Another Nitrous Question

[davefrith]

Originally posted by MintyFresh
Its Highpower (wizards of nos).  The warranty costs £1 per bhp increase you use, so 50bhp = £50

I\'d love to read the T&C\'s on that

[MintyFresh]

twice as hot? exactly the opposite of what i would expect.

Trev at Highpower says he worked on the quickest recorded uk rex a few years back, and although it was obviously modified he said it had no problems dealing with nitrous.

Its all gonna come down to giving it a go.  I will try to get hold of Tim but at the end of theres not enough information on the subject and the only way to know for sure is to do it.

My brother has also ordered a kit for his BMW MIni Cooper, his is direct port injection and we are going to have a large bottle stashed away so theres not far to go to refill.

[Glenn Butcher]

NOS works, and works extremely well on a rotary - when it is done right (like most things!).

Do a search also, there are some good threads from memory on NOS (on our forum).

Biggest problem you will have is the tuning, ultimate way is to use an aftermarket ecu to do the whole lot (like a MoTeC).

To do the fuel system properly will cost you more than the NOS kit itself.

Please keep us up to date on how you go!

[davefrith]

Watching with interest, good luck

[Archbish]

What you do is have the nitrous point backwards out of the rear of the car.  Then when you want the boost, you crank open the bottle, and it squirts Nitrous out of the back of the car.  The force of the jet will be enough to rocket the car down the track.  You do need to be careful tho - it\'s the same method the baddy in Moonraker used to control the rotation of his space hideaway, and that was enormous!

You have been warned.

[Robertio]

Originally posted by MintyFresh
twice as hot? exactly the opposite of what i would expect.

You\'re thinking about intake temps, which will be reduced, but the combustion temperatures will go up - odds are you are going to need cooler plugs before you reach a 75 shot.


I was going to be running 75 on my car had it not gone pop before we got that far, just fortunate the kit hadn\'t turned up when the engine decided enough was enough.  I was simply going to use it for 1/4 mile runs and nothing more.

As others have said get hold of the T&C for the warranty, I will be amazed if it covers more than just parts and ultimately labour is a fair percentage of an engine rebuild when you take into account the time required to get it in/out of the car along with the rebuild process itself.

Be sure and check your insurance company will allow it on your car - Aon told me that was the one mod they wouldn\'t cover on an FD.  Even if your insurers do cover it your premium will probably go through the roof as gains will be well above the jet rating - even 25 should result in 40+bhp from what I could find.

Also bear in mind that even if you are running a PFC you are going to have to retard the timing to run more than the smallest amount of nitrous, it\'s up to you whether you run the car the whole time on it\'s retarded setting, or get an add-on that will retard the timing when the nitrous is on.

As a final thought - Steve Kahn regarded as the best FD mapper in the US can\'t get his car to run nitrous in 4th gear, first 3 fine, but not in fourth.

[MintyFresh]

i thought because of the cooler intake temps you dont have to change the timing?

[paul C]

FYI,

I noticed this in passing the other day. This unit will retard your ignition based on nitrous, boost etc.

http://www.jandssafeguard.com/NewProduct.html

I was thinking of getting the cheaper version as more armour in the det prevention war.

Paul

[Timrxmotors]

With nitrous be prepared for lots of boost,as your boost control will become non existent.My engine had a tiny standard turbo,even that gave 20 psi with nitrous.You need LOTS of fuel,and a strong engine.

[davefrith]

http://www.rx7club.com/forum/showthread.php?s=&threadid=111605&highlight=NOS


Very good write up, to go along with what Tim says boost creep will be massive and a std engine no chance

[MintyFresh]

I decided to go against nitrous right now.  im going to sort the looks and handling, and then when the engine needs a rebuild get it built specially for the mods  i have planned.

[davefrith]

probably wise:cool

[Glenn Butcher]

Don\'t want to say too much (but I have had a large scotch!)

I know of someone that is hoping to achieve around 800hp from a standard 13B non-turbo engine using NOS.

Say no more......... :rollin

[20B_boy]

Originally posted by gbutcher
I know of someone that is hoping to achieve around 800hp from a standard 13B non-turbo engine using NOS.

How long for?!? :rollin

[Glenn Butcher]

We\'ll see eh

Puerto Rican\'s have been running 7\'s for a while - don\'t see why others can\'t do it with no turbo!