NITROUS OXIDE ( nos / n2o ) advice forum

Nitrous Oxide ( NOS / N20 ) Forum
 
It is currently Mon Oct 23, 2017 12:34 am

All times are UTC




Post new topic Reply to topic  [ 115 posts ]  Go to page Previous  1, 2, 3, 4, 5
Author Message
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Thu Aug 03, 2017 5:59 pm 
Offline
Learner

Joined: Sun Nov 27, 2016 2:03 pm
Posts: 121
I hope so cos he just paid £26k for it whereas my Z4 is worth about £5k tops, my 230bhp +75 shot Vs his 325bhp auto & I think his car weighs about 100kg more than the Z4. Wouldnt like to underestimate a Porsche tho?
Still I can always upgrade to DP!


Top
 Profile  
Reply with quote  

Advertisement

Wizards of NOS Conact US
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Thu Aug 03, 2017 6:16 pm 
Offline
Wizard
User avatar

Joined: Sat Mar 21, 2015 8:13 pm
Posts: 880
Location: Orlando, Fl in 'Merrrrica!
bmwz4 wrote:
I hope so cos he just paid £26k for it whereas my Z4 is worth about £5k tops, my 230bhp +75 shot Vs his 325bhp auto & I think his car weighs about 100kg more than the Z4. Wouldnt like to underestimate a Porsche tho?
Still I can always upgrade to DP!



You'll have the torque advantage to get the jump on him and WoN's unique features actually improve output in the upper range: the longer its active, the higher the performance. The only time performance drops is if the cylinder drops below the half way mark where the pressure drop curve begins to ramp up, so keep that bottle as full as possible and you'll wipe em.

Remember, nitrous engines provide power throughout ALL rpm, and not just peaks like n/a engines. So if you can get the jump on the porsche, you'll have the advantage of either holding your position or pulling away.

_________________
sales@noscraftnitrous.com In the U.S.A? Buy WON gear online HERE!

YouTube Channel

Project G-O-D
1999 GS300 PITA - SP Fixed hit, Twin Injector!


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Sun Aug 06, 2017 5:28 pm 
Offline
Learner

Joined: Sun Nov 27, 2016 2:03 pm
Posts: 121
What a fun day albeit a little naughty if Mr Plod saw us! Well I can report back on the Z4 vs 911 duel.....

We didnt do any standing starts or drags or anything like that just drove around until we had a chance to blast off usually from 2nd gear and it was pretty much even I was up ahead but the 911 would never have got past me, my mate said he gave it absolutely everything to keep up but so was I? I was having a little problem with the traction control coming in even in 3rd gear so that may have held me back a bit. I did reduce the build time from 2 secs to 1 sec in 3rd to 6th, so maybe I need to turn it up again, also ran out of revs as Ive got the nitrous only on to 6000rpm and the car redlines to 6500, but this is probably splitting hairs.

My mate was well impressed with the effect of the Nitrous.

I'm currently looking at changing the diff from a 3.07 to a 3.64 ratio, there are a few threads out there saying what a brilliant upgrade it is for the 3.0 Z4 manual, only trouble is they can only generally be found on a 2.5I auto or 3.0SI auto and they are alot rarer to find in scrap yards in the UK, also the 3.0i auto has a 3.46 ratio so thats an option too but still fairly rare, just need some patience.

What an excellent day and we both returned alive!


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Sun Aug 06, 2017 7:04 pm 
Offline
Wizard
User avatar

Joined: Sat Mar 21, 2015 8:13 pm
Posts: 880
Location: Orlando, Fl in 'Merrrrica!
bmwz4 wrote:
What a fun day albeit a little naughty if Mr Plod saw us! Well I can report back on the Z4 vs 911 duel.....

We didnt do any standing starts or drags or anything like that just drove around until we had a chance to blast off usually from 2nd gear and it was pretty much even I was up ahead but the 911 would never have got past me, my mate said he gave it absolutely everything to keep up but so was I?

As Dominic Toretto said "It doesn't matter if you win by an inch or a mile: winning's winning." :D

I was having a little problem with the traction control coming in even in 3rd gear so that may have held me back a bit.
That would hold you back A LOT actually, even if it steps in for a mere fraction of a second. You might want to find out how to disable it for such events.

I did reduce the build time from 2 secs to 1 sec in 3rd to 6th, so maybe I need to turn it up again, also ran out of revs as Ive got the nitrous only on to 6000rpm and the car redlines to 6500, but this is probably splitting hairs.
Another huge disadvantage! Only set the cut off point to only 100-200 rpm before the engine limiter kicks in. Or else, you'd have to change to the next gear just after nitrous cuts out to keep your torque output up, and BMW's LOVE rpm so it's not the most efficient route.

My mate was well impressed with the effect of the Nitrous.
Just hope he doesn't get sneaky and one up you by installing a WoN system on his Porsche or else you're gonna be super screwed! :beatstick:


I'm currently looking at changing the diff from a 3.07 to a 3.64 ratio, there are a few threads out there saying what a brilliant upgrade it is for the 3.0 Z4 manual, only trouble is they can only generally be found on a 2.5I auto or 3.0SI auto and they are alot rarer to find in scrap yards in the UK, also the 3.0i auto has a 3.46 ratio so thats an option too but still fairly rare, just need some patience.
Generally, I oppose going up in gears like that for nitrous engines where they have the upper hand in developing massive low end torque. Usually,
the result is more difficulty getting traction and less time the engine is in lower rpm where the nitrous gives the most torque. As I mentioned prior, BMW's love to make power up top and if you couple the gears with a proper cut-off rpm, you should be able to increase acceleration quite a bit.
The problem you'd have is setting a slower build time (and possibly start %) on the Maxy because the traction problems will increase with the gearing.


What an excellent day and we both returned alive!
:yes:

_________________
sales@noscraftnitrous.com In the U.S.A? Buy WON gear online HERE!

YouTube Channel

Project G-O-D
1999 GS300 PITA - SP Fixed hit, Twin Injector!


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Sun Aug 06, 2017 7:20 pm 
Offline
Learner

Joined: Sat Sep 12, 2015 4:38 pm
Posts: 248
Location: Coventry
Excellent 8) :yes:

_________________
Cars: Ford Mk3 Capri 2.1 and Ford Mk7 Fiesta zetec s (with nitrous)


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Mon Aug 07, 2017 2:40 pm 
Offline
Learner

Joined: Sun Nov 27, 2016 2:03 pm
Posts: 121
Turbobox wrote:
bmwz4 wrote:
What a fun day albeit a little naughty if Mr Plod saw us! Well I can report back on the Z4 vs 911 duel.....

We didnt do any standing starts or drags or anything like that just drove around until we had a chance to blast off usually from 2nd gear and it was pretty much even I was up ahead but the 911 would never have got past me, my mate said he gave it absolutely everything to keep up but so was I?

As Dominic Toretto said "It doesn't matter if you win by an inch or a mile: winning's winning." :D

I was having a little problem with the traction control coming in even in 3rd gear so that may have held me back a bit.
That would hold you back A LOT actually, even if it steps in for a mere fraction of a second. You might want to find out how to disable it for such events.

Well I know how to disable it but Im just a bit scared to!

I did reduce the build time from 2 secs to 1 sec in 3rd to 6th, so maybe I need to turn it up again, also ran out of revs as Ive got the nitrous only on to 6000rpm and the car redlines to 6500, but this is probably splitting hairs.
Another huge disadvantage! Only set the cut off point to only 100-200 rpm before the engine limiter kicks in. Or else, you'd have to change to the next gear just after nitrous cuts out to keep your torque output up, and BMW's LOVE rpm so it's not the most efficient route.

Will do

My mate was well impressed with the effect of the Nitrous.

Just hope he doesn't get sneaky and one up you by installing a WoN system on his Porsche or else you're gonna be super screwed! :beatstick:


I'm currently looking at changing the diff from a 3.07 to a 3.64 ratio, there are a few threads out there saying what a brilliant upgrade it is for the 3.0 Z4 manual, only trouble is they can only generally be found on a 2.5I auto or 3.0SI auto and they are alot rarer to find in scrap yards in the UK, also the 3.0i auto has a 3.46 ratio so thats an option too but still fairly rare, just need some patience.
Generally, I oppose going up in gears like that for nitrous engines where they have the upper hand in developing massive low end torque. Usually,
the result is more difficulty getting traction and less time the engine is in lower rpm where the nitrous gives the most torque. As I mentioned prior, BMW's love to make power up top and if you couple the gears with a proper cut-off rpm, you should be able to increase acceleration quite a bit.
The problem you'd have is setting a slower build time (and possibly start %) on the Maxy because the traction problems will increase with the gearing.


True enough im probably getting greedy as quick as a 911 is not bad is it and with a few tweaks as above to improve things....still learning etc, even my buddy said he thought that going to DP would be too much power for the car and I tend to agree. The performance is fantastic as is and considering how theres quite a lot of talk about how the BMW's inlet configuration restricts performance, I couldnt agree with that,...its awesome and frightening at the same time

What an excellent day and we both returned alive!
:yes:


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Mon Aug 07, 2017 10:05 pm 
Offline
Wizard
User avatar

Joined: Sat Mar 21, 2015 8:13 pm
Posts: 880
Location: Orlando, Fl in 'Merrrrica!
bmwz4 wrote:
True enough im probably getting greedy as quick as a 911 is not bad is it and with a few tweaks as above to improve things....still learning etc, even my buddy said he thought that going to DP would be too much power for the car and I tend to agree.
To what regard? I think he just doesn't want you to be faster out of jealousy... :drunken:

The performance is fantastic as is and considering how theres quite a lot of talk about how the BMW's inlet configuration restricts performance, I couldnt agree with that,...its awesome and frightening at the same time.
Right now, you are pretty much in the sweet range where the intake manifold is still performing its function and airflow is improved by the action of injecting the nitrous. By switching to DP and elevating the nitrous flow, the airflow to the engine will further increase beyond the intake and butterfly valve norms with normal volumetric efficiency.
That is until the nitrous flow becomes so great that the intake manifold performance actually decreases and flow can actually begin to reverse (reversion), leaving the power being almost purely made by the nitrous mix. Of course, you'd have to be flowing LOTS of nitrous: much more than a standard engine can handle. You can learn more by searching for the Wizard's thread regarding the SSIS.

In short, the intake manifold has very little to do with the engine on nitrous where DP is concerned because the TB and plenum functions are bypassed, which is contrary to many common nitrous myths.


_________________
sales@noscraftnitrous.com In the U.S.A? Buy WON gear online HERE!

YouTube Channel

Project G-O-D
1999 GS300 PITA - SP Fixed hit, Twin Injector!


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Sun Aug 13, 2017 6:42 pm 
Offline
Learner

Joined: Sun Nov 27, 2016 2:03 pm
Posts: 121
So.... raised the rev limit to 6400 and actually read the manual for the car and switched off traction control, not quite as simple as is sounds as the BM's have DSC and DTC and you can have one or both off, but by just switching DSC off stops the ECU cutting power which is what I wanted, the DTC still allows for some slippage, which never happened anyway, result was even better than anticipated....Turbobox you were spot on about the revs, I was surprised how much more the car was giving after 6000rpm.

I also had my heavy son in law next to me too which I know makes a difference but the car felt quicker with him there than it did last time with just me

Ive got a fun video clip, taken on a private road of course, but cant yet work out how to compress it low enough to upload!


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Sun Aug 13, 2017 8:55 pm 
Offline
Wizard
User avatar

Joined: Sat Mar 21, 2015 8:13 pm
Posts: 880
Location: Orlando, Fl in 'Merrrrica!
You can upload it to the wonderful world of YouTube. It's free and very good at uploading large video files!

_________________
sales@noscraftnitrous.com In the U.S.A? Buy WON gear online HERE!

YouTube Channel

Project G-O-D
1999 GS300 PITA - SP Fixed hit, Twin Injector!


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Mon Aug 14, 2017 8:07 am 
Offline
Learner

Joined: Sun Nov 27, 2016 2:03 pm
Posts: 121
Here you go
https://www.youtube.com/watch?v=AZeHRsxlDmI


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Mon Aug 14, 2017 8:33 am 
Offline
Wizard
User avatar

Joined: Sat Mar 21, 2015 8:13 pm
Posts: 880
Location: Orlando, Fl in 'Merrrrica!
Ah, what a lovely song!

The car was surely moving out quite nicely! :D

_________________
sales@noscraftnitrous.com In the U.S.A? Buy WON gear online HERE!

YouTube Channel

Project G-O-D
1999 GS300 PITA - SP Fixed hit, Twin Injector!


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Mon Aug 14, 2017 6:47 pm 
Offline
Learner

Joined: Sat Sep 12, 2015 4:38 pm
Posts: 248
Location: Coventry
sounds real nice 8)

_________________
Cars: Ford Mk3 Capri 2.1 and Ford Mk7 Fiesta zetec s (with nitrous)


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Tue Aug 15, 2017 8:42 am 
Offline
Learner

Joined: Sun Nov 27, 2016 2:03 pm
Posts: 121
Thanks guys its a lot louder and screamier in real life :omgrofl:


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Thu Aug 17, 2017 1:28 pm 
Offline
Learner

Joined: Sat Sep 12, 2015 4:38 pm
Posts: 248
Location: Coventry
bmwz4 wrote:
Thanks guys its a lot louder and screamier in real life :omgrofl:


i did some videos of my car last summer, and i was going faster than a speeding bullet... but when i got home and played back the footage, i was like ohh... it felt a lot faster than it looks on the video :omgrofl:

_________________
Cars: Ford Mk3 Capri 2.1 and Ford Mk7 Fiesta zetec s (with nitrous)


Top
 Profile  
Reply with quote  
 Post subject: Re: BMW Z4 3.0I Install
PostPosted: Sun Sep 03, 2017 3:27 am 
Offline
Wizard
User avatar

Joined: Sat Mar 21, 2015 8:13 pm
Posts: 880
Location: Orlando, Fl in 'Merrrrica!
It's always difficult to convey the "feeling" of fast in videos. There is always the group of people who claim that a car is slow in a video whether it has 200 hp or 600 hp. That's why I have to put some kind of reference to the difference in power is from nitrous off to nitrous on. It's such a challenge.

_________________
sales@noscraftnitrous.com In the U.S.A? Buy WON gear online HERE!

YouTube Channel

Project G-O-D
1999 GS300 PITA - SP Fixed hit, Twin Injector!


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 115 posts ]  Go to page Previous  1, 2, 3, 4, 5

All times are UTC


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

  • Advertisement
Wizards of NOS Sparkplugs
Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group  
Design By Poker Bandits