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| B110SSS |
Posted: 2003/11/27 2:46 Updated: 2003/11/27 2:46 |
Home away from home   Joined: 2003/7/11 From: Posts: 490 |
 Re: steveo Steveo,
That really is a work of art that you have purchased.
Now this is what you do.
1)Contrary to some of the opinions expressed the standard cast iron exhaust manifold will be okay- you need to make a nice 'j' coming off the bottom flange to mount the turbo to. The best thing to use is plumbers steam pipe bends. Now I know that some of the guys will say that you HAVE to use tuned headers- this is NOT correct and the setup as decribed works fine and is very streetable, without the problems of cracking.
2) Throw that disgusting inlet manifold away and make up a nice log style out of half exhaust pipe bends with a top horizontal tube and the inlet dead in the middle of that tube- this will ensure even fuel/air distribution.
3) I found that the t2 ex a 1.5 Pulsar is TOO small for the A14- it boosted at just over1000 rpm and was a waste of time over 3000 rpm.I ended up using a large t2 ex the 1.8SSS Bluebird- if anything this was too small, however the car still did the business very well. You may be pleasantly surprised how well a small t25 may actually work, however if you could get your hands on the 'big' t2 grab it.
4)Biff the Stomeberg and use a 1.75 SU, very user friendly and easily tunable ( and cheap!)
5) Check very carefully exactly where on the oil pump the feed for the turbo is- DO NOT feed it unfiltered oil ( as yours truly found out the hard way! )
6)If you are going to take the head off concentrate on the exhaust ports/ valves- you need to get that as good as possible.
Now something that may be of interest to the troops is;
Supposedly the ( God forgive me for mentioning this car!) SU carb off an MG Montegro Turbo is a puropose designed blowthrough. I don't know anything further about them but, if they are similar to the ordinary SU would be an excellent , cheap option for the blow through brigade- worth checking out.
Have fun.
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| steveo |
Posted: 2003/11/27 6:57 Updated: 2003/11/27 6:57 |
No life (a.k.a. DattoMaster)   Joined: 2003/10/13 From: newcastle, NSW Posts: 1691 |
Re: steveo I don't know if i mentioned before but there is a spacer plate between the head and head gasket, this changes the compression doesn't it? will the standard fuel pump keep up to the turbo and will a electronic fuel pump be sufficent? and what i've been told is that side draught webber would be better than an SU as long as you jet them right, is this true? what does everyone think?
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| 1200rallycar |
Posted: 2003/11/27 7:13 Updated: 2003/11/27 7:13 |
No life (a.k.a. DattoMaster)  Joined: 2002/3/20 From: Melbourne, Australia Posts: 8221 |
Re: steveo yeah that lowers compression, which i believe has been disscused as to its affects,
the standard pump should keep up with a suck through i believe, someone verify that?
the webber would be more plumbing but if you are going a big turb, yeah you would probably benefit from the extra flow, though the biggest gains would prob be in fixin up the manifolds, id say keep with the stromberg or su for now as the webber requires extra plumbing, i have some pics from datnats that i could send you of some turbo setups u may be interested in, want em?
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| steveo |
Posted: 2003/11/27 7:34 Updated: 2003/11/27 7:34 |
No life (a.k.a. DattoMaster) Joined: 2003/10/13 From: newcastle, NSW Posts: 1691 |
Re: steveo YES PLEASE!!!!!! THANKS MICHAEL! YOU'RE AN INSPIRATION TO ALL MAN KIND!  |
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| 1200rallycar |
Posted: 2003/11/27 8:00 Updated: 2003/11/27 8:00 |
No life (a.k.a. DattoMaster) Joined: 2002/3/20 From: Melbourne, Australia Posts: 8221 |
Re: steveo would you believe i can find the bloody things, im still searchin....
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| Dodgeman |
Posted: 2003/11/27 11:26 Updated: 2003/11/27 11:26 |
No life (a.k.a. DattoMaster)  Joined: 2003/6/27 From: Southern Tablelands N.S.W. Australia Posts: 8287 |
Re: steveo If the Stromberg was run successfully on this engine before, then use it for now. If it is not satisfactory, then the SU is a VERY GOOD choice. These things are one of the few things that the poms truly got right.
The basic design is so good that not only has it been around for over 60 years, but Datsun used it [with minor refinements] on many L series & A series performance engines for many years.
What better recomendation could you get.
Chris
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| steveo |
Posted: 2003/11/28 10:41 Updated: 2003/11/28 10:41 |
No life (a.k.a. DattoMaster) Joined: 2003/10/13 From: newcastle, NSW Posts: 1691 |
Re: steveo Another couple of questions!-
Does electronic ignition make any difference on a turbo motor? because i have a spare dizzy to put on. AND I was given a ICGBCV (In Cab Gated Boost Control Valve) this connects to the oil line on the top of the turbo, right? i want to know if it is recommended to run the boost control valve and the boost gauge off the same line? with a T-peice(i would assume)
if not, where else can i run the gauge from?
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| Dodgeman |
Posted: 2003/11/28 16:03 Updated: 2003/11/28 16:03 |
No life (a.k.a. DattoMaster) Joined: 2003/6/27 From: Southern Tablelands N.S.W. Australia Posts: 8287 |
Re: steveo Electronic distributors are a good thing on ANY motor. As the boost rises, so does the compression pressure, & this takes more voltage before the plug will fire. The electronic distributor will provide it.
The boost guage registers AIR pressure. Tap it into the OUTPUT side of the turbo. Somewhere in the inlet manifold is a good choice.
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| MadTimo |
Posted: 2003/11/28 16:37 Updated: 2003/11/28 16:37 |
Home away from home Joined: 2003/1/7 From: Posts: 828 |
Re: steveo A boost control valve needs to run off the pressure line that controls the WASTEGATE ACTUATOR. How this valve works is to bleed air off so the turbo needs to boost harder to actuate the wastegate. Do NOT run the boost gauge off the same line as the control valve as it will read incorrectly. You want your boost gauge to read the actual boost pressure that reaches the engine so plumb it into your intake manifold somewhere. But, hang on....all the pressure lines I have mentioned will have fuel/air in them....and you don't want to bleed fuel into the atmosphere, nor do you want a fuel line running into your cabin. Aaaaaaahhhhhh, I've confused myself....can someone who has a suck-through system help out here please  |
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| phunkdoktaspok |
Posted: 2003/11/29 0:38 Updated: 2003/11/29 0:38 |
No life (a.k.a. DattoMaster) Joined: 2002/9/23 From: Posts: 2809 |
Re: steveo Ahh so here's a few delemas with a suck through setup. ( although not big ones)
* legally to run a mechanical boost gauge on suck through setup the gauge will have to be mounted externally ( as you cannot have fuel running into the cabin)
* the only legal way to have a dash mounted boost guage is to get an electric one which uses a pressure sensor mounted to the inlet manifold to run electrical signals to the dash.
* adjustable boost controller - like madtimo stated we don't want fuel/air vented into the cabin or for that matter its not a nice thought that it would even be vented into the engine bay.
* the only safe way to control boost levels in a suckthrough setup would be the use of heavier springs on the wastgate actuator.
Please correct me if you think otherwise or know of different ways.
Cheers steve
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| Dodgeman |
Posted: 2003/11/29 10:34 Updated: 2003/11/29 10:34 |
No life (a.k.a. DattoMaster) Joined: 2003/6/27 From: Southern Tablelands N.S.W. Australia Posts: 8287 |
Re: steveo MadTimo & PDS. You are both absolutely right & i should have known better.
The legal & safe way is the electric setup.
A friend of mine has a turbo Saab that cost him $400 to buy, & another $1000 to fix & register. If thats all they are worth, then perhaps the blower guage parts from a wrecker may be worth a look.
Chris
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| ang94541 |
Posted: 2003/11/26 19:29 Updated: 2003/11/26 19:29 |
No life (a.k.a. DattoMaster)  Joined: 1999/12/6 From: Castro Valley,CA USA Posts: 1191 |
Re: steveo You know, I think I've seen some stock turbo exhaust manifolds that seem more restrictive than this. Even if #4 goes "up stream". Now... fix your car and show us what you've learned. have fun angelo |
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| Dodgeman |
Posted: 2003/11/26 10:47 Updated: 2003/11/26 10:47 |
No life (a.k.a. DattoMaster) Joined: 2003/6/27 From: Southern Tablelands N.S.W. Australia Posts: 8287 |
Re: steveo I seees it, but i doan beeeleeve it.
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| Demojob |
Posted: 2003/11/26 10:54 Updated: 2003/11/26 10:54 |
No life (a.k.a. DattoMaster) Joined: 2002/6/8 From: Warwick, QLD Posts: 1170 |
Re: steveo Yeah the exhaust manifold had me wondering, as I hope the bit that gets cut off in teh picture ain't the actual exhaust that goes under teh car. If it is I'd take this back to teh guy and punch him in the head and ask him did it even make any boost?? If so it inly looks like 2 cylinders goto teh turbine.
Cheers
Damo
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| Demojob |
Posted: 2003/11/26 11:02 Updated: 2003/11/26 11:02 |
No life (a.k.a. DattoMaster) Joined: 2002/6/8 From: Warwick, QLD Posts: 1170 |
Re: steveo Yeah I think it's a good start but it wouldn't be a real performance engine, the first thing I'd look at is a custom exhaust manfold, equal tuned headers. But still it's a good start Cheers Damo |
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| Dodgeman |
Posted: 2003/11/26 11:03 Updated: 2003/11/26 11:03 |
No life (a.k.a. DattoMaster) Joined: 2003/6/27 From: Southern Tablelands N.S.W. Australia Posts: 8287 |
Re: steveo It would probably work OK on the street, but the gas from No. 4 cylinder looks like it bounces off the flange block-off & runs in the reverse direction up to the new outlet.
It probably works better than it looks up to a point.
Chris
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| steveo |
Posted: 2003/11/26 11:05 Updated: 2003/11/26 11:05 |
No life (a.k.a. DattoMaster) Joined: 2003/10/13 From: newcastle, NSW Posts: 1691 |
Re: steveo actully i just went out to have another look............... Looks to me that it may be a A14 head or a GX(hope so) and by the look of it he has cut an oval port manifold up and put some hose to connect it to the pipe work that goes to the commpressor side of the turbo and the turbo sits on the sunny manifold. Picture is not that good, it look better in real life!
As i said it's as rough as guts but it's a start
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| steveo |
Posted: 2003/11/26 11:16 Updated: 2003/11/26 11:16 |
No life (a.k.a. DattoMaster) Joined: 2003/10/13 From: newcastle, NSW Posts: 1691 |
Re: steveo YEAH I GOT SOMEWORK TO DO!!!! and don't worry if it doesn't work i'll throwing the thing back at him!!!!! Custom exhaust manifold? where does one obtain this from? would my local exhaust place be able ro help me out?
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| 1200rallycar |
Posted: 2003/11/26 11:29 Updated: 2003/11/26 11:29 |
No life (a.k.a. DattoMaster) Joined: 2002/3/20 From: Melbourne, Australia Posts: 8221 |
Re: steveo didnt you say you make stuff like that for a living? i prob over reacted as the exhaust suprised me, its hard to see, but looks like a good start, one tip, i bought an already done setup and there is still a bit of work and money involved in getting it right (although a lot of expense came from the fuel system, a prob which you dont have being suck through) i still dont see where the exhaust will go once it leaves the turbo, looks like a lot of exhauset fabricating is still required??? it'll be a lot of fun, and you'll learn a lot, actually i was suprise how simple a turbo setup is (even blow through ) when i finished setting it up |
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| 1200rallycar |
Posted: 2003/11/26 11:35 Updated: 2003/11/26 11:35 |
No life (a.k.a. DattoMaster) Joined: 2002/3/20 From: Melbourne, Australia Posts: 8221 |
Re: steveo oh yeah also, i would guess that T25 is a fair bit too big, it is designed for 1.8ltr-2ltr, i think it would take a lot of revs before it came on boost, but i guess it would hit like a frikin hurricane when it did  for street driving a turbo i say dont lower compression too much and use a small turbo, therefore it wont be puss off boost, boost will come in early and there will be enough power up top to get yourself in trouble anyway at a guess i would say the Pulsar ET turbo would be a good bet as this is a 1.5ltr engine i believe, but others who have played more should have a better idea |
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| MadTimo |
Posted: 2003/11/26 11:36 Updated: 2003/11/26 11:36 |
Home away from home Joined: 2003/1/7 From: Posts: 828 |
Re: steveo Yeah, going to your local exhaust shop and getting them to make up a new tubular manifold will be a VERY good start. And I would also make a new inlet manifold. Or at the very least i would replace that 90 degree elbow with a mandrel bend.
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| phunkdoktaspok |
Posted: 2003/11/26 12:47 Updated: 2003/11/26 12:47 |
No life (a.k.a. DattoMaster) Joined: 2002/9/23 From: Posts: 2809 |
Re: steveo All I can say is she's a definate project!
But like a copper once said to my mate when they pulled him over in his old beat up lookin 1200 with A12 turbo;
It might look like #### but I bet it goes like a bull shot in the arse.
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| 1200rallycar |
Posted: 2003/11/26 10:41 Updated: 2003/11/26 10:41 |
No life (a.k.a. DattoMaster) Joined: 2002/3/20 From: Melbourne, Australia Posts: 8221 |
Re: steveo what the hell is going on with that exhaut manifold, please dont tell me that is just blocked at the bottom just out of picture???
i can not see an oil dain for oil cooled turbo, is there one?
do you have a turbo in mind?
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| 1200rallycar |
Posted: 2003/11/26 10:47 Updated: 2003/11/26 10:47 |
No life (a.k.a. DattoMaster) Joined: 2002/3/20 From: Melbourne, Australia Posts: 8221 |
Re: steveo hmm, just looking again, have you got the rest of the exhuast where it leaves the turbo and goes out under the car?
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| steveo |
Posted: 2003/11/26 10:52 Updated: 2003/11/26 10:52 |
No life (a.k.a. DattoMaster) Joined: 2003/10/13 From: newcastle, NSW Posts: 1691 |
Re: steveo exhaust comes out of the dump pipe doesn't it? the exhaust manifold is off a sunny(no hot box) and yes it is blocked up.
the sump has a elbow welded to it and the oil filter has oil lines running from it but they need to be re-connected
dragongoose(Allan) said he has a turbo for sale T-25 i think, i'm thinking about buying it, what do you reakon?
i admit that it is rough but i'm gunna clean it up abit, which may mean re-making some new bits for it but i'm asured that it works(he said a money back guarentee if it didn't)
what does everyone think?????????
he was telling me that he had a pulsar turbo(i assume ET or EXA)
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