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Ok i am afraid i start with a newbie post here !
Welcome to my forum Bobster
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i have been using forums for a while so i know everyone dreads the newbie post so i will keep my post as concise as possible,
Not a problem here.
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# the mazda forums say the engine is safe up to 380bhp 380ilb torque # if the torque is controlled and most tune the torque down to 350ilb when they increase the bhp as its the low down torque that wrecks these engines.
I doubt that torque is responsible for any damage to any engine and its more likely that people are just blaming that, rather than accepting responsibility for a bad build. Nitrous creates HUGE torque figures and I've yet to find any engine that failed due to that and I've fitted systems to many 1,000s of different engines over a 35 year period.
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Nitrous on these cars has been tried in the states with negative results and the loss of 2 engines both blaming the frailty of the engine pistons rods and the fact that the torque is to much low down.
their are plenty naysayers that say this is a bad route.
Again that's UNTRUE as the TRUTH is that US brand nitrous kits are JUNK and as a consequence subject the engine to extreme levels of detonation and THAT is the cause of the engine damage.
OUR systems are designed and manufactured CORRECTLY and as a consequence they do NOT cause detonation and as a consequence they do NOT cause engine damage. Quote:
The gen2 mazda has forged pistons and rods as standard but only good for 380bhp and torque respectivly.
That 'MIGHT' be the case on a turbo ONLY motor but will be MUCH higher using WON nitrous
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After this then its a couple of k to fit specialist pistons rod etc to reforge to a high standard.
now its my understanding that the cars in the states that used NOS were porting in 100bhp and i have no info on the torque but i bet it was not far of this increase either.
We start ALL our street customers off with 25 HP jets (which will make at least 50 at the crank on a turbo motor) and I'd be amazed if you weren't more than happy with that and then you can increase from that in 25 HP steps to whatever level you are happy with.
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Ok my questions....
1 i am finishing my tune with my tuner in the next few weeks and should i ask him to tune down the torque i think he is aiming for around the 350ilb torque level but should i go lower?
I'd be AMAZED if torque was ever responsible for engine damage of any kind, so I certainly wouldn't do that.
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2 i have one step colder plugs gapped at 0:7 as this is standard for my mods should i drop this to 0:6 as nitrous demands a closer gap hence tune on 0:6?
That depends on how strong your s[park is and how much nitrous you add. A strong spark could run the stock gap on modest levels of nitrous.
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3 Should i aim for a very small improvement say 25bhp and not 50bhp to remain in the safe zone
As dealt with above.
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4 is their a safe zone?
As dealt with above and as long as you only use a WON system you'll always be in a safe zone.
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5 would it be better and safer to only use nos in 4th 5th 6th gears and not to use on standing starts?
That would put the motor under less load but I've never had problems using nitrous from virtually idle on any motor. A better solution is to buy a progressive system and just add more and more as you go up the rpm range and up the gears.
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6 i need a kit that feeds the nitrous and keeps me in safe limits is this controllable?
Yes if you add a Max Extreme
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can i gain bhp without going through the roof of torque with the introduction of nos?
Yes but again I doubt that's a problem and if it was you'd be the FIRST of my many thousands of customers to suffer that way and keep in mind that we've added nitrous to MANY STOCK FRAGILE engines (with cast pistons) and more than tripled the torque in many cases.
