I been running a 75 shot for about 6 months and i would like a little more. If I wanted to run a 100 shot on my 3.5L would it be more trouble than it worth? Any percautions that I would have to do? Thanks for your advice.

 

J&S safeguard

 

What does J&S safeguard mean?

 

http://www.jandssafeguard.com/


I just wnat to know how one sets this up to work.

 

Its like $500
Just spoke to the guy.

Installation

1. The unit must be installed in the passenger compartment.
2. Cut the six coil drive wires at a convenient point. Install the adapter terminal block as shown, between the cut ends.
3. Connect the SafeGuard to the adapter as shown, using the six conductor cable supplied in the kit.
4. Connect the J&S Red wire to a switched power source. Note that 12v must be present during cranking and running.
5. Connect the J&S Black wire to chassis ground.
6. Connect the "clear" wire of the J&S knock sensor cable to the factory knock signal wire. Tap the signal near the ECU, to avoid cutting though the shield on the factory knock sensor cable.
7. At a convenient point, cut the 1/8" nylon tubing that feeds the vacuum/boost gauge. Install the supplied brass compression tee fitting in line.
8. Connect one end of the supplied vacuum hose to the brass tee, and route the hose to the back end of the J&S unit. For now, plug the hose.

 

Thats great and all, but aren't there people running a 100-shot without a J&S?



I'm cheap and don't want to spend $500 on that thing.

 

You pay to play

 

you dont need J&S for a little 100 shot. Just get on the dyno and make sure the a/f is safe and your good to go. I ran a 100 shot in my 02 for 4 months without any engine problems, and since you're a 6 speed you shouldn't have any tranny problems either.

 

clutch.. I dont think its a good idea to run more than 35 on stock clutch in a 3.5, or so I have heard.....

 

I don't understand where you guys get these numbers from...SR20DEN has ran a 175 shot on the stock clutch and it held just fine. Right now hes making about the same power all motor as a regular bolt on with a 35 shot Maxima would and his car has made dozens of passes and even survived some 4-5k clutch dumps on slicks.

 

Seriously, I've got the major bolt-ons and a 75shot, clutch is a champ. Holding enough power to put 340tq to the dyno

 

From the same place that tells you that you need a J&S for a 100-shot

 

I pushing somewhere around 110+ hp above stock with a 75 shot and my clutch seems fine. I have about 45000 mile on my max, even if my clutch goes around 60,000 it is worth it me for all the fun I have driving my car. Replacing my clutch every 60,000(even if it is a OEM one, no aftermarket ones yet.) is a relatively small price to pay for beating a Vette with a Nissan Maxima!

 

[QUOTE=ajsince81(even if it is a OEM one, no aftermarket ones yet.) [/QUOTE]

I was mistaken there is at least one aftermarket clutch for my year. Sorry for the wrong info.

 

When asked how much n2o a 3.5L clutch can handle I was told 35 no prob, after that it's not a good idea if you run it a lot. Now I no longer have a 3.5L but I do have the transmission from one in my 3.0L so I dont really know for sure just what I have been told. I do have n2o sitting at home so I'm interested. Also it's hard to believe that a stock clutch will hold 175 shot without problems. Again, I am not speaking from experience.

 

once again false info is getting spread around this place bc of what you heard from someone. I personally know the guy that was running the DP 175 shot and his clutch held just fine so I guess Im speaking from experience not just what I believe. So who told you all the stock clutch could hold was a 35 shot and where did they get this intelligent info?

 

I think this TOPIC should be in the Stickies this is a common question.

I think we should make a list of All Gens on how big of a shot we could handle stock.

ATT... Moderators

 

How many times has he done it, and was it slipping or not. If you didn't run it yourself then you are not talking from experience. Did you atleast see it?...

I got this info from this forum when I asked it a while back

 

ummm it was SR20DEN....he actually blew the motor and the clutch was holding just fine. I've ridin in the car 7324987432 times I think I know what clutch slip is and feels like. So people don't start thinking you will blow your motor running nitrous just search around, the reason his gave way bc of a huge shot of nitrous, stock plugs and timing.

 

Bottom line is every car is different!

You need to check/pull the plugs and see if they are running normal. Then get on a dyno and check air/fuel ratios. With a 100 shot I would reccomend upgrading the fuel pump.

 

Well I'll add to this...I just installed a 65 shot and my clutch started slipping pretty bad already. The clutch has less than 10K on it, but it's not quite as good as an OEM clutch, so that may explain part of why it's slipping so badly. The 6 speed tranny is different from the 4th gen tranny, but I also find it hard to believe it holds a 175 shot. I do believe it did happen, it just sounds too good to be true. Matt is a lucky guy. That is probably putting out more than 250 tq just from the nitrous!

 

I'll just quit giving information out to you guys. I know someone who has done it, 100 shot is nothing for a 6 speed to handle and with a walbro in tank pump it will be safe as you can get. No matter what I say people will come in here saying I heard this or my car did this when its not even the year this guys asking about. Im sure 95% of the time is operator error anyway "I sprayed at 2k rpms in 5th and my car blew up what happened?" Im done here.

 

I guess all of you didn't catch the part where this guys been running a 75 shot for 6 months with no problems? I guess he will just blow it up adding a little bit more, wait I thought someone in here said they heard the stock 6 speed could only handle a 35 shot? Whoa this guys car is a freak.

 

What's with the attitude man? I said I believe you, it's just rediculous that the stock clutch can hold 500 tq. Like I said, my clutch, with 10K on it, can't even hold a 65 shot. You can tell me I didn't use it correctly, but I don't see what's wrong with spraying in 2nd gear at 35 mph. My clutch seriously didn't even catch 2nd for a second...it just slipped up to 6000 rpm. Sounds like this stock clutch can't handle it. Matt is a lucky man, and I hope his luck continues.

 

Well if people would read he is asking about a 3.5L Maxima not a 3.0 4th gen. He also has been running a 75 shot with no problems for 6 months, so why even chime in about your bad luck with your 4th gen clutch on a 65 shot? Its a different car and the 3.5 makes a lot more torque than the 3.0 stock, not to mention its a different clutch from the factory.

 

In the past Nissan clutches have been horrible and usually would not hold anything past a 75 shot. But the new clutches with dual mass flywheels are different. The stock clutch on a VQ35 will hold over 400 crank torque as long as the user doesn't burn it up from over slipping it.
This is also the only stock Nissan clutch I have seen that will allow a 6600rpm dump in second gear from a dead stop.

You also don't have to have a J&S to run a 100 shot. I do however recommend using colder plugs and a rpm window switch to on/off the nitrous at select rpms.

 

Ok, great. I guess I shouldn't have given any input.

Thank you SR20DEN for clarifying the differences between the two.

 

175 shot? Jesus, ever tried that in the 1/4 mile? That's what, 380-400whp with your setup?