I think Mike's the one to answer the performance improvements under various conditions as he has run the system for some time now and I've not used it on the move yet. Hopefully my boost switch will be in the car on saturday. 
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- Thread starter devonutopia
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MIke - You referring to Rowleys? copy/pasted them in as below
Rowleys Performance Engineeering
address: Postcross Business Park, Kentisbeare, Cullompton, Devon, EX15 2BB
phone: 01884 266243
fax: 01884 266243
e-mail: [email protected]
web: www.R-P-E.co.uk
Yep Rowleys garage shut a few years ago mate.
I am insured with Highway through Adrian Flux who quoted a good ( well compared to others ) price. When it comes to performance gains i guess it all comes down to how you have the system set up. My system only comes on at 20 psi boost so you have to be accelerating hard for the system to be active. It would also come down to how fast/stupid you want to drive on B roads etc.
So essentially in real life it will not be any use apart from perhaps slip road acceleration, swift A road overtaking and the odd trackday here and there.
Sounds like a bit of a waste of time and money to me, but if you have both then Im sure its good fun.
NOS could be set up to be active all the time so you get super quick acceleration but a bottle will not last long and it`s bloody expensive stuff to run a car on permanently. At the end of the day you cannot use a high performance car properly on country back roads or around town no matter what it runs on unless you want to drive like an idiot. That said i am not a great fan of NOS and would rather get the power needed from a bigger turbo.....
OK, so what are the differences in having the NOS injected closer as in Mike's car, as opposed to Jason's which seems to inject NOS into the airbox?
It's not the airbox.
It's still the pressured side of the turbo, but Mike's injects about 1" from the manifold, whereas mine is around 36" away from the manifold. In my opinion, the freezing cold N2O is still being mixed with the warm turbocharged air, so the same cooling effect will be had. The only slight difference with my routing is a very tiny %% of the cooling will be lost by the cooling going through the alloy pipe material into the engine bay - but I imagine this (in practise when driving) will be less than 1% of the total amount of cold stuff injected. 
good to see there's many guys here going serious,,,
now you just need to know where the local hospital gets the nos bottles on the cheap,,,
now you just need to know where the local hospital gets the nos bottles on the cheap,,,
I'll need a cheap local place to refill soon. Seems to be nowhere around me that does refills and it's around £6 a lb. That's about a £50 fillups which will last about 4 or 5 minutes on full. I doubt I will really use it that much with the way it cuts in, but you never know. £10 a minute for NOS use.... lol.
It's not the airbox.
Ah I see now looking more closely at the video. Tis mounted on some sort of bracket? in front of the airbox and feeds into upper intercooler pipe.
but really, hospitals use nos cos it's used as an exhilarant or anesthetizer of some sort so maybe you can ask them where they get the bottles, maybe the same company could fill you up or give you the bottles on an exchange basis on the cheap,,, nos in itself shouldn't be that costy but the guys who fill up for cars know the pistonheads will spend to go quicker,,,
This is where i am going to be posting my bottle off to as i know they supply a lot of tuning companies that sell NOS like Interpro etc.
http://www.nitrousoxidesupplies.co.uk/products/refills_by_courier.html
I have been toying with the idea of using four jet instead of one drilled directly into the inlet manifold so that the NOS gets sprayed straight into the cylinder head. I don`t know how much difference it would make but every little helps.
golisago
Guest
NOS could be set up to be active all the time so you get super quick acceleration but a bottle will not last long and it`s bloody expensive stuff to run a car on permanently. At the end of the day you cannot use a high performance car properly on country back roads or around town no matter what it runs on unless you want to drive like an idiot. That said i am not a great fan of NOS and would rather get the power needed from a bigger turbo.....
Will this be a vnt turbo or a waste-gate turbo Mikey!!!
My system is in and working properly now.
Getting some good extra power, and a bit less smoke too.
Getting some good extra power, and a bit less smoke too.
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