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John Stafford
Goo Roo
Qld.
Soarer UZZ31 GT-L V8, limited edition Subaru WRX

Posts: 1076
Reg: 02-2010

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Wednesday, August 17, 2016 - 10:16 pm, by:  John Stafford (Johng12) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi all,
I am welcoming myself to the elite supercharged 1UZfe club :-)

I have just transplanted a Bullet engineered and fitted M90 to my LPG vapour injection blue 31. Great addition. It will now hopefully keep up with my 2005 WRX special edition WRP10 (which has sound wave separated hydrogen injection to boost economy and power).

After completing the install and taking the car for a drive I found that when I give the car the stick, full throttle, off a standing start it dies shortly after take of and then refires over and over, a dead loss if you want to get going quickly. It seemed like fuel starvation, which I had experienced previously when my fuel pump ecu connection was faulty, only giving me 8 volts instead of 12 volts under heavy acceleration.
So the first thing I did was to check, clean and lube the connection for the fuel ecu, which I had re routed to the boot for better cooling and access. I then went ahead and fitted a new 255 ltr/hr Walbro fuel pump to the car, that I had previously bought to try and solve a dieing problem, which ended up being due the bad connection on the fuel ecu.
All fixed now! great.
Full throttle is all go. The Soarer might be able to keep up with my WRX now? :-)

I have purchased a wolf computer for it to give me some more advance and ability to adjust things to get the most out of it.
Would there be any advantage if I fitted some 440cc grey 2JZ injectors (I may be able to get a set in Thailand fairly cheap) or will the standard injectors do all I want, as I understand that too much power in these M90s translates into too much un coolable heat (no intercooler), so defeating the extra power that you are generating??

I have yet to fit the ceramic bullet extractors that I have for it.

Cheers John
Mark Brunning
Tinkerer
Vic
V8 GTL-Limited

Posts: 39
Reg: 05-2014

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Thursday, August 18, 2016 - 01:07 pm, by:  Mark Brunning (96limited) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Great to hear John, has it been dynoed yet, figures? I'm interested as I have a 96 v8 to be supercharged and will be chatting to bullet
John Stafford
Goo Roo
Qld.
Soarer UZZ31 GT-L V8, limited edition superchaged, Subaru WRX

Posts: 1077
Reg: 02-2010

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Thursday, August 18, 2016 - 03:39 pm, by:  John Stafford (Johng12) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi Mark,
Did you buy that green one in Melbourne in a car yard recently? It looked like a great buy.

No dyno yet but with the extractors on the previous car that Bullet did it ran 198 klws at the wheels.

The M90 is outdated now, the twin screw is the go but I got this for the right price. Waited 6 years to get it.
All the best. Bullet costs but they have done plenty and seem to have it together pretty well I would think.

I think that Peter Taplin has one that he did on John Scotts car, he called the black something??
Looked really good but these may need internals done on the later V8s. Early ones like mine were stronger. So maybe the M90 is the go for you unless you plan to strengthen the inside of the engine??
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 573
Reg: 08-2005

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Thursday, August 18, 2016 - 04:57 pm, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Can anyone tell when the skinny conrod v8's started , either from engine number or build date.

I also have bought a yella terra (M90) kit for my car and am unsure of what size pulley to put on it

It currently has an 8lb pulley and was on an early motor with 315cc injectors,RRFR, and a piggyback making 230RWKW and 550NM
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 574
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Thursday, August 18, 2016 - 04:59 pm, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Sorry, mine is a 7/95 model
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black!

Posts: 1676
Reg: 04-2006

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Thursday, August 18, 2016 - 05:56 pm, by:  Tai Johnsen (Privatejohnsen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

You are in the grey area...

Mine was 94 and it seemingly had the strong rods..

http://soarercentral.com/cgi-bin/sc-forum/discus.cgi?pg=prev&topic=121829&page=250711



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Mark Brunning
Tinkerer
Vic
V8 GTL-Limited

Posts: 40
Reg: 05-2014

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Thursday, August 18, 2016 - 06:06 pm, by:  Mark Brunning (96limited) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hi john S,

No I bought my about 3 years back had costa from race tune put hurricane headers and dual 3 inch , sounds amazing , on the day it dyno about 165-170rwkw, only bfi done, so that's why I was interested . Yes the engine will have skinny rods so may look at getting the engine redone as want to get the wolf 550 done ecu and aim for about 250rwkw eventually
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 575
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Thursday, August 18, 2016 - 06:33 pm, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks for that Tai, will go safe at 5.5 lb
Scott Vim
Goo Roo
Vic
Soarer (1uz) Chaser (1jz)

Posts: 1619
Reg: 12-2010

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Thursday, August 18, 2016 - 09:48 pm, by:  Scott Vim (1uz1jz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The 'weaker' rod 1uz are still pretty strong. Have heard of people pushing them but I would limit around 220rwkw just to have a reliable car. I've heard of people destroying N/A motors within days, weeks or months of going forced induction on other cars. My Soarer is a 1993 and has done 150,000km on an m90. Has clocked over 300,000km in total. People say they need a rebuild for blown applications. I beg to differ.

I would say above 250rwkw I would start to look at decompressing the motor on an early 1uz. The m90 will never be a power monster so I would say its pretty safe on any 1uz as long as fuel is ok.
Scott Vim
Goo Roo
Vic
Soarer (1uz) Chaser (1jz)

Posts: 1620
Reg: 12-2010

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Thursday, August 18, 2016 - 10:37 pm, by:  Scott Vim (1uz1jz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Oh and by the way....welcome to the club.
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 576
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Friday, August 19, 2016 - 11:56 am, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks Scott
John Stafford
Goo Roo
Qld.
Soarer UZZ31 GT-L V8, limited edition superchaged, Subaru WRX

Posts: 1078
Reg: 02-2010

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Friday, August 19, 2016 - 05:21 pm, by:  John Stafford (Johng12) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hey Scott, The car goes great and the petrol economy is fantastic due to that little butterfly bypass, restricting the air flow on cruise and light throttle. Nearly as cheap as the LPG now!
But it really goes well of full throttle. Very happy.

I think it is the way that I have fitted my manifold injection points for the LPG but not getting enough gas into the inlets to work properly on LPG yet. I may have to pull it all off and do it again. It shows that my LPG injectors are too small but I know they are not, so must be restriction in the way I have run the hoses or the position that I have chosen to drill and tap the jets into the manifold.

Could you send me a photo of where your injector jets go into the manifold, so I can see if I have them going in, in the right place.
Thanks
John Stafford
Goo Roo
Qld.
Soarer UZZ31 GT-L V8, limited edition superchaged, Subaru WRX

Posts: 1079
Reg: 02-2010

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Sunday, August 21, 2016 - 07:19 pm, by:  John Stafford (Johng12) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

After putting the 255 ltrs/hr pump in, I am amazed at how noisy it is. I remember when I bought it and fitted it to my car to try and fix a previous problem, I took it back out and put the original one back because of the noise, even after I put some extra insulation in behind the back seat.
Is this what we have to expect from these more highly powered pumps?
It is too late now, over a year since I bought it, to return it if the noise is non normal. Just wondered at people experience with these Walbro pumps?
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 577
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Monday, August 22, 2016 - 11:20 am, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ross Pesina was commenting either on here or FB on this subject, his opinion was that the Walbro 455 pump was a better pump and much quieter than the 255
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 578
Reg: 08-2005

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Monday, August 22, 2016 - 11:22 am, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Did the blower make much difference to your car, I have yet to fit mine
John Stafford
Goo Roo
Qld.
Soarer UZZ31 GT-L V8, limited edition superchaged, Subaru WRX

Posts: 1080
Reg: 02-2010

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Monday, August 22, 2016 - 01:02 pm, by:  John Stafford (Johng12) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks John for that info. I think that the noise may be related to it not being tightly secured, as the petrol proof rubber bedding is not like new now. May be able to resecure it sometime.

As for the performance difference it is just terrific. Goes really well. You will be impressed I am sure if your set up is good. I don't have extractors on at this time. that is another job but that surely will help push things up too and then the wolf computer should fix both the power and the economy issue on LPG as I will be able to get some timing in there with the higher octane fuel.

I got the LPG working today too, not as powerful as the 98 petrol but still a big step up from before. I might get more power if I made it less economical?
I had to increase the amount going in and I had to put the pressure up from 1.27 to 1.57 bar. It would not idle without more pressure. But, now great. Most impressed. I will see the price difference between using 98 and LPg after a few tests.
I
Scott Vim
Goo Roo
Vic
Soarer (1uz) Chaser (1jz)

Posts: 1621
Reg: 12-2010

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Monday, August 22, 2016 - 02:08 pm, by:  Scott Vim (1uz1jz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Extractors will not help you with a blown motor or at least it didn't help for me. It made exactly the same power on slightly less boost. So it made the engine more efficient but to get more power the only way is to put a smaller pulley on the blower.
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 579
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Monday, August 22, 2016 - 02:54 pm, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I don't intend to put extractors on mine - of a job
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 580
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Monday, August 22, 2016 - 03:01 pm, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I have ordered a 5.5 lb pulley from yells terra and will start off with that with stock fuel pump and nil regulator, as soon as I can get a Walbro and a fpr the 8 lb pulley will go back on
John Stafford
Goo Roo
Qld.
Soarer UZZ31 GT-L V8, limited edition superchaged, Subaru WRX

Posts: 1081
Reg: 02-2010

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Monday, August 22, 2016 - 03:48 pm, by:  John Stafford (Johng12) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Ok Scott, that is good to know, maybe give it a miss.
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black!

Posts: 1678
Reg: 04-2006

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Monday, August 22, 2016 - 06:47 pm, by:  Tai Johnsen (Privatejohnsen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The US TT Supra fuel pump is a Denso unit and can flow enough for 600HP and is barely audible.

I got mine from driftmotion for about $260.

OEM reliability and it was easy enough to fit on the standard hanger. Even with the 12V mod it's just audiable.
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 581
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Monday, August 22, 2016 - 07:18 pm, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

What is the 12volt mod Tai?
John Street
DieHard
NSW
95 v8 , 2015 VW Jetta TDI, 2009 Saab 9-3 Turbo

Posts: 582
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Monday, August 22, 2016 - 07:25 pm, by:  John Street (Rex2ce) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

John the Supra pump is available from Rockauto for $180 usd delivered
Tai Johnsen
Goo Roo
QLD
JZZ30 Pov Manual LSD & black!

Posts: 1679
Reg: 04-2006

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Wednesday, August 24, 2016 - 05:32 am, by:  Tai Johnsen (Privatejohnsen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The stock ECU outputs 9V to the fuel pump on low engine demand and 12V when there is high load.

The 12V mod makes the pump run at 12V all the time which eliminates the possibility of the fuel rail pressure changing or dropping before the switch over point.

The safest way is to use the fuel pump ECU 9-12V output as the signal input to a relay that passes the full 12V.

This retains all of the safety features of the fuel pump ECU and you can still perform the fuel pump ECU bypass from the diagnostics port if there are future issues.
Ross Pesina
Goo Roo
Vic
Soarer T, Mk3 Supra TT, Mk4 Supra TT, Z32 TT

Posts: 1082
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Saturday, September 17, 2016 - 08:18 am, by:  Ross Pesina (Ross79) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

John, sorry to hear about the fire but sounds like it will be back on the road very soon.

As for pumps, get a walbro 450lph. I have them in all my cars.
They are stock quiet, will outflow most pumps and cost only $200. And they're very reliable, just make sure it's genuine. They've been out a while now and i'm yet to hear of any failures.

I had a walbro 255 and after a couple of weeks i couldn't handle the noise anymore and binned it. Switched to the 450 and i have a pump i can't hear again. That was a few years ago and it's still going strong.

I did try a stealth 320lph in another car which too was quiet, but have heard from its new owner that it has now failed meaning it only lasted a year. Only reason i tried a stealth is vpw had them on sale.

Currently i'm running the 450 in both my supras, soarer and 300zx's.

They are a little fatter than the 255 but still fit in the stock hanger. Make sure you use the insulator that comes with it to further prevent noise. I purchased some stainless cable ties to make sure it stays put.

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