About 1990 323 Astina 1.8 DOCH Engine

afh · 20-10-2007, 07:51 PM

Hi to all!
I would like to apply to my stock engine a Turbo kit. I reckon that the factory made turbo will be the best solution. Do you think 2004 MX5 SP Turbo could be suited to my engine or I should try to get Japanise GTR BP 1.8 Turbo kit?

I do not need excessive power, I just wanna get a bit extra pumping, that's all

My car used unleaded petrol, but there is no CAT on it. I just wanna raise the power to around 160 HP.

89sp1.8 · 21-10-2007, 05:50 PM

theres alot more to it than that..use the search tool on the forum this question has been answered many of times

Cosmo Dude · 21-10-2007, 05:54 PM

As a start you would be better using the GTX manifold and turbo. The Mx-5 set puts the turbo in the wrong place.

dru · 22-10-2007, 08:29 AM

As Cosmo said, you would be better off using the GTX turbo (VJ20) + manifold to begin with, get all your piping + a gtx/r intercooler. There are a few things that you will need, its not just a bolt on procedure. There's a few threads on fordlaser.com about doing the same thing - search it there.

project.r.racing · 22-10-2007, 08:32 AM

Quote:

Originally Posted by afh

I do not need excessive power, I just wanna get a bit extra pumping, that's all

My car used unleaded petrol, but there is no CAT on it. I just wanna raise the power to around 160 HP.

Why do you need a turbo then? 120hp -> 160hp is quite easy without a turbo.

MAztinA 323 · 22-10-2007, 06:11 PM

umm yea you cant just go down to mazda, buy a turbo, turn a few spanners and have a turboed car that will last. do you know anything about strengthening the internals?

RedLineResident · 22-10-2007, 06:38 PM

turboing a car is a nightmare. A mate of mine turboes his 85RWD celica the dodgy way and that was s*** from day one and blew the engine completelly 3-4 months later.

now he's cut sick and is putting a 1JZ into it, doing it properly ($8,000 later) but it should be damn quick.

IvarR · 29-10-2007, 05:54 AM

Well 160hp is easy.
I dynoed over that on my astina with BP.

I had the J-Spec BP (from japan)+ECU
Custom made exhaust manifold
K/U Hybrid AFM
Corksport cams
Ported head + ported intake manifold
2.5" exhaust
Denso Iridium plugs
Magnecor leads.
CAI

You tune the AFR with the K/U Hybrid AFM and you dont need standalone to fine tune it.

IvarR

RedLineResident · 29-10-2007, 09:26 AM

Thats still a bit of work. Not a simple "bolt on" approach.

Atlantis · 16-03-2008, 06:36 PM

Thank you guys! for being very helpful...

I have decided not to turbo my car. As I told you, I don't have a CAT on it and my country rules are okay for having it without CAT. It means I can use the preCAT ECU so that I will get around 140ps insead of 128ps. That's enough to me. Does anybody have an idea how to get that preCAT ECU?

Atlantis · 16-03-2008, 06:37 PM

BTW, I was afh, but I am atlantis now

dave0r · 16-03-2008, 06:41 PM

using a pre-cat engine to make more than 160hp..easy i did it im making 138whp, so + 20% drive lose = about 165hp

but i did use a link ecu...but with stock BP cams..no re-grinds or anything

stewy · 16-03-2008, 09:24 PM

Users on here obviously dont realise that BP NA And BPT share the same rods, the same crank, the same heads and the same everything bar cam profiles and pistons

and even then, the only difference is BP na has higher compression pistons.

Theres no reason you cant do it, its just easier to buy a complete package.

Oh btw, as long as you have a turbo tps, you can run a a bpt from a bp twin cam stock engine. Just gotta keep the boost low.

Atlantis · 17-03-2008, 03:44 AM

Stewy, so what you mean I can have BPT/ GTX turbo kit and apply to my engine without any hassle. I really don' t want a lot power, I like the idea of 2003 MX5 SE... I need around 170hp.

Atlantis · 17-03-2008, 03:53 AM

I realise that the compression ratio of my engine is higher than BPT as turbo needs some energy from exhaust gas... Do you guys think it is better to have a complete BPT engine rather than getting only the turbo set of BPT? THe problem is I do not have BPT engine over here, actually I am the only one having BP engine! So I may stick with the idea of having preCAT and its peripherals... Need your valuable comments now

Atlantis · 17-03-2008, 03:57 AM

Stewy, What do u mean by saying keep the boost low? What would be the max pressure without having any drama with my BP engine with BPT turbo kit? As I said, I am not able to get a complrte BPT engine in Turkey...

20-10-2007, 07:51 PM	#1
afh Junior Member Join Date: Oct 2007 Location: Turkey Car: 1990 323 Liftback GT Posts: 1	About 1990 323 Astina 1.8 DOCH Engine Hi to all! I would like to apply to my stock engine a Turbo kit. I reckon that the factory made turbo will be the best solution. Do you think 2004 MX5 SP Turbo could be suited to my engine or I should try to get Japanise GTR BP 1.8 Turbo kit? I do not need excessive power, I just wanna get a bit extra pumping, that's all My car used unleaded petrol, but there is no CAT on it. I just wanna raise the power to around 160 HP.

21-10-2007, 05:54 PM	#3
Cosmo Dude 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 View Photos By: Cosmo Dude	As a start you would be better using the GTX manifold and turbo. The Mx-5 set puts the turbo in the wrong place. __________________ My 'stina Hatch

22-10-2007, 08:29 AM	#4
dru AstinaGT Regular Join Date: Mar 2005 Location: NSW, Sydney. Car: Mazda Astina BG SP Posts: 478 View Photos By: dru	As Cosmo said, you would be better off using the GTX turbo (VJ20) + manifold to begin with, get all your piping + a gtx/r intercooler. There are a few things that you will need, its not just a bolt on procedure. There's a few threads on fordlaser.com about doing the same thing - search it there. __________________

22-10-2007, 06:11 PM	#6
MAztinA 323 Senior Member Join Date: Feb 2006 Location: Eastwood, Sydney Car: 1989 Nissan Silvia CA18DET Posts: 583 View Photos By: MAztinA 323	umm yea you cant just go down to mazda, buy a turbo, turn a few spanners and have a turboed car that will last. do you know anything about strengthening the internals? __________________

22-10-2007, 06:38 PM	#7
RedLineResident Senior Member Join Date: Oct 2006 Location: Adelaide Car: BA V6 Hardtop 5 Speed & 97 Prelude VTIR Posts: 1,518 View Photos By: RedLineResident	turboing a car is a nightmare. A mate of mine turboes his 85RWD celica the dodgy way and that was s*** from day one and blew the engine completelly 3-4 months later. now he's cut sick and is putting a 1JZ into it, doing it properly ($8,000 later) but it should be damn quick. __________________ "Amateurs practice until they get it right." "Professionals practice until they can't get it wrong."

21-10-2007, 05:50 PM	#2
89sp1.8 Senior Member Join Date: May 2005 Location: brisbane Car: bg astina Posts: 1,186	theres alot more to it than that..use the search tool on the forum this question has been answered many of times

29-10-2007, 05:54 AM	#8
IvarR Junior Member Join Date: Mar 2007 Location: Estonia Car: Mazda 323GTI Supercharged Posts: 3 View Photos By: IvarR	Well 160hp is easy. I dynoed over that on my astina with BP. I had the J-Spec BP (from japan)+ECU Custom made exhaust manifold K/U Hybrid AFM Corksport cams Ported head + ported intake manifold 2.5" exhaust Denso Iridium plugs Magnecor leads. CAI You tune the AFR with the K/U Hybrid AFM and you dont need standalone to fine tune it. IvarR __________________ www.db-hp.ee

29-10-2007, 09:26 AM	#9
RedLineResident Senior Member Join Date: Oct 2006 Location: Adelaide Car: BA V6 Hardtop 5 Speed & 97 Prelude VTIR Posts: 1,518 View Photos By: RedLineResident	Thats still a bit of work. Not a simple "bolt on" approach. __________________ "Amateurs practice until they get it right." "Professionals practice until they can't get it wrong."

16-03-2008, 06:36 PM	#10
Atlantis Junior Member Join Date: Mar 2008 Location: Ankara Car: Mazda Posts: 39	Thank you guys! for being very helpful... I have decided not to turbo my car. As I told you, I don't have a CAT on it and my country rules are okay for having it without CAT. It means I can use the preCAT ECU so that I will get around 140ps insead of 128ps. That's enough to me. Does anybody have an idea how to get that preCAT ECU? __________________ Speaking is Silver, however, Silencing is Gold.

16-03-2008, 06:37 PM	#11
Atlantis Junior Member Join Date: Mar 2008 Location: Ankara Car: Mazda Posts: 39	BTW, I was afh, but I am atlantis now __________________ Speaking is Silver, however, Silencing is Gold.

16-03-2008, 06:41 PM	#12
dave0r AstinaGT Regular Join Date: Mar 2006 Location: Tauranga Car: Astina GT Turbo Posts: 302 View Photos By: dave0r	using a pre-cat engine to make more than 160hp..easy i did it im making 138whp, so + 20% drive lose = about 165hp but i did use a link ecu...but with stock BP cams..no re-grinds or anything __________________ 1996 ST205 Toyota Celica GT4 Gone 1991 Astina GT, 102wkw/138whp Built a KL-ZE 220whp engine for a KF Laser

16-03-2008, 09:24 PM	#13
stewy Junior Member Join Date: Feb 2006 Location: perth wa Car: BG Astina and BG sedan(BPT) Posts: 164 View Photos By: stewy	Users on here obviously dont realise that BP NA And BPT share the same rods, the same crank, the same heads and the same everything bar cam profiles and pistons and even then, the only difference is BP na has higher compression pistons. Theres no reason you cant do it, its just easier to buy a complete package. Oh btw, as long as you have a turbo tps, you can run a a bpt from a bp twin cam stock engine. Just gotta keep the boost low. __________________ 2003 VY Commo new daily 1991 BG Sedan - Weekender === BPT (Garrett T2871r, Autronic SMC, 500cc injectors, FMIC, Forged Internals, Custom BIG front brakes Rx7 4-pot, Coilovers, Tuned at 250whp with lazy valve springs) She's a weapon.

17-03-2008, 03:44 AM	#14
Atlantis Junior Member Join Date: Mar 2008 Location: Ankara Car: Mazda Posts: 39	Stewy, so what you mean I can have BPT/ GTX turbo kit and apply to my engine without any hassle. I really don' t want a lot power, I like the idea of 2003 MX5 SE... I need around 170hp. __________________ Speaking is Silver, however, Silencing is Gold.

17-03-2008, 03:53 AM	#15
Atlantis Junior Member Join Date: Mar 2008 Location: Ankara Car: Mazda Posts: 39	I realise that the compression ratio of my engine is higher than BPT as turbo needs some energy from exhaust gas... Do you guys think it is better to have a complete BPT engine rather than getting only the turbo set of BPT? THe problem is I do not have BPT engine over here, actually I am the only one having BP engine! So I may stick with the idea of having preCAT and its peripherals... Need your valuable comments now __________________ Speaking is Silver, however, Silencing is Gold.

17-03-2008, 03:57 AM	#16
Atlantis Junior Member Join Date: Mar 2008 Location: Ankara Car: Mazda Posts: 39	Stewy, What do u mean by saying keep the boost low? What would be the max pressure without having any drama with my BP engine with BPT turbo kit? As I said, I am not able to get a complrte BPT engine in Turkey... __________________ Speaking is Silver, however, Silencing is Gold.