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05-03-2011, 01:28 PM | #1 |
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Chewy's NA8C SR20DET
I dont think i introduced myself when i first became a member back in 08'.
My name is Duy (yui if you cant pronounce it) or you can just call me Chewy. I've owned mazda's since i've had my license. My last car as you all have known was a BG SP Astina. I have recently sold my car and have moved onto another Mazda... with a twist. Although the car itself does not look awesome or what not. i will spend my time cleaning it up and getting it to look better than what it currently is. This is the beginning of a long project. Enjoy. No fancy interior so i didnt take any photos of it. Last edited by chewyryce; 04-05-2011 at 10:09 PM. Reason: relocated photos |
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05-03-2011, 02:01 PM | #2 |
コスモ
Join Date: Dec 2002
Location: Location: Vic
Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD
Posts: 7,888
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Well you've got your work cut out for your self... Good luck
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05-03-2011, 03:10 PM | #3 |
obsessed-incomplete-broke
Join Date: Oct 2008
Location: Brisbane
Car: BA Hardtop/Hatch
Posts: 5,441
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cool! few q's... is that silver thing after the turbo on the exhaust side a BOV? never really understood turbos in their entirety... also silicone hoses on the intake side of things, i thought that was a no-no in a turbo (cause they can suck in or something...idk?)
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05-03-2011, 04:01 PM | #4 |
コスモ
Join Date: Dec 2002
Location: Location: Vic
Car: Mazda '95 Astina I4, '86 B2K and '10 3 MZR-CD
Posts: 7,888
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Looks more like an external wastegate. IMHO I'd sell the blacktop and put a BP back into it.
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05-03-2011, 04:13 PM | #5 |
Junior Member
Join Date: Jan 2011
Location: Ashhurst, NZ
Car: Mazda Astina 1990
Posts: 121
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looks good, and silicone hoses can be used where ever, when you turbo a car you should get the better silicone hoses for the pure fact that they have my layers making them stronger and wont compress under the air etc etc, most turbo cars I've seen use silicone, metal piping is a lot better because it won't compress.
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05-03-2011, 05:19 PM | #6 |
Senior Member
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yeah. external wastegate. has a screamer pipe that im gonna knock off. i dont mind the setup atm. boost kicks in around 3800.
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05-03-2011, 05:43 PM | #7 |
Moderator
Join Date: Oct 2005
Location: Ipswich, Queensland
Car: 2002 Mazda Astina SP20 2006 Mazda 6 GY Wagon
Posts: 9,769
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Nice project, the SR shocked me a bit though!!
So what is planned for it, a lot of MS parts I would imagine?
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05-03-2011, 05:44 PM | #8 |
Senior Member
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Not a bad project car, don't really like CA18's but if it's going strong why mess with it.
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05-03-2011, 06:00 PM | #9 |
Moderator
Join Date: Oct 2005
Location: Ipswich, Queensland
Car: 2002 Mazda Astina SP20 2006 Mazda 6 GY Wagon
Posts: 9,769
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Its an SR20DET though?
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05-03-2011, 06:02 PM | #10 |
Senior Member
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Looks like a CA18 intake manifold, but it shows how much I know about Nissans.
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05-03-2011, 06:08 PM | #11 | |
HONEYWELL REPRESENT
Join Date: Aug 2005
Location: Salisbury - Inner City
Car: 1997 BA Hardtop - Had a 2003 BJii J48 Sport20, and 2x bg SOHC astina hatches
Posts: 5,011
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Quote:
good lookin car man what box r u running and what diff
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05-03-2011, 06:22 PM | #12 |
Moderator
Join Date: Oct 2005
Location: Ipswich, Queensland
Car: 2002 Mazda Astina SP20 2006 Mazda 6 GY Wagon
Posts: 9,769
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Looks like the standard IM to me, the CA18 IM is a lot more squared off:
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05-03-2011, 07:43 PM | #13 |
Senior Member
Join Date: Jun 2009
Location: Baxter, VIC
Car: Sooby B4 - Astina SP parting out
Posts: 2,447
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.....haha it's an SR20DET with stock IM. Beaut motor & certainly a worthy upgrade. You certainly wouldn't go putting the BP back in. Even the BPT would be underpowered compared to this engine unless you modified it & you really wouldn't. My guess is it uses the DET trans so it wouldn't be worth the trouble.
Great project Chewy & my only problem I have is the wierd-ass external w/gate set up. I mean wtf is that about? How the hell does it work coming off the turbo hotside It should be plumbed from off of the zorst manifold! Are you able to explain the reason this is set up like this cause it's doing my head in It's almost like the modifier was trying to replicate workings of an internal wastegate? Why would you wantbthe gate coming off the snail shell? I just don't get it at all.......
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05-03-2011, 08:34 PM | #14 |
Senior Member
Join Date: Sep 2004
Location: n/a
Car: n/a
Posts: 10,929
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Nice. 2nd MX I've seen with a SR20 fitted.
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05-03-2011, 08:52 PM | #15 | |
HONEYWELL REPRESENT
Join Date: Aug 2005
Location: Salisbury - Inner City
Car: 1997 BA Hardtop - Had a 2003 BJii J48 Sport20, and 2x bg SOHC astina hatches
Posts: 5,011
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what about that blue one at lake side that day.. it had 9.5 inch wide rear tires lol
Quote:
i dont really see the issue.. its still on the exhaust manifold side. as it is still relieving the pressure for the turbo. yes it is a little bit up the turbin housing but it still should work fin in my eyes...
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Last edited by Mad Mat; 05-03-2011 at 09:00 PM. |
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06-03-2011, 07:40 AM | #16 |
Senior Member
Join Date: Jun 2009
Location: Baxter, VIC
Car: Sooby B4 - Astina SP parting out
Posts: 2,447
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yeah, no doubt it works Mat but it's efficiency would be compromised. The turbo should be allowed to force the spent gases out into the manifold whereby an external gate is used, free of interference, then the wastegate can discharge gases either back into the zorst system or straight to atmosphere. It seems to work more like an internal gate?
I'm stumped why would you do it unless it was a space-saving exercise? Just curious to know that's all........ I seen alot of custom set ups, in particular, specific manifold design which can be complex & even seen twin external screamers made to go into a single wastegate where most use 2 seperate pipes & gates. Also, do folk realise how hard a steel the turbine exhaust housings are? Extremely hard steel to cut & drill! Chewy, again, I luv the project man
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My Shepherds in the Avatar haha "When the power of love overcomes the love of power, the world will know peace" - Jimi Hendrix Last edited by NaughtyGT; 06-03-2011 at 07:50 AM. |
06-03-2011, 07:43 AM | #17 |
Administrator
Join Date: Mar 2002
Location: melb.vic.au
Car: AZ-1, Astina Hardtop Turbo, BJ Protege, Beetle
Posts: 16,525
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Nice! and the SR is unexpected.
So it's a Eunos Roadster not a Aus-delivered MX-5 (judging from the silver)?
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06-03-2011, 07:54 AM | #18 |
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06-03-2011, 02:34 PM | #19 |
Senior Member
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looks pretty sweet and a interesting project really looking forward t see how this one turns out
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07-03-2011, 09:49 AM | #20 |
Senior Member
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yeah its a eunos roadster. the extra pipe on the turbo is a screamer pipe, dumps exhaust gasses into the atmosphere. highly illegal and yes i will remove it haha. the engine is from a series 2 S14 with VTI cams as you can see from the dip in the back of the engine. non VTI heads are completely flat.
this will be a fun project. and yes marc i will be putting plenty of MS parts on it :P |
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