99 Nb8A forced induction

[philz]

I need some info on what's out and what people have used on the NB8A.

Right now, Jackson racing supercharger and AVO kit are the ones that I have in mind.

The AVO kit is the most tempting due to the fact that it's locally built.

And just looking through some threads, the Jackson racing s/c kit seems to be a popular choice with NAs.

But are there any other suggestions? I should look at.

I'm looking for people who have had experience with FI on the NB8A.

[Szemen]

The person that comes to mind is 16bit and he seems to love the rotrex he has.

I had a taste of supercharger goodness from my gf's JCW and I want more! I want the whining that it comes with, only the JRs have that, but from what I heard, they are are quite limited in the amount of boost they can produce.

[philz]

As much as I love s/c whine....Will the s/c whining drive you insane after a couple of months, similar to a BOV?

[Szemen]

As much as I love s/c whine....Will the s/c whining drive you insane after a couple of months, similar to a BOV?

Its a great sound but only comes on when you get higher up on the RPM range and when your hammering it. Otherwise, you don't get much noise. Its been about 1 month now and we haven't gotten sick of it yet =D

[sprx3]

I too looked at a supercharger kit when i was looking at my fi options, i went with the avo kit because i got it while they where on special, i also looked at building my own kit but for the price i couldnt make it with the same parts & havent looked back, the avo kit is removable & would be about the same amount of work to remove as an sc kit, (they are both a pain to fit & remove) but well worth it. The main advantage with turbo is the ease & price you can get more power & as much as people say they will be happy with standard boost its just not true otherwise you would be happy with the car currently. Avo is great as it is local, their support is pretty good BUT the instructions that comes with the kit (if your installing yourself) sux, lucky for us they have a detailed install guide online BUT its in the Jap avo website. (unless things have changed) if you follow that it will make your life a lot easier to say the least.

Its not a cheap kit but all the parts that come with the kit are the best of the best, like anything you get what you pay for. Also the nb8a is a great start point as it has the best head of all the BP engines & will create most power, all BP bottom ends are the same so if you do blow a motor there is plenty of bottom ends out there, complete nb8a motors are another story as i have just discovered, but dont fear they are a pretty strong motor & you can easily see 150+ rwkw out of them with out putting too much stress on them which makes it a pretty quick street car & will provide you with a lot of fun or loss of licence.

At the end of the day you need to work out your budget & what you want to do with your car & go from there...
all kits have there purpose & once you know what you want its a lot easier to work out which one is for you.

[93_Clubman]

AVO were also looking at getting emissions compliance for their 1.8 stage one kit last year if that's a consideration.

[philz]

Cheers SPRX3, just the info I was looking for.

Is this the fitting instructions you were talking about? www.avoturbo.com/avo_guides/view/Classi ... o_guide001, they look pretty sort out.

And iirc the current price on the AVO site is $3950 for the Type S kit, wasn't it much more expensive before?

How many years have you had the kit on for, and have you had any problems with it during this time?

also what ECU are you running with this kit.

[mx52nv]

Also the nb8a is a great start point as it has the best head of all the BP engines & will create most power.

Actually, the BP-ZET engine out of the SE/Mazdaspeed models have the best flowing heads. This is based on dyno figures I have seen for power and torque.
One dyno tuner I know well, was very surprised when Simon's SE made more horsepower and torque than a SR20DET powered Silvia with similar bolt-on modifications and on 15 psi boost.
Les @ MX5 Shop

[mhj]

get a mp62 hotside sc
you will NEVER get sick of the whine
alternately get an ffs coldside and live with the limit of apx 200hp
you will NEVER get sick of the whine
paticularly if you get a loud exhaust

enjoy

[philz]

One dyno tuner I know well, was very surprised when Simon's SE made more horsepower and torque than a SR20DET powered Silvia with similar bolt-on modifications and on 15 psi boost.
Les @ MX5 Shop

Does this mean I should get the SE instead?

get a mp62 hotside sc
you will NEVER get sick of the whine
alternately get an ffs coldside and live with the limit of apx 200hp
you will NEVER get sick of the whine
paticularly if you get a loud exhaust

enjoy

Cheers, I'm more interested in the hotside rather than cold for ease of install.

Which mp62 kit do you recommend? is the m45 too small of application for the 1.8Ls?

[sprx3]

One dyno tuner I know well, was very surprised when Simon's SE made more horsepower and torque than a SR20DET powered Silvia with similar bolt-on modifications and on 15 psi boost.
Les @ MX5 Shop

Does this mean I should get the SE instead?
quote]


I dont think you need too.....

this taken from wiki

BP-4W
The 1999 Miata uses a modified BP, the BP-4W, which replaces the old Hall Effect dual Cam Angle Sensor unit mounted at the back of the exhaust cam with two separate Hall Effect units at the front - one on the intake cam gear and one mounted on the oil pump, to the side of the crankshaft pulley. It also has an improved intake system (a better flowing cylinder head because of the angle of the intake ports being changed). The United States 2004-2005 Mazdaspeed MX-5 turbo is based on this engine rather than the newer BP-Z3 and produces 178 hp (133 kW) and 166 ft·lbf (225 N·m) with slightly-reduced compression. The Mazdaspeed turbo engine has no VICS, but does have VTCS which is often considered related, but is not.

Applications:

1999-2000 Mazda MX-5/Miata
2004-2005 Mazdaspeed MX-5 (turbo)

[16bit]

mp62 hotside is the best value non turbo application out there. if not avo, begi, fm turbo's are also good value and you can get sh*t loads of power out of them.

EDIT - all of this is pending your tuning solution/supply of fuel obviously.

[mhj]

One dyno tuner I know well, was very surprised when Simon's SE made more horsepower and torque than a SR20DET powered Silvia with similar bolt-on modifications and on 15 psi boost.
Les @ MX5 Shop

Does this mean I should get the SE instead?

get a mp62 hotside sc
you will NEVER get sick of the whine
alternately get an ffs coldside and live with the limit of apx 200hp
you will NEVER get sick of the whine
paticularly if you get a loud exhaust

enjoy

Cheers, I'm more interested in the hotside rather than cold for ease of install.

Which mp62 kit do you recommend? is the m45 too small of application for the 1.8Ls?

get the 62!!!!!it has more head room for power increase ...too much power is never enough...i have a 45 and its cool( big inj/62.5 pulley/adaprtonic = 140 rwkw/380 nm on mania dyno)...but the 62 does it with nderspun lazy ease so air isnt heated so much....with this style of sc its better to not have intercooler and keep the throttle response and cool air... also 62 has option available of twin throttle body for even better throttle response....62 is definitely the way to go...45 is good for 1.6 engine ...boost suffers when the engine is the 1.8

enjoy

[16bit]

on the fm site there is a dyno chart of a built 2.0 motor with a 62 pushing 300whp.

[mhj]

on a slightly OT
could you put ITB's on a car with supercharger...and could such car be made street legal...and reliable for daily drive