Mazda Rotary Club

General => General Technical => Topic started by: SCOOMER on August 25, 2005, 06:24:23 PM

Title: which 3 bar map sensor and spark plugs?
Post by: SCOOMER on August 25, 2005, 06:24:23 PM
Im after a 3 bar map sensor and just wondering which is the most common/best to use?

Also spark plugs, whats the best combo for higher boost?

Ive read people use 9\'s alround and some with 10\'s and 11\'s.

Ive done a search on plugs and iridium plugs have failed a few times causing engine rebuild time, is this the case or mith?

Cheers Scott
Title: which 3 bar map sensor and spark plugs?
Post by: Freddy on August 25, 2005, 06:54:27 PM
I use HKS iridium racing 11\'s. They seem to do the job well under hard accelration. I think 10.5\'s would be just as good.

I dont know of any plugs causing rebuilds. I think typically you would pay around £125 a set in the UK. If you searched around, you could picked them up for cheaper. I paid £80 for my last set. If theres enough interest, could get a group buy. :)
Title: which 3 bar map sensor and spark plugs?
Post by: Fish on August 25, 2005, 07:00:54 PM
I have an Apexi (Denso) map sensor, but most people fit the GM 3 Bar sensor as it is easier to obtain.

What level are you classing as higher boost?

Fish
Title: which 3 bar map sensor and spark plugs?
Post by: SCOOMER on August 25, 2005, 07:05:10 PM
Freedy, is that 11\'s trailing and leading?

Fish, 1.2Bar maybe more.

Cheers Scott
Title: which 3 bar map sensor and spark plugs?
Post by: asp on August 25, 2005, 07:09:13 PM
wen do u hav to upgrade the map sensor,
Title: which 3 bar map sensor and spark plugs?
Post by: rx7veilside on August 25, 2005, 07:13:59 PM
standard map sensor will only read up to a tad under 1.2 bar u wld prob be ok running 1.2bar with standard map sensor as i asked this question of geff at re worx.i was going to run 1.2 but as i got 494fwhp at 1.1 i thought i wld wait a bit
Title: which 3 bar map sensor and spark plugs?
Post by: SCOOMER on August 25, 2005, 07:14:59 PM
Asp, in a couple of weeks why, you know somthing i dont :)

Scott
Title: which 3 bar map sensor and spark plugs?
Post by: 20B_boy on August 25, 2005, 07:23:48 PM
We use Delco 3bar\'s which is what MoTeC supply.

We sell NGK Iridium 10s and 11s by the truck load both here and down under. If there is interest we could do a GB also...

There have been reports of Denso plugs failing I think - e.g. Gary Gooding incident from recollection?? Cant say as we\'ve ever had problems with the NGKs :)

Rich

PS Scott, I think Asp was asking when the stock MAP sensor becomes inadequate for tuning, rather than when you need one :D
Title: which 3 bar map sensor and spark plugs?
Post by: asp on August 25, 2005, 07:30:39 PM
Quote from: 20B_boyPS Scott, I think Asp was asking when the stock MAP sensor becomes inadequate for tuning, rather than when you need one :D

true,

iv never looked in to changin the map sensor,how much r thay,
Title: which 3 bar map sensor and spark plugs?
Post by: Freddy on August 25, 2005, 07:52:56 PM
Quote from: SCOOMERFreedy, is that 11\'s trailing and leading?


Thats right mate. So go on, what do you have planned? Have you changed your single turbo? :)
Title: which 3 bar map sensor and spark plugs?
Post by: 20B_boy on August 25, 2005, 07:53:53 PM
Quote from: asptrue,

iv never looked in to changin the map sensor,how much r thay,
As Paul said, the stock one with the power fc is good for a bit over a bar. The delco 3 bars are 70+vat.
Title: which 3 bar map sensor and spark plugs?
Post by: SCOOMER on August 25, 2005, 09:20:01 PM
Sorry Asp didnt read your post right, just me being thick :(

Freddy, im just getting it remapped and fitting a bigger intercooler (Greddy 3 row) with water injection. Have you experienced any flooding by running colder plugs.

Scott
Title: which 3 bar map sensor and spark plugs?
Post by: 20B_boy on August 25, 2005, 11:27:09 PM
Quote from: SCOOMERHave you experienced any flooding by running colder plugs.

Scott
A few people seem to, but thats possibly related to other issues with the car too. I have 10s and 11s in my daily which does a 5 min trip into work and back 3 days a week plus a few long runs to the coast and back every couple of days. If you are running high boost then I would say cold plugs are definitely paramount. We see a lot of cars on the dyno get a bit squirly ignition-wise when the boost is cranked up, cold plugs usually does the trick unless you are shooting for real big numbers.
Title: which 3 bar map sensor and spark plugs?
Post by: pete.f on August 28, 2005, 08:44:55 PM
the gm map sensoris the easiest to find and probably the cheapest to buy too. most tuners have the data needed to put into the power fc for the gm map sensor too.