Nitrous question, '92 Typhoon

bdubb

I am teh kingpin!
no exhaust, alky, and external wastegate. it would stop at 20 every time. no spikes nothing. no matter what gear i was in, or what mph i was in. but the time i slamed the pedal down it was at full boost.
 

Ryan

Member
What are you using for boost control as in, what sends the signal to the wastegate? Stock boost controller, manual, electronic?
 

bdubb

I am teh kingpin!
o, whats my boost regulator? a manual boost controler. 3 bar t3-21psi chip for fueling and timing.
 

Ryan

Member
Have you experimented with setting low boost levels with using nitrous? To see if it spikes to a lower level? It would seem like you should be able to overcome the over boosting issue. What size external gate are you using?
 

SeattleSy#1255

Category 5 Conservative
I don't know much so don't flame me here, but the concept of turning down boost to use nitrous and have boost control seems to me a bit weird, or am i wacked? Why don't ya just get the moost boost you can out of your truck and tune it to perfection...then you have mass power and with scan tool and correct tuning you are running safe as could be....But what do i know, not much!
 

Ryan

Member
I wasn't recomending he turn down boost to use nitrous. I was asking if the lower initial boost level reached the same levels post nitrous as before. The reason I am asking, I believe there should be a solution to his problem of overboosting once nitrous is injected.
 

Mephisto

These trucks are cursed
you can easily run 10's with a 600hp shot of NOS on a syty, but only if you advance your timing about 90*, run rich on 87 leaded oct, and always make sure you have a full tank of turn signal fluid. Ive seen it done a thousand times.

_________________
Neal McCool
Syclone #1931 (sick)
So Cali's Slow Clone
Ashamed Member Of The 14's Club

<font size=-1>[ This Message was edited by: Cold Wind Of Death on 2002-03-21 15:10 ]</font>
 
Regarding Nitrous not (NOS) so as not to offend anyone out there. I had it installed a year and and a half ago on a motor with stock internals with all the bolt ons you could get and had fun with it. I knew the stock internals at 20psi with a 50 horse shot would not last long but the new motor was at my shop so I didn't care. Just a 50 horse shot put your eyeballs into the back of your head. It was like getting rearended standing still and the car hitting you was going 40mph.

On my new new motor with all the race internals plus all the bolt ons including the ATR wastegate and the A'PEXi cockpit boost controller, I have never had any problems with boost spikes. We have programed the A'PEXi to shut off if one does occur and have never had an issue yet. It was an interesting installation because it is designed for the little ricer cars but it works great and the data logs are very cool, plus it looks killer with my other 10+ gauges and nitrous controller. We have run 18psi and a 50 horse shot and today it will be tested at 20psi with the 50 horse shot then moving to a 75 shot then up to 100. I'm also running 110 unleaded race gas that my shop provides for me.

So until it blows up and a new monster motor is installed, GO NOS BOYS and GIRLS!!!

Tom
V8EATER
 

Ryan

Member
On 2002-03-21 16:06, Nor Cal Terror wrote:
I have never had any problems with boost spikes.

Thanks, I wanted someone else to agree that the spike problem wasn't incureable like I was trying get to.
 
Ryan;

I am glad I was able to shed some positive light on the Nitrous questions. If you would like I can give you my shops name and number and you can ask them additional detailed technical questions if that would help.

Anything for a fellow SYTY member

regards,

Tom
V8EATER

quicktruck@yahoo.com
 

jwaller

Evil Genius/SyTy Guru
tom what kind of system do you have? is it plate or port style and what size jets are you using? how are you controlling the fuel pressure and whats it set at where is your system getting fuel from?

_________________
TE-60, ATR headers, Vortecs, TCS converter, 50# chip, NOS Profogger, Built by J&G Racing

<font size=-1>[ This Message was edited by: jwaller on 2002-03-21 18:09 ]</font>
 

dgoodhue

BuSTeD 4.3
TheObiJuan said:
just thaught that i would like to get an update on this

also, anyone else tried some nitrous on there syty yet?

When the mailing list archives come back up, do a search on Nitrous, there are a lot of bad experiences.
 

4C FED

Absolutum Dominium
jwaller said:
tom what kind of system do you have? is it plate or port style and what size jets are you using? how are you controlling the fuel pressure and whats it set at where is your system getting fuel from?

_________________
TE-60, ATR headers, Vortecs, TCS converter, 50# chip, NOS Profogger, Built by J&G Racing

<font size=-1>[ This Message was edited by: jwaller on 2002-03-21 18:09 ]</font>

From the pic's I've seen and conversation I remember, Tom is using a FAST setup.
N2O is injected just before the throttle body & his MAT sensor is located upstream of the N2O nozzle.

Maybe that has changed though.
 

ttdolson

New member
I'd like some info on this subject myself.....

If someone has a proven package please post it up so we can evaluate it as a group..

I think B.G. can offers some great info on the subject if he is provided with the data.
 

Pittman

New member
Im not saying Im an expert at anything but have been tinkering with "the bottle" for about 13 years. I dont care what it is, what it does, how it runs you can always make it work. Boost is a power adder just like nitrous any time you have more than one power adder you asking for one more headache, period. You can run a turbo and nitrous, too many funnybikes are doing it. ( for you non motorcycle guys thats the funnycar of bikes) I wouldnt shoot down anyone trying it simply for that fact. You would almost have to have speedpro, some type of progressive controller for the big shots, have lots of prior knowledge of using nitrous. Our trucks can take it, its just risky. You have to plan for a serious change when the bottle hits.

1) boost will change. depending on location and type of injection.
2) it will cool the charge air plus add oxygen = double the fuel.
3) timming will need to be altered at this time
4) well I can go on and on

I plan on using a small shot once I have a block built this winter, Ill be using speedpro also. Running a turbo motor on the bottle has a much smaller margin for error. For anyone trying it and being a "pioneer" MORE power to you. Thats how we go faster and faster. If everyone sticks to the same "school" of thinking then we wont be going anywhere....

IM not trying to piss anyone off or start a fire on here.
 
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