Hypertech and Nitrous questions..

[AllTheGoodNamesAreGone]

Ok.. So.. I am running the hypertehc premium fuel (93) tune right now.. i like it.. definatly feal a little more power out of it..

anyway.. i know its a HUGGGE no no to spray and use tuning..

however.. i only want to spray a little.. a verry little.. like.. probably 15-20HP shot from an NX incognito kit.. probably only in third gear..

my car runs a little rich.. and i want to take advantege of that extra fuel with the small shot of nitrous..

anyone want to make a clear and backed objection about why i shuld not do this??

[WickEdSix9838]

because soon, 15-20 turns to 25-50 turns to 75-100, etc. etc...the Hypertech adds timing and with nitrous you need to retard it because the combustion process goes much quicker so u need the spark to occur later, if the timing is still there you start detonating and melting pistons...

[AllTheGoodNamesAreGone]

nahh.. i will do 10-25 depending on what pills i get with the kit.. and stick with it..

i meen.. its a dry shot.. so.. the computer "shuld" compensate for the changes to some extent..

any other takers?

[CockyV6]

<blockquote>quote:</font><hr>Originally posted by AllTheGoodNamesAreGone:
nahh.. i will do 10-25 depending on what pills i get with the kit.. and stick with it..

i meen.. its a dry shot.. so.. the computer "shuld" compensate for the changes to some extent..

any other takers?<hr></blockquote>

Yeah,.........

Those are some famous last words right before you either foul your plugs or gunk up your injectors.

[ReodDai]

The computer doesn't know how to compensate timing like that. He said it would make combustion happen quicker. Take the hhp3 programming off and buy a maft+.

[Arctc Wolf]

I'd say that u could run 87 programming w/ 91-93 fuel and still be ok. the higher octane has higher resistance to burn, slowing it down enough for 87 tuning.

[AllTheGoodNamesAreGone]

<blockquote>quote:</font><hr>Originally posted by Arctc Wolf:
I'd say that u could run 87 programming w/ 91-93 fuel and still be ok. the higher octane has higher resistance to burn, slowing it down enough for 87 tuning.<hr></blockquote>

hmmm.. interesting idea..

[AllTheGoodNamesAreGone]

james.. do me a favor and let me know what you think when you get back..

thanks man!

others are also welcome to put up some feedback.. just looking for opinions..

[John_D.]

Ok, here's the deal... Nitrous can only take so much timing advance. The hpp3 advances the timing even more than stock.

You might be able to get away with a small shot, it just depends. The best way to tell is to monitor your knock retard, before spraying. If no kr before spraying, you might be able to run a small shot. Definitely monitor the kr while spraying, if you go this route.

The pcm will pull timing if it detects knock. So even if you run too much timing, the pcm will protect you, up to a point. And if you monitor it, you will see if you're running too much. But the pcm will only pull so much (I've seen 10 degrees of kr on my car). If you need more timing pulled than that, the pcm probably won't cover you. Excessive timing advance creates the same effect as beating on the top of the pistons with a hammer. They'll take it for a while, but will crack at some point.

Also, if the pcm pulls timing, it will take out more than necessary, then slowly start adding it back in. Having the pcm pull timing when it detects knock will hurt performance because it takes so much advance out.

You won't even feel a difference running only a 20hp shot. And 4 degrees of kr will take away 20hp. Then you'll want to go bigger,and that's where the trouble will start... [img]smile.gif[/img]

[CAMAROWIDBASS]

<blockquote>quote:</font><hr>Originally posted by AllTheGoodNamesAreGone:
nahh.. i will do 10-25 depending on what pills i get with the kit.. and stick with it..

i meen.. its a dry shot.. so.. the computer "shuld" compensate for the changes to some extent..

any other takers?<hr></blockquote>


yes but what if it doesnt? Kaboom?

[AllTheGoodNamesAreGone]

Hmmm.. yeah thanks for the insight yall..

I dunno.. seeing that the new software is an option..

I dont think i am gunna do this now..

with tuning i feal motovated to step up to bigger and better things..

but thanks alot of the insight.. and jonh that was a helpfull little explanation you gave me..

i did a-tap it today.. and i think i can pull it off.. but.. better to be safe then sorry..

[12secondv6]

<blockquote>quote:</font><hr>Originally posted by WickEdSix9838:
because soon, 15-20 turns to 25-50 turns to 75-100, etc. etc...the Hypertech adds timing and with nitrous you need to retard it because the combustion process goes much quicker so u need the spark to occur later, if the timing is still there you start detonating and melting pistons...<hr></blockquote>


Yup, what starts as a small shot soon raises up.

Not worth the potential problem.

I wouldn't chance it and I've blown up a couple times [img]smile.gif[/img]