"The Subaru Technica international corporation the commodity sets the one for in presser " fuel pump for competition ", we sell the Subaru dealer of entire country, via the STI shop.
" The fuel pump for competition " is the fuel deviation prevention functional equipped fuel pump for the new in presser. There are times when the high G revolution which is continued is done during motor sport having a match of rally, gymkhana, dirt trial and race/lace et cetera, when the fuel remaining amount inside the fuel tank is small, when the fuel has been inclined there are times when the fuel being cut off is caused. In this kind of state, you cannot obtain the kind of acceleration which is thought and become time loss. " The フュ for this competition - the l pump " has added the chamber which inserted the divider of the rubber make around the fuel sucking out mouth, 1. By the fact that the fuel approximately of 5 liters is saved the among those, the fuel being cut off at the time of the ロータンク is prevented."

 

"The " fuel pump " is the fuel deviation prevention functional equipped fuel pump for the new in presser. There are times when high G revolution is done during speed event having a match of rally, gymkhana and dirt trial et cetera, when the remaining amount of the fuel tank is small, when the fuel has been inclined, there are times when fuel being cut off condition is caused. In this kind of circumstance, you cannot obtain the kind of acceleration which is thought and become time loss. This " fuel pump " has added the chamber of the resin make around the housing internal combustion charge sucking out mouth, by the fact that the fuel is accumulated the among those fuel being cut off condition is made difficult to occur at the time of revolution * acceleration."

 

Still reading this with interest.

 

I know what the blurb says but ... it doen't look like 5 litres, for a start you wouldn't get it in the tank ?

Sense check required, John F if you read what was your view on the chamber capacity?

bob

 

It's maybe not 5 litres, but reading the blurb there seems to be some sort of rubber mouth/bellows which perhaps sits on the bottom of the tank and traps more fuel ?

As long as it can hold enough fuel for 5 - 10 seconds (about 1 litre max at 255 litres/hr) then it should be sufficient to do the job in 99.99% of cases.

John

 

John agreed, I'm hoping John Felstead reads this and comments, he fitted one to his STi when he had it and would be very able to comment.

bob

 

Morning Bob and John.

The surge chamber holds about 800ml, its designed in a way that under hard acceleration fuel cant escape from the pickup sock of the pump as it has an entry point on the front right facing edge, so under hard righthand cornering it prevents the fuel escaping in the same way. Under hard left cornering it does very little at all, but as the tank is naturally filled in that direction it's not needed as much.

It adds extra surge protection down to about 1/8th of a tank, which is why the Spec C comes with this as standard for homologation reasons, but in aplications where surge protection is absolutely paramount on low fuel levels i would use a properly designed external swirl pot and fuel pump system. It's too expensive for what it is, for the money you could spec up a good swirl pot and pump system.

 

John

How much is the STi item, if you dont mind me asking?

Nathan..

 

From memory it cost me about £450 after import taxes, bank charges etc.

 

Thanks but err No!

Cheers John

Nathan..

 

Margarine tub

 

 

Ouch,

here's me thinking it's about £100 or so for the device. Would be a lot cheaper and more rewarding do solve the problem yourself. I'm sure a talented and creative person could make something effective to fit in the bottom of the fuel tank around the fuel pickup point to keep a litre of fuel from swishing about at the bottom.

 

or just go round roundabouts the wrong way

 

Thanks John thats about what I thought but couldn't be sure.

cheers

bob

 

Ok, abit of an announcement, I have decided that I can't keep two cars (Impreza's) so one has to go and its got to be this one, having now got the STi5 back up to speed with its 2005 engine setup, six speed box and oem ecu its just got to be kept, so the Sti9 is to be sold.

So not too much more to be posted in this thread, I will probably start a new one on the '5 commencing with its first rolling road run (PE) to benchmark its new starting point.

Car is great and has been all the time I've had it but decisions have to be made. Need to make room for another step forward. The '5 engine is the spec that will reside in any model year if RCM are commissioned to do the work. Initial trials show it to be a step forward over previous version. Making the factory ecu work at this level has also been a big bonus.

bob

 

Wish i had the money Bob, your STi9 is a stunning car. Good luck with the sale, the '5 sounds interesting.

 

Thanks John, yes the '5 is very much that, next time you are my way give me a shout, be glad to see what you think so far.

bob

 

I'll definately do that Bob, see you soon.

 

That 5 must really be something special now Bob. Quite shocked to hear your selling the 9, as I thought that was the way to go. Glad to hear your keeping the 5 tho

 

 

Thoroughly enjoyed the thread. Sorry to hear that 'Turbo Time' isn't going to come off but look forward to seeing how the '5' develops. That looks a stunning car and I can see why you want to keep it!

 

So has the 9 gone then Bob?

You not bored enough to go get another one yet?

How's business too? Going well?

 

With Bobs kind permission, I thought it might be an idea to update this thread with updated upgrades.

As some of you may know, I was lucky enough to buy this ‘development’ car in March 2005.

Shortly after buying it we (the wife!) decided to move to a bigger house (Double garage and a 'games' room for me ), so initially modifications were restricted to the chassis, with Wheels, braking, roll bars, ALK and springs up rated. Power remained the same.



As I had an Aquamist Water Injection system fitted to my TypeR, I decided to fit this to the car, choosing as with the Type R to use the waterspray bottle.
With the Top mount pipework and Newage under bonnet bottle, this was not an easy install and I ended up making a bespoke alloy bracket to mount it low in the engine.

You can see from the pic below, how hard it was to find space for the pump



Bob came up with a novel idea of mapping the water injection to trigger by using the inputs from the water spray system: Inlet Temp/Boost and something else that I cannot remember (Bob when you read this please let me know so I can edit it ). This effectively did away with the need for the separate Aquamist System 1s boost switch ( and most of the wiring!).

Although we managed to lean out the fuelling, to cope with the rather large 0.5mm water jet, power was not really increased although the car did run much cooler inlets. In fact I did a track day at Brands in February 2006 and saw hardly any Knock link activity.

It was obvious to me that we were approaching the limits of the three remaining major components:

• Turbo
• Injectors
• Intercooler.

I was therefore lucky enough to come across a second hand and low miles APS DR725 front mount kit. A few clamps and a few small parts were missing but the fitting was completed in June 2006. The top half of the pipework was them removed whilst I waited for Bob to remap it.

As you can see from the pic below, I am glad Bob was foresighted enough to use the RCM cone on this car. It is almost designed with the APS pipework in mind.





It was during this wait that I started to become interested in the increased use of Methanol in water injection systems on Scoobynet (Bob’s own car included). As the major supplier in the country is near me, I was able to purchase 5ltrs of Methanol and the same of dematerialised water. All for around £10.

On Bobs advice I reduced my water Injection jet size to 0.4 as the 0.5 would have been too big. The nozzle was tapped approximately 30inches from the throttle body and I have to say that that last stretch of pipe is ALWAYS cool to the touch.



The remap was carried out in June of this year and I really wish I had bought bigger injectors as well.
Despite the fact that the water/methanol allowed more advance/less fuel duty (Ill let Bob comment on the technical bits ), the Pink STI fuel injectors are running at around 95% and are the current limiting factor.

Drivability has been increased with the APS and so have the options regarding cooling.

On a rolling road the following week with quite high ambient temps, the car produced a displayed power increase of 377Bhp and 376ibft torque. Although when the graph printed it showed at 376/376.



You might say that this is not a huge increase on the 369/368. But drivability has increased and spool has remained much the same. A fact commented on by PE.


I know I need 650cc injectors to unlock any more power from the standard turbo. This will be the next update to this thread which should not be too far away.

With regards to the Turbo itself. There are very few good Twin Scroll hybrids out there, and I need to think long and hard about what ‘characteristics’ I want.

 

Fantastic to hear an update on an already fantastic car. All too often when a car changes owners, you never hear about them again. Only just heard about Rob's old RA and it doesn't sound good.

Good on you for the update.

 

Glad all went well Hol. Will be keeping an eye on this thread for future updates

 

Fantastic that you are keeping this going, I have a contribution to make on the latest mod's and will post in more detail tomorrow.

BTW the "megga rom" is sorted !!

excellent stuff given its off the std rom code

cheers

bob

 

I've just read the whole thread. I think I know what to do know

F

 

Well i've now bought Nathans car off him Bob so will be calling on you for any future map's etc etc

Will putting a FMIC on make a big difference? After reading Hol's comments it seems the way to go! Also how much are bigger injectors and what size would be best?

cheers,

Gav..

 

Well done you couldn't have found a better one (after Hols of course lol)

650 injectors will be the size and yes the FMIC is very much the way to go on these, in fact nathan was tracking my old car faithfully so you could do a lot worse than keep it "on track" iyswim. Pricing vary's but just make sure you get what I call "genuine" ones and not cheaper converts. A poor set of injectors would screw it up completely.

Thw WI set up has a significant contribution to make especially if you are tracking it.

cheers

bob