrader: (2)
 
Brett H's Avatar
 
Join Date: Feb 2003
Location: Belle River, Ontario, Canada
Posts: 547
Likes: 0
Received 0 Likes on 0 Posts

Default

Do you have a way to log data with HPT or other tuning software?
With your mods I would bet the 28.8's are max'd. I max'd mine with just bolt ons. Keep in mind that rule of thumb is not to run an inj. past 80% DC.
I currently have 36 lbs inj. and push them past 80% DC on a 100 dry shot. I should go to a 42 or higher but don't want to go through the trouble of turning and scaling injs. again so I am basically taking the chance on running lean but feel confident my tune is dialed in.
Also remember that the stock fuel pump will only support up to about 450 rwhp.
Would you be safe as is with only a 40ish hit, yes likely, but I just want to make you aware of the possible issues and what to look for.
Bottom line is that with any nitrous jetting, logging or monitoring AFR's and having someone with experience read your plugs are the 2 most important ways to ensure a safe nitrous tune.



Quick Reply: Dry shot tuning question



All times are GMT -5. The time now is 07:32 PM.