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01-03-2003, 09:51 AM | #41 |
Senior Member
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[color=#000000ost_uid0]hi all you guys hows things cool this anyway answer to who ever ask about 18's on an sp yes i have an i have no probs with them an had to make no mods to the guards onto the header situation i was told extractors or headers would be a waste of money because the way the standed manifold has been designed u would recieve no advantages at the wheels an thats were it counts[/colorost_uid0]
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2001 SP20 Mazda Astina Turbo - t28b/b turbo teflon coated forge pistons 20thou o/size , billet rods , whole motor fully balanced - custom body kit - 18"ame's - custom interior - kenwood head unit , pioneer speakers driven by 800 watt amp , kicker subs driven by 1000 watt amps each sub [135.2db at supernats], two 1th caps 4 tv screens dvd player - xbox - airbag suspension with gas strut towers - custom plates an airbrushing on bonnet |
09-03-2003, 10:04 AM | #42 |
Junior Member
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[color=#000000ost_uid0]Sorry odd12c, definite power increase. At least an extra 5-8 kw at the flywheel. not much but definetely noticeable.
A USA post on protege5 forum earlier last year mentioned something about replacing stock headers with a mandrel bend short headers system with equal length tubing but still keeping both cats, and aparently no gains were recorded. If you saw the photo of this design it wouldnt surprise me. It looked like one of those trick twist balloon animals that clowns put together at kids parties. Not sure how it fitted under the bonnet with all those twists, but it didnt need half a brain to figure that gains would be nil. Straight through design always works best. ???[/colorost_uid0]
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E-Manage 4-1 Pacemaker Headers with first cat removed. Hi FLow "Exhaust Technology" Sports Muffler 17" Chrome AME rims with 215/40R17 87Y Hankook Sport Ventus K104 Chromed Fuel Filler Cap K&N panel filter with CAI Carbon fibre rear altezzas tail lights 98,000km and counting as at 1/2/07 (6yr anniversary) 93.2kW ATW Dyno tested. |
26-03-2003, 01:37 PM | #43 |
Junior Member
Join Date: Sep 2002
Location: Sydney, NSW, Australia
Posts: 183
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[color=#000000ost_uid0]Any new info?. I had an exhaust company call Pacemaker yesterday to ask how they were going. They said that they had someone testing them at the moment and that the tester was very happy with them at the moment. He also said that ii shouldn't be much longer before they start selling them. Adelaidesp20, are you the phantom tester that they mentioned. Have you got any new info?
Thanks, TDK[/colorost_uid0]
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2002 TURBO SP20 202KW at the wheels |
04-04-2003, 09:01 AM | #44 |
Junior Member
Join Date: Sep 2002
Location: Sydney, NSW, Australia
Posts: 183
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[color=#000000ost_uid0]It's been almost a month since anyone posted something about this topic. Is there any new info? Whats happenning with the extractors.[/colorost_uid0]
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2002 TURBO SP20 202KW at the wheels |
07-04-2003, 07:32 AM | #45 |
Junior Member
Join Date: Sep 2002
Location: Brisbane, QLD, Australia
Car: Mazdas
Posts: 31
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[quoteost_uid0="-=SP20=-"][color=#000000ost_uid0]I know I can get everything but the pistons,cams & ecu in Oz.[/colorost_uid0][/quoteost_uid0]
[color=#000000ost_uid0]Haltech are Australian and have shut their US office down. I don't see why you can't get one in AU. My MX-5 runs a Haltech E6A. My only complaint with it besides a few problems I'm having at the moment is that the idle is rough, and apparently that rough idle is a common trait with some Haltech installations.[/colorost_uid0] |
05-05-2003, 03:42 PM | #46 |
Junior Member
Join Date: Sep 2002
Location: Sydney, NSW, Australia
Posts: 183
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Has any one got any news on the extractors for the SP20?
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15-07-2003, 08:15 PM | #47 |
AstinaGT Regular
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Done up Sp's
I hope one of u guys can work out how to get the mazdaspeed turbo kit over here for a good price! Totally not fair that america gets the turbo! I would have bought one! :roll:
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06-08-2003, 04:14 PM | #48 |
Junior Member
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hey all. interesting reading. i was thinking about getting headers too, but after reading the comments about headers, i'm now a tad sceptical about them. so to you sp20 owners out there (preferably in sydney), what exhaust system do you have in place (ie full or catback only, what have you done with the 2 cats) and was the increase in power worh the money?
adelaidesp20 (hi), what's the latest on the headers? thanks guys.
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karlo aka KAR10W |
06-08-2003, 09:49 PM | #49 |
Senior Member
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Latest on the headers is in another thread..... and it is looking promising.
I am using a simple cat-back atm, dunno about exactly what power it makes, but the improvement in throttle response is VERY worthwhile. Was only $270 or something with a nice (mild steel) Magnaflow muffler.
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2001 Astina SP20 Precision Power / Pioneer P9 sound system with Directed widescreen video Custom graphics and leather interior Adjustable lowered suspension with monster brakes |
07-08-2003, 07:43 AM | #50 |
Junior Member
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you didn't need to go for a mandrel bent setup critter? i've heard you only need to go for a mandrel bent if there are lots of 90 degree bends in the exhaust tract. is mandrel bent or mild steel better for the sp20?
thanks.
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karlo aka KAR10W |
07-08-2003, 08:10 AM | #51 |
Senior Member
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Mandrel bent is better then press bent as the exhaust maintains the same diameter through all the turns (regardless of angel). Press bends restrict the exhaust as the diameter is smaller in the bends. Press is cheaper as mandrel bending machines are very xpensive and big. Mandrel bent systems flow alot better.
The choice in metal is between Stainless or Mild Steel. Stainless supposedly wont rust so it lasts longer. I think it transfers heat a little better 2 but not 100% sure. Apart from that its cosmetic.
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JynX 1994 Turbo BA Astina 200whp @ 12psi "If you cant drive fast with 90hp..... 900hp wont help you" |
07-08-2003, 09:03 AM | #52 |
Senior Member
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The cat-back I am using is in fact mandrel-bent whilst being mild steel, doesn't have to be stainless to be mandrel-bent......there are pleny of mild steel zorst systems that last plenty long.
The Pacemaker headers use this "cone technology" thing which as I understand it keeps the flow open and smooth like a madrel-bent system without the exxy machinery. We will see....
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2001 Astina SP20 Precision Power / Pioneer P9 sound system with Directed widescreen video Custom graphics and leather interior Adjustable lowered suspension with monster brakes |
07-08-2003, 01:32 PM | #53 |
Stiff Member
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I was under the Impression that Haltecs (Like Autronic and Motec?) Were Aussie developed ;0 that my have changed though...
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