jackson

Archives of Posts to the NZ MX5 List back in 2003
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Grant Schou

jackson

Post by Grant Schou » Tue Mar 25, 2003 9:54 am

Hi, does anyone have a JR supercharger on their car - would you recommend one. Any problems with installation ?. Are they bolt on and forget or is there a lot of hassles that go with the installation ?. The kit ex. states is now $5100 US, quite reasonable with the exchange rate at the moment c.f. $7100 last year. What about fuel pumps etc ??

Cheers
Grant

Mathew

jackson

Post by Mathew » Tue Mar 25, 2003 9:55 am

Check out
http://filler-up.com/sscor
and also
http://sebringmiata.com
For all you ever wanted to know about Jackson Racing/Sebring/Mazdaspeed supercharger kits (all basically the same kit).
Also check the list archives as Clive posted his thoughts on the Jackson kit he fitted to his car. Lou is selling his car complete with supercharger along with all the extras like knock control and water injection. I don't know what he's asking but its bound to work out much cheaper than buying it all new. There is also the early Sebring Kit off Rays red car that I believe is still for sale through Rotary Power on the North Shore.

Don't believe all the Jackson racing marketing blurb about it driving just like factory with the kit fitted. You can't add 40% more power without driveability suffering a bit. That said, its still a whole lot of fun with over 100kw at the wheels (instead of 87 at the engine) at about 6psi Boost with bucket loads of torque to go with it. The only problem is that the power increase is so seamless that it just feels like a bigger engine and after a while you just get used to it. With a turbo kit you feel the turbo kicking in so its constantly reminding you that its no longer standard. The Supercharger kits are also a lot harder to get more power out of, compared to a turbo kits that can be upgraded much easier. Though BR Performnace http://BRperformance.com are producing a "coldside" kit for the Jackson supercharger that looks very nice and gets rid of some of the design flaws of the origional kit.

M@
91 with Mazdaspeed fitted Supercharger
http://miata.cardomain.com/id/imbecl

lou Girardin

jackson

Post by lou Girardin » Tue Mar 25, 2003 10:51 am

It's quite easy if you can do basic mechanical work. It should take approx 5 -
6 hours. The kit is complete as it comes, although there are upgrade paths
that do require aftermarket fuel pumps, injectors, timing controls etc.
I strongly recommend some form of timing control to allow more ignition
advance to be used, this will improve low rev torque. Water injection is also
a low cost detonation control method that allows advanced timing even at
higher boost levels. Once it's set up it is as trouble free as stock, there is
almost no maintenance other than checking belt tension and changing the
superchargers oil every 100,000 km's.
Lou

rotarypower

jackson

Post by rotarypower » Tue Mar 25, 2003 11:55 am

Grant
If you are interested in buying a kit i have a second hand sebring supercharger kit thats only done 18k has $500 of spares with it .it is for a 1600 90>93 mx5.ring me for price and we can also install it if required.ph Glenn at rotarypower ltd ,09 4435762

Grant Schou wrote:

[...]

lou Girardin

jackson

Post by lou Girardin » Tue Mar 25, 2003 12:03 pm

On my 1.6 the recommended timing setting is 6 - 8 degrees which does feel flat
at low revs. With knock sensor and WI I'm running 14 degrees, a huge
difference in torque.
My WI set-up is home built, cost about $150 - $200. You really don't need all
the sophistication of an Aquamist kit.
If I kept my car, I would consider a coldside kit ( 180rwhp) from BR
Performance or an M62 (200+ rwhp) blower from them. As you go beyond about 180
rwhp a diff upgrade becomes necessary on 1.6's.
The turbo vs SC argument is an ongoing one on the various forums.
Road turbos have been capable of more power, until the developement of larger
superchargers recently. Ultimately though, a turbo will give more for race
use.
The best description I've heard, turbos are like a huge rubber band pulling
the car. SC's have stock power characteristics only more so or even much more
so.
Even with 150 - 160 rwhp mine will spin up the tyres in 3rd on wet roads and
this is on grippy rubber with an LSD. I've heard that 250 rwhp will do that on
dry roads!
It's like my bike, it'll do 170km/h in 2nd, but there's all the Traffic Nazis
waiting to take your licence over 150. So, top end power becomes a moot point
on public roads.
Lou

Grant Schou

jackson

Post by Grant Schou » Tue Mar 25, 2003 12:15 pm

Hi Lou, so if I installed a JR, without timing control, I would need to adjust timing back to 10deg (instead of advanced 14deg). I priced a water injection kit at $1000NZ. What are your thoughts on turbo vs SC. Do you quickly get used to the power delivered by the SC and wish for a turbo instead ??

Cheers
Grant

SLYDIT
Keep calm, Forum Moderator here.
Keep calm, Forum Moderator here.
Posts: 1610
Joined: Sun May 21, 2006 6:18 pm
Location: In the Garage.

jackson

Post by SLYDIT » Tue Mar 25, 2003 6:56 pm

Go on miata.net and do a search in the power section
on the bipes control unit.
Its based on a MSD unit, has air temp and boost inputs
and can be adjusted to how much retard it pulls .At
the moment the completley redesigned unit(far
supereior to the standard MSD) is selling for just
US$200 and allows you to run 14 degrees initial timing without detonation.
By the way... for 7 grand you can build a very tough
turbo system with a link computor and intercooler,
much better than a non upgradable supercharger!!!
(Bunkering down waiting for Lous reply. :)
Glenn
RED '90 TURBO.
SCARING PRIUS DRIVERS SINCE 2002

lou Girardin

jackson

Post by lou Girardin » Wed Mar 26, 2003 8:41 am

Au contraire, mon ami.
You're quite right, if you like turbos. Seriously though, I went SC because I
could fit it myself.
Lou

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