relays and nitrous

littleredr/t · Post by **littleredr/t** » Thu Feb 05, 2009 12:37 am

so i am currently at the moment running a 50 shot but i want to go bigger like a 100 shot i was wondering if relays make the difference in how much you can put threw your car without backfires? it may be a dumb ? but just wondering

1HotNeon · Post by **1HotNeon** » Thu Feb 05, 2009 10:13 am

Relays??? What do you mean???

ive run as much as a 75 wet shot on my old 2.0l DOHC....and that was with a Mopar Performance PCM....no timing retard!

I wouldnt spray a 100shot on a stock motor tho!!!

Get some colder plugs and run 93 octane....bump that bad boy to a 75shot!!! Trust me, youll like it.

littleredr/t · Post by **littleredr/t** » Thu Feb 05, 2009 1:46 pm

1HotNeon wrote:Relays??? What do you mean???

ive run as much as a 75 wet shot on my old 2.0l DOHC....and that was with a Mopar Performance PCM....no timing retard!

I wouldnt spray a 100shot on a stock motor tho!!!

Get some colder plugs and run 93 octane....bump that bad boy to a 75shot!!! Trust me, youll like it.

its not stock at all lol i have the colder plugs and all of that i ran a 50 already and a 75 im trying to go more for the summer ill have crane 16s with 10:5.1 compression pistons i really want to push the limit and run a 125 when its all done. but what i was saying about the relays is would that give more power to the solenoids so they can pump harder. i might be wrong but i think thats why im not able to runn a 100 shot, cause im over powering the sloenoids i dont know if that makes sense plz help i want to be in the 12s this summer lol

1HotNeon · Post by **1HotNeon** » Thu Feb 05, 2009 2:11 pm

Change out the jets then to make it a 100/125 shot then lol....AFTER you get that bottom end built of course.

What are you using for timing retard?? What kit do you have??? Wet or Dry???

You dont need relays man...its the jet sizes that determine how much nitrous sprays a.k.a. your "shot", ive never heard of overpowering solenoids before.

littleredr/t · Post by **littleredr/t** » Thu Feb 05, 2009 3:18 pm

ive tryed to run a 100 shot already but everytime i do i get a nitrous backfire im still on stock cam gears but i will have adjustables soon, im not running a mopar pcm because you have a better chance of detanating from what im told. my buddy ran the same set up on a sohc with stock bottom end on a 100 shot and never had a problem. im trying to figure out what is causing it to back fire on a 100 shot.

keep them coming guys thanks

littleredr/t · Post by **littleredr/t** » Thu Feb 05, 2009 3:18 pm

and the kit is a wet shot

1HotNeon · Post by **1HotNeon** » Thu Feb 05, 2009 3:47 pm

Ok well no Mopar PCM is a plus...its good your using the stock pcm.....what are you using for plugs??? What are they gapped too?? when you sprayed that 100 shot did you have fresh plugs in??

misfit4life · Post by **misfit4life** » Thu Feb 05, 2009 10:52 pm

i would suggest retarding your timing for 100 shot. the stock timing may be why your backfiring when are you fireing off. i wouldnt spray until 3000

littleredr/t · Post by **littleredr/t** » Fri Feb 06, 2009 11:06 am

ive herd when you retard the timing you will blow up and i put fresh champion 2 steps colder plugs in the day i tested at the stock gapping for the neon. i just dont get it i can run a 50 and a 75 all day long with no problems but when i put the 100 in all there is after shifting into second is BOOM, and when ever i run the nitrous i hit it at 3500 rpms, i was thinking mabye its starving for fuel, would injectors make this happen? im just confused and throwing any possible thing that might cause it to happen.

1HotNeon · Post by **1HotNeon** » Fri Feb 06, 2009 1:21 pm

No no no....if you DONT retard the timing you will blow up!!! you need to retard the timing man!!!! Zex recommends 2 degrees retard for a 65 shot....and 4 degrees retard for a 75 shot. Lord knows what degree for a 100 shot. I would not try spraying your car again on a 100 shot until you get some kind of timing control!! Also, gap your plugs to .032.

DOHCRT · Post by **DOHCRT** » Fri Feb 06, 2009 7:03 pm

If you have a DOHC engine, you can swap in a SOHC PCM to reduce total timing a little bit. This is a low-cost way of reducing total timing, but you will give up a few hundred RPM from the rev-limiter (not a big deal with stock cams).

If you don't have a wideband to monitor your AFR's while spraying, stop now. Get a wideband before you go any further.

Nitrous users must follow many of the same principles as turbocharging requires. Proper timing and proper air/fuel ratio is extremely critical in either application.

littleredr/t · Post by **littleredr/t** » Sat Feb 07, 2009 11:11 am

im not spraying it right now lol its winter here. it will be cammed spring time just have to finish the head right now i dont want to go with a sohc computer cause i dont want to loose those rpms they really help when your running on a 355 tranny lol. and what would be the best plug to go with for that im on 2 steps colder champion plugs right now. thanks for helping me guys keep them coming im learning more and more from you guys

INVUJerry · Post by **INVUJerry** » Sat Feb 07, 2009 1:25 pm

A crane box would be your best bet, honestly. You can pull timing and spray nitrous safer. Be sure to read your plugs.

littleredr/t · Post by **littleredr/t** » Sat Feb 07, 2009 7:33 pm

thats what i was thinking about doing, just cant afford it right now got to get the motor done.

1HotNeon · Post by **1HotNeon** » Tue Feb 10, 2009 8:33 am

littleredr/t wrote:im not spraying it right now lol its winter here. it will be cammed spring time just have to finish the head right now i dont want to go with a sohc computer cause i dont want to loose those rpms they really help when your running on a 355 tranny lol. and what would be the best plug to go with for that im on 2 steps colder champion plugs right now. thanks for helping me guys keep them coming im learning more and more from you guys

When i was spraying, i was using the ZEX Nitrous plugs...look into those (www.zex.com)