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Nitrous question.

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koby686

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« Reply #50 on: August 16, 2016, 08:13:38 PM »

Stock GM hypereutectic pistons. Completely stock lower end with arp rod bolts

Different animal though. I'm running a LS engine
yeah no doubt.


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steves86ta

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« Reply #51 on: August 16, 2016, 08:14:53 PM »
Fwiw I think a small shot like a 125 would be fine. But I'm not an expert
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koby686

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« Reply #52 on: August 16, 2016, 08:18:07 PM »
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steves86ta

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« Reply #53 on: August 16, 2016, 08:19:39 PM »
So long as your fuel delivery is good and you pull timing
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jimpen

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« Reply #54 on: August 16, 2016, 08:30:26 PM »
A few things to do when running NOS

1. Make sure your engine is built to handle the shot you plan to run.

2. Make sure you are using the proper size jets and spread.

3. Make sure you have correct spark plugs and the gap is set for NOS.

4. Use a flow gauge to flow your fuel. Remember heat will change the gauge reading on your flow gauge. Check it every couple times you use it. Regulators move and filters change flow rates.

5.  Timing is very important most pull two degrees per 50 hp of shot. I'm pulling more then that for my setup. Make sure your retard is working without NOS.

6.  Make sure your fuel fits the needs of your compression and shot size.

I would never tell anyone there setup would be good for a shot of any size. There is so much that goes into the decision for a setup with Nos. it's not that I would not like to help guys it's because I would not be able to sleep. I small mistake and thing go bad quick even with good info.  NOS done right is pretty safe but any type adders are tough on equipment in large doses.

**** don't take short cuts


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69kona

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« Reply #55 on: August 16, 2016, 08:43:57 PM »

A few things to do when running NOS

1. Make sure your engine is built to handle the shot you plan to run.

2. Make sure you are using the proper size jets and spread.

3. Make sure you have correct spark plugs and the gap is set for NOS.

4. Use a flow gauge to flow your fuel. Remember heat will change the gauge reading on your flow gauge. Check it every couple times you use it. Regulators move and filters change flow rates.

5.  Timing is very important most pull two degrees per 50 hp of shot. I'm pulling more then that for my setup. Make sure your retard is working without NOS.

6.  Make sure your fuel fits the needs of your compression and shot size.

I would never tell anyone there setup would be good for a shot of any size. There is so much that goes into the decision for a setup with Nos. it's not that I would not like to help guys it's because I would not be able to sleep. I small mistake and thing go bad quick even with good info.  NOS done right is pretty safe but any type adders are tough on equipment in large doses.

**** don't take short cuts


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Very well said ....





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koby686

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« Reply #56 on: August 16, 2016, 09:04:56 PM »
Thanks for the input Steve, Jim, onthenos, phill, 69kona and everyone else it's highly appreciated. I think I'm going to sell the NOS kit and not risk messing up my motor for an extra couple MPH since when I built it I did not have NOS or boost in mind so went with the cheaper route on Pistons, which looking back now I would spend the extra $600 to have them forged. All is good live and Learn!

It's Time to put money into the pump.


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chadchad09

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« Reply #57 on: August 16, 2016, 09:08:36 PM »
Any pictures of the kit and a price?

steves86ta

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« Reply #58 on: August 16, 2016, 09:10:48 PM »
Power is in the pump
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koby686

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« Reply #59 on: August 16, 2016, 09:12:44 PM »

Any pictures of the kit and a price?
The kit is brand new i opened the box took the bottle out cut open the packaging with the instructions in it and the rest stayed in. I paid $450 for it. I will take $400 got it on Saturday.




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koby686

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« Reply #60 on: August 16, 2016, 09:13:30 PM »
This is the kit

https://m.summitracing.com/parts/nos-05001nos


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GT Jets

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« Reply #61 on: August 16, 2016, 09:13:39 PM »
Thanks for the input Steve, Jim, onthenos, phill, 69kona and everyone else it's highly appreciated. I think I'm going to sell the NOS kit and not risk messing up my motor for an extra couple MPH since when I built it I did not have NOS or boost in mind so went with the cheaper route on Pistons, which looking back now I would spend the extra $600 to have them forged. All is good live and Learn!

It's Time to put money into the pump.


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Extra $600? Did you get the hypers for free?

I built two engines using hypereutectic pistons, one was a stock 454 used in a 1 ton dually,  as far as I know,  it's still pulling horses all over the country.

The second was a small block we used in the race boat for testing. When that motor let go at about 5,500 rpm, it took out everything.

Pistons literally exploded,  killed the crank,  block, cam, heads rods,  there was nothing left.

Never again in a high performance application. I "saved" $180 over forged. It cost a complete motor.

Be nice to it,  keep it tuned correctly and it will likely run forever.

JMHO

GT
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Time to man up and yank it John!  :banghead:
Ray

koby686

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« Reply #62 on: August 16, 2016, 09:20:02 PM »
I paid $500 for these Pistons I belive the forged ones we were looking at were double the price.

Glen didn't you say you wouldn't put hypers In a golf cart haha that ole dually is a bit bigger 😉


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AnthonyH3

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« Reply #63 on: August 16, 2016, 09:38:03 PM »

Power is in the pump
👍👍👍👍


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GT Jets

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« Reply #64 on: August 16, 2016, 10:09:49 PM »
I paid $500 for these Pistons I belive the forged ones we were looking at were double the price.

Glen didn't you say you wouldn't put hypers In a golf cart haha that ole dually is a bit bigger 😉


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Wouldn't put them in a golf cart knowing what I know now.

I just bought a set of Mahle forged 496 pistons for $692 shipped to my door. Set of 9.

Rings sold separately,  but Spiro locks and pins included.

FWIW

GT

GT
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koby686

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« Reply #65 on: August 16, 2016, 10:34:44 PM »
I wish I had known. I know the ones we were looking at were in the $1200 range. Gotta remember it's a ford so everything is double the price of Chevy..


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GT Jets

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« Reply #66 on: August 16, 2016, 11:00:53 PM »
Just checked,  460 Mahle forged pistons,  $713 with iron rings....

FWIW
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« Reply #67 on: August 17, 2016, 06:46:21 AM »
Glen your making it harder for me knowing I could have spent $200 more hahaha..


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« Reply #68 on: August 17, 2016, 04:17:19 PM »
I seriously can't believe you guys all just scared this guy bad enough to sell his new nitrous kit, I understand the concerns if it was a big kit but we're talking about a 125 shot here, I'd have no problem running that on ONE pump , backing out timing and go for it!! I didn't plumb 2 fuel systems to my old drag car till I put 300 pills in my plate... I ran a 175 off the mechanical holley hi volume with a cast piston 461 forever and never hurt it!! To each their own I guess... good luck..

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Racesbc4life

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« Reply #69 on: August 17, 2016, 05:50:23 PM »
I 2nd that.....

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« Reply #70 on: August 18, 2016, 08:31:52 AM »
I seriously can't believe you guys all just scared this guy bad enough to sell his new nitrous kit, I understand the concerns if it was a big kit but we're talking about a 125 shot here, I'd have no problem running that on ONE pump , backing out timing and go for it!! I didn't plumb 2 fuel systems to my old drag car till I put 300 pills in my plate... I ran a 175 off the mechanical holley hi volume with a cast piston 461 forever and never hurt it!! To each their own I guess... good luck..

 Your friendly local v-drive owner

A car is a completely different animal all together. Nice warm cylinder temperatures,  short bursts under acceleration.

It only takes one missed step or problem and those pistons will be in the pan.

Did you know you can break a hyper piston skirt with your bare hand?

Even the manufacturer said 50hp max.

Not warning him would have been a disservice.

JMHO.

koby, if I caused you disappointment,  I totally apologize. I was just telling you what I would or would not do.



GT
« Last Edit: August 18, 2016, 08:35:05 AM by GT Jets »
  • Boat #1: 1992 Carrera 20.5 Elite (I/O bitches)
  • Boat #2: 19' Bubble deck Jet BBC Berkeley
If i get some free time tonight at work, ill play with it and post it for everyone to see.

Time to man up and yank it John!  :banghead:
Ray

koby686

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« Reply #71 on: August 18, 2016, 12:20:03 PM »
Glen not at all, I'm glad you guys said what you said. I would have been disappointed if my 6k engine took a shit just because I hit with with some spray. Rather know it's turn key and enjoy it having to worry about my boat all last summer before the engine took a shit took the fun out of going for me. M


So thank you guys for the heads up, rather be safe then sorry to gain 3-5 MPH


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« Reply #72 on: August 19, 2016, 03:19:42 PM »
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