Yep
far as i know 2.4 stroker running twin 55mm webers hmmm..
Good for 60 secs flat at lakeside
would have sounded unreal!!
mick r
----- Original Message -----
From: Australian Web Design <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, April 22, 2000 3:07 AM
Subject: Re: FJ mods
> Hey mick didn't your datto have a 2.4 litre N/A FJ20 Stroker before you
> bought the car????
> -----Original Message-----
> From: Errol Smith <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> Date: Friday, April 21, 2000 9:59 PM
> Subject: Re: FJ mods
>
>
> >Luke,
> >The main problem with the NA (naturally aspirated) FJ20 is the lack of
> >abilty to get a high CR (compression rato). The NA FJ20E cannot get a CR
> >over 9.8 approx, due to the head design. Valve angles in the head are
wrong
> >and pistons get in the way of valves etc. So if you shave the head you
must
> >put reliefs in the pistons, that further lowers the CR. The best you can
> >expect from a NA FJ 2.0 is approximarely 185 - 190 hp, and that is a good
> >one. In NA form the engines are good for an easy 160 - 170 hp, but over
> >this it will cost you a large amount to get those last few hp. In stock
> >form the NA head flows sufficiently to acheive approximately 240hp so
head
> >mods will not improve the HP capacity much if at all. It may even cause
you
> >to lose some driveability at mid range speeds. Rather than looking for
more
> >power from the engine, maybe look at ways to lose less of the available
> >energy to things like cooling fans, alternators, flywheels, body weight,
> >overall gear ratios etc. You can still get really good performance from
> >the NA engine at 170 hp as it is a high torque engine design.
> >
> >The FJ engine was originally designed as the FJ24 NA. In this form the
> >swept volume of the cylinder is sufficient to achieve CR's of 11:1 and
then
> >you can get some real power (260hp is realistic). To the best of my
> >limited knowledge the Z24 crank is not compatible with the FJ24 block.
> >(cylinder spacing is different I am told?). To make an FJ 24, you need
the
> >FJ24 crank, rods and pistons.
> >
> >The FJ's weight is a real downer in NA form in terms of hp/lb or Kw/Kg
> >engine mass. In spite of this I think the FJ is still Nissans best Turbo
> >engine in terms of reliability for power output. SR's do have a habit of
> >breaking exhaust rocker arms when used at reasonably high engine speeds.
> >Check the comments on the SSS automotive site on their engine designs etc
> >for more info on Datsun/Nissan engine designs and especially the FJ
series.
> >Cheers
> >Feral Errol
> >
> >----------
> >From: Leadex <[EMAIL PROTECTED]>
> >To: ozdat <[EMAIL PROTECTED]>
> >Subject: FJ mods
> >Date: Friday, April 21, 2000 6:54
> >
> >I am desperate for some cheap ways to get some power from my FJ running
on
> >webbers. The engine is in good nick as it is, so will a bit of simple
head
> >work and bigger valves get much more power? Also, will Z24 parts fit to
> >build a 2.4L engine?
> >What is a cheap four cylinder place that can supply the parts and do some
> >of the work?
> >
> >Thanks
> >Luke
> >
> >
>
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