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Drivetrain Questions about M7 Nitrous installs

Old Sep 19, 2005 | 07:05 PM
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Questions about M7 Nitrous installs

From what I understand in posts here, and from product literature at M7, the kit is a dry kit, shooting only the nitrous stream directly into the manifold.

I want to keep my '05 in as close to stock trim as possible (both for stealth and for removing mods if need be). Has anyone experimented with running the nitrous line in such a manner so that no external hole needs to be drilled in the manifold? After seeing the supercharger and intercooler diagram, I'm guessing no, but maybe there's a small place to tap into under there someplace?

I've used nitrous for years on my mustang before converting to a supercharger. But now I'm eager to get back in the game with the Mini!

If anyone has photos of their install, especially of the controller box on the interior, please post up.

Can someone explain this kit in detail (maybe Peter himself), as this kit seems to be only one made for the Mini specifically.
 
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Old Sep 19, 2005 | 08:56 PM
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Hi Stylin.....

The M7/Venom, is indeed the only N2O system that is designed around
the MINI. The hp gain can go from mild (30hp) to stunning (100+) with the security of the our computer module....

Here's a link to more info: http://www.m7tuning.com/products/nitroussystem.htm

And feel free to call me with any questions you might have.

peter
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562-608-8123
 
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Old Sep 20, 2005 | 10:23 AM
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Thx Peter. I've already read that. I'm looking for MORE info such as installation photos and additional comments from those that have experience with the product directly.

Does the black box act like a solenoid except that it regulates the flow of nitrous somehow?

Since bottle pressure (adjusted by temperature changes) plays a large role in how much nitrous is sprayed from the jet, how does the computer of the box know what to do with the change in pressure?

Another question I have.... with typical dry kits, you're spraying only the N2O with no added fuel, so you spray the nitrous BEFORE the Mass Air meter to allow the car's computer to adjust the fuel being sprayed into the engine through the injectors.

Where's the Mass air meter on the Mini? From what I can tell on the engine diagram, the M7 kit plumbs in just before the air flow reaches the intake ports (after the intercooler). How's does the Mini computer know to increase fuel flow to compensate for the extra oxygen density?

Sorry for the questions, I want to understand this thing on my Mini before I slap together a nitrous kit.
 
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Old Sep 20, 2005 | 10:32 AM
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Originally Posted by stylin99
Thx Peter. I've already read that. I'm looking for MORE info such as installation photos and additional comments from those that have experience with the product directly.

Does the black box act like a solenoid except that it regulates the flow of nitrous somehow?

Since bottle pressure (adjusted by temperature changes) plays a large role in how much nitrous is sprayed from the jet, how does the computer of the box know what to do with the change in pressure?

Another question I have.... with typical dry kits, you're spraying only the N2O with no added fuel, so you spray the nitrous BEFORE the Mass Air meter to allow the car's computer to adjust the fuel being sprayed into the engine through the injectors.

Where's the Mass air meter on the Mini? From what I can tell on the engine diagram, the M7 kit plumbs in just before the air flow reaches the intake ports (after the intercooler). How's does the Mini computer know to increase fuel flow to compensate for the extra oxygen density?

Sorry for the questions, I want to understand this thing on my Mini before I slap together a nitrous kit.
the Venom kit is hard wired to your injectors O2 sensor and the throttle position sensor so the black box only allows the NOS to be sprayed when the conditions are right i.e. WOT, the engine is not running lean and it automatically increases the injector cycle for the extra fuel needed. it also constantly monitors A/F and shuts the system down should she sense the engine going lean.it also has three led's on the arming switch that tells you the status of the system and also tells you your A/F. I dont have a kit would love one but cant get a Nitrous refill where I live.
Ive done my homework and researched this product but im sure ive missed something??
im sure one of the experts will chime in sometime.
 
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Old Sep 20, 2005 | 10:36 AM
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Injector bypass

Oh, one more question. I'm assuming a dry kit is chosen for a reason?

What's the capability of the fuel delivery to the injectors? Are the fuel pumps and lines sufficient enough to allow a wet system to be installed? In other words, tap the fuel line at some point to deliver fuel to the manifold to spray both nitrous and gas.

Anybody know what size fuel pump we're given by MINI?
 
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Old Sep 20, 2005 | 10:45 AM
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Can't get refills? Where do you live?

Prof described the system in a nut shell. I don't know how you'd hide the system, expecially the bottle Here's a couple of images.


The lower hose with the blue fitting above the AGS is where the N2O is injected. The system comes with one solenoid. The second one was added for purge.
Originally Posted by Profpatpending
the Venom kit is hard wired to your injectors O2 sensor and the throttle position sensor so the black box only allows the NOS to be sprayed when the conditions are right i.e. WOT, the engine is not running lean and it automatically increases the injector cycle for the extra fuel needed. it also constantly monitors A/F and shuts the system down should she sense the engine going lean.it also has three led's on the arming switch that tells you the status of the system and also tells you your A/F. I dont have a kit would love one but cant get a Nitrous refill where I live.
Ive done my homework and researched this product but im sure ive missed something??
im sure one of the experts will chime in sometime.
 
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Old Sep 20, 2005 | 10:46 AM
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Originally Posted by Profpatpending
the Venom kit is hard wired to your injectors O2 sensor and the throttle position sensor so the black box only allows the NOS to be sprayed when the conditions are right i.e. WOT, the engine is not running lean and it automatically increases the injector cycle for the extra fuel needed. it also constantly monitors A/F and shuts the system down should she sense the engine going lean.
Nice! So maybe Peter can answer this one...
What RPM is the black box set to come on, go off, etc? Are there chips or pills that you can change to adjust the RPM activation? If I only want it to be on from 3000 to 6400, can it be set?

Since the A/F is only listed as a Green vs. Red Light, what are the exact A/F numbers that are considered Lean vs. Rich. In other words, does the Lean light go on at 12.5? Show rich at 11.0? What are the numbers? and are they adjustable? Is the throttle position activation adjustable? Does it come on at WOT only?
 
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Old Sep 20, 2005 | 12:26 PM
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Can we spray 100 straight away???

How does the ecu know to spray more fuel??

Will it only spray a set amount or will it work with a controller??

How does the kit retard the ignition timing??

I do like the idea of a dry system so if you are running small quanties you don't have to worry about the fuel jet getting blocked because the hole is to small, less than .020.

I've seen ultra small chips of paint block a hole before and burn a piston
 
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Old Sep 20, 2005 | 12:51 PM
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How does the ecu know to spray more fuel??...when you flatten the go pedal, the controller checks with o2 sensor and adjusts injectors accordingly.

Will it only spray a set amount or will it work with a controller??...huh?...it will continue to spray until 1-you let off the gas, 2-o2 sensor says you don't have enough fuel, 3-when you run out of nitrous.

How does the kit retard the ignition timing??...it doesn't...the Mini's ECU does that part. As far as 100 shot, I wouldn't go past green jet (mid size) without upgrading to 400cc injectors.
 
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Old Sep 20, 2005 | 01:06 PM
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Originally Posted by MSFITOY
Can't get refills? Where do you live?
Ireland, and was quoted 175 euro for a refill as nobody uses NOS here.
I do love seeing pics of your car.
 
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Old Sep 20, 2005 | 02:27 PM
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MSFITOY, did you cure your purple problem??

When you say that a red nozzle is .030 Orifice size is that the size of each hole in the nozzle i.e 4 x .030??

I know a .030N .030F at 6psi in a V8 fogger is 300hp
 
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Old Sep 20, 2005 | 02:39 PM
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From: Flitwick UK
http://www.robietherobot.com/NitrousJetCalculator.htm


Says 162hp with 4 x .030 jet

I'm defintley missing something here, in some ways I hope you've been spraying that much because that means the stock motor can really take some abuse and I'm well impressed, I can understand now why the purple ones keep shutting down 4 x .040 287hp

How big is the Nitrous Solenoid orifice??
 
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Old Sep 20, 2005 | 02:57 PM
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DOOOOHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH


I just realised there's only one nozzle

I blame it on my age should be in bed by 21.00
 
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Old Sep 20, 2005 | 05:13 PM
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Hi....

The Black box will receive a voltage signal from the O2 sensor. This signal is compared to the "perfect A/F ratio" necessary for
nitrous use (very rich). > 10.5:1

As the voltage from the O2 sensor reaches 0.65 volts the
signal from the controler will allow the injectors to go to 100% duty cycle.
As for trottle/rpm voltage (3.75 volts) is all set up to allow the N2O
to flow only at close to 100% throttle opening. We could possibly lower the voltage threshold (custom programing) on a limited basis.

We have been using the "Black" nozzle in conjunction with our 400cc injectors with no problem what so ever, black nozzle is custom order only.

As for a stealth install it's all possible, but you have to remove the
intercooler and the bend between the IC and manifold and find a spot to
tap a hole for the nozzle.

The fuel delivery system is more then plenty for 400cc injectors at 100% duty cycle, with the stock fuel pump system. We have been looking in
to an uppgraded fuel pump, but the problem is, that if you would add more then 10% fuel pressure to the system, the plastic fuel lines could possibly
rapture.


peter
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562-608-8123
 
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Old Sep 20, 2005 | 06:05 PM
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Thanks for the great info Peter!

How about instead of a bigger fuel pump, create your own dual system, pulling a separate line from the tank to an aux. pump up to the manifold where a solenoid sits for spraying a wet kit. (Yea, I know I'm living on the edge of budget and sensibility).

I might be able to find a way to get that nozzle wedged between the IC and tube bend. Has anyone had problems with the spray getting into one cylinder more than another? Since it's inline, it seems the majority of the spray might dip into the first port, and not evenly distribute. Can you keep me from biting my nails over worrying about it?

Is there a "hail mary safety device" to prevent spraying above the rev limiter? I'm assuming that's build into the black box but thought I'd ask.

I think I'm just about sold! My mod list is being planned carefully. I know how easy it is to waste your money on the petty stuff, so I'm jumping right to the go fast goodies!
 
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Old Sep 20, 2005 | 07:37 PM
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Originally Posted by stylin99

How about instead of a bigger fuel pump, create your own dual system, pulling a separate line from the tank to an aux. pump up to the manifold where a solenoid sits for spraying a wet kit. (Yea, I know I'm living on the edge of budget and sensibility).
How can I say this..............Noooooo Neeeeed, and don't waste your
money.


Originally Posted by stylin99
I might be able to find a way to get that nozzle wedged between the IC and tube bend. Has anyone had problems with the spray getting into one cylinder more than another? Since it's inline, it seems the majority of the spray might dip into the first port, and not evenly distribute. Can you keep me from biting my nails over worrying about it?
You are correct there is a chance of loading #4 cylinder with more N2O
then # 1.....


Originally Posted by stylin99
Is there a "hail mary safety device" to prevent spraying above the rev limiter? I'm assuming that's build into the black box but thought I'd ask.
Alwas use caution when using N2O, over reving is not good, but that is also the reason for us to keep nitrous flowing at 100% trottle angle not at 70%
as the gas will not flow when you shift gear.

Originally Posted by stylin99
I think I'm just about sold! My mod list is being planned carefully. I know how easy it is to waste your money on the petty stuff, so I'm jumping right to the go fast goodies!
And now is the time to buy our system + injectors, as we have a super deal at $999.00

peter
Team M7
562-608-8123
 

Last edited by M7; Sep 20, 2005 at 07:43 PM.
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Old Sep 21, 2005 | 09:20 AM
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Cheers Pete for the info, so if you did have a nitrous controller contolling the solenoid say with a start percentage of 30% to 100% with a build up off 1.6 sec, the injectors would flow the correct quanties of fuel to match the nitrous quanties been injected??

As for the uneven distrbution you would be only be able to tell this through having an egt sensor in each exhaust manifold pipe, obviously from Pete experince he hasn't got any piston ashtrays sitting in his shop so a 100 looks safe.

I have seen in the past an over rich condition hurt a piston, excess fuel gets down the side of the piston and ignites lifting the top of the piston up slightly then it gets hotter etc etc, mind you this is when friends have been spraying 550ish on pump gas.

It is defintley addictive

Have you run yours down the 1/4 Pete with and without gas??
 
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Old Sep 21, 2005 | 09:53 AM
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There have been a couple of guys who've ran black jets (along with pully I think) and pulled low 13's at the strip Mine is roughly equivalent to WMS' stage 3+ setup with green (mid) jet and we have little trouble out running stock GTOs & 06 Mustang GTs from 70 roll...fast enough for me. Coming back from the Dragon, a friend in a 05 JCW had Msfit on tape as we pulled away like they were standing still

Too bad nitrous is only for the straights...
 
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Old Sep 22, 2005 | 02:04 PM
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[QUOTE=MSFITOY]There have been a couple of guys who've ran black jets (along with pully I think) and pulled low 13's at the strip
QUOTE]

 
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Old Sep 22, 2005 | 02:47 PM
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[QUOTE=Bisch]
Originally Posted by MSFITOY
There have been a couple of guys who've ran black jets (along with pully I think) and pulled low 13's at the strip
QUOTE]

That's me! ...only problem is....I just blew another headgasket!
19%, nitrous, HAI, header, 2 blown headgaskets.
I guess I should be happy with the green jet LOL
 
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Old Sep 22, 2005 | 04:18 PM
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I too am interested in running N20 on my MCS.

Mods in conjunction will be 15%, Borla Catback, Alta intake.

Now, I was also considerring doing an ECU upgrade (be it MTH, unichip, etc), but with my very limited knowledge or nitrous and ecu programming, I was under the impression that most upgraded ecu's advance the timing somewhat. This is a BAD thing for nitrous. Is there a work around, or are all the nitrous users running on stock ecus?

I like the idea of having a quick 50+hp ready at the tip of my pedal, however, im having a hard time seeing where an occasional 50hp would be better then the 10ish hp that most ecu upgrades seem to bring at all times. Aside from the track of course. Im not a drag strip guy, although i intend on making a couple trips down the strip. My main use is day to day kills.

800$ + refills for occasional bursts (more burst add money for frequent fills) vs same or less money for ECU tuning to get less power all the time.

opioions and info appreciated...
 
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Old Sep 22, 2005 | 05:39 PM
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F
 
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Old Sep 22, 2005 | 06:02 PM
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Originally Posted by Bisch
FYI

My nitrous habit is $45-90 per week. It ain't cheap. Oh, high octane ain't cheap either...
You're a madman My bottle lasts for at least two weeks...course, you're kickn more butt than I am

Bugs...as far as the the timing advance is concerned, I'm not sure what happens. My Unichip map is aggressive to match my WMS head/TB/header/cat-back/TMIC/AGS, etc... but I keep it on A map even with 93 octane. Still, my A/F is around 12.2-13 during nitrous use so I'm not too concerned. Just incase, I also am pumping in water/methanol mix at 3 gph to retard any pre-ignition. Nevertheless, I've ran the nitrous long before the WI and my plugs never showed signs of PI.
 
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Old Sep 26, 2005 | 07:00 AM
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...
 
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