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I used 6x HKS 1000cc on my last setup and they were running at 90% with 840hk/952Nm at the wheels. this was measured on a Dynopack, I have 2 big in tank pumps feeding 2 Bosh motorsport pumps all going in 2 separate 8AN lines from tank to engine, fuel pressure was 3.0bar.

I think I have read about some EVO`s that are running 4x 1000cc and are claiming 900hk++.. But that includes 275hk drive train loss hehehe


(sorry about dobbel post but I was to slow editing first post)
 

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kingsley said:
Just because F1 injectors run 10 bar doesn't mean that higher fuel pressures make it harder for injectors to open quickly. F1 injectors are clearly designed to work with higher fuel pressures and as such cope well with it but I doubt they'd do so well at 50 bar.

As I said in my earlier post, I don't know where the limits are, and I suspect that it will vary from one injector to the next (and possibly depends on the current supplying ability of the driving circuits too, though I don't know how much of a limitation this is in reality). However, there will be limits.

My comment was intended more as food for thought rather than a definitive "this won't run well at 7 bar" statement.

Most injectors aren't designed to run at F1 fuel pressures and as such probably won't have the ability to ... or at least not particularly well.
I wasn't making the point of high fuel pressure making the injector opening & closing quicker, it was more with reference to the 18,000+ RPM & its ability to open & close quickly.

I should imagine its more down to the quality of the injector as to how much fuel it can flow at high pressure. But then costs can't really be compared. a £100 1000cc injector is never going to be the best in the world compared to what is available at the pinnacle of motorsport development.

As one tuner said to me, it might be 1000cc, but compare say a Power Enterprise injector to a proper Bosch injector in terms of spray pattern etc & you see where the money goes!

Again, people assume "bigger is better". There are people on the MLR who harp on about how if you want to make over 500bhp on a 4G63 you must have 1000cc injectors? Makes no sense at all.
 

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Keef

keith said:
Hi hipogtr

I am not naming names as I will be strung up again for it.;)

Keith:smokin:
So basically your whole point for starting this thread....

There are somethings that are better off not said, why bother mentioning it in the first place. You mention it like everyone quotes over 1000bhp, show us your basis for the comment Keith.

Looks more like another chance to try to big-up your engine/spec by stating you have over 1000bhp to me, save it for the track...and get Rod to buy an banner advert.

If I were you, I would be more worried about Ron K running 9.4 full weight R32 and you running 9.3 at 1100 kilos or whatever it's supposed to be.... :D

After all the plastic this, and cut out that, imagine what Ron K would do if he did the same...theres food for thought eh.......

hahaha,love you.... see you in the summer :D

Andy
 

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Andy Barnes said:
If I were you, I would be more worried about Ron K running 9.4 full weight R32 and you running 9.3 at 1100 kilos or whatever it's supposed to be.... :D

After all the plastic this, and cut out that, imagine what Ron K would do if he did the same...theres food for thought eh.......

hahaha,love you.... see you in the summer :D

Andy
Ron K OSG RB30/T88 and a bit of NOS full weight = 9.4
Keith Trust 2.7/3037s and no gas 1100kg weight = 9.3
Keith OSG RB30/BIIIG F..k off turbo and no gas = no worries imo
 

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Totally agree Mark, ive seen some shocking things on the ASNU machine.

Unfortunately the machine isnt cheap for such a specialist area, luckily a friend of mine supplies injectors and purchased one :D.

I dont understand how it works tbh (flow rates/fuel press), but i have been informed that X increase in fuel pressure does not = a relative increase in flow. I have also witnessed a number of flow tests which repeatedly replicated non linear results although linear fuel pres increase.
Some injectors i have seen for example, dont really flow much over their rated flow output... no matter what the fuel pressure.

It was also nice to see the spray pattern, at 3 bar the fuel atomisation was not great. 4bar and the spray pattern was perfect conical spray.

Dynapack and Asnu machine!!! Superb! Got any jobs Mark? :D

Rob
 

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Discussion Starter #69
Andy Barnes said:
So basically your whole point for starting this thread....

There are somethings that are better off not said, why bother mentioning it in the first place. You mention it like everyone quotes over 1000bhp, show us your basis for the comment Keith.

Looks more like another chance to try to big-up your engine/spec by stating you have over 1000bhp to me, save it for the track...and get Rod to buy an banner advert.

If I were you, I would be more worried about Ron K running 9.4 full weight R32 and you running 9.3 at 1100 kilos or whatever it's supposed to be.... :D

After all the plastic this, and cut out that, imagine what Ron K would do if he did the same...theres food for thought eh.......

hahaha,love you.... see you in the summer :D

Andy
The reason for this post was to show that if you try to run over 1000 bhp
with a set of 1000cc injectors you wont have a engine very long.
If you look hard enough you will find some cars have been quoted to have
a good bit over the magic 1000 bhp figure:eek:

Yes we will have over 1000 bhp not bull$hite numbers either;)

I seen that on a post you said that you were running your engine with
your 1000cc injectors flat-out with a pair of 2835 turbos did you have
1000 bhp Not a chance but you would like everyone to think so:p:D

If someone goes faster than me so what,I will just try and better it again
like what I did with your record:D :D :D :D :D

If anyone feels the need to use Nos to better my record then go for it.
It only makes us look better that we can do it on race fuel;)


Rod Bell does not need a banner word of mouth is the best
advertising you can get.

Keith
 

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Keith,

I have every respect for what you and your car have acheived, but please don't judge everyone else by your own experiences. 1000hp is most certainly possible with 6 1000cc injectors. You must have realised that what you can get away with on the strip is totally different to what you can get away with for sustained periods of time on WOT, but this thread isn't about 1000hp indefinitey, just 1000hp.

There is more than one way to skin a cat.

Paul
 

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keith said:
Why do some tuners and owners quote big power figures from there engine's when running 1000cc injectors,when they cant
flow enough fuel to back it up.

Not naming anyone but there are a few :D :D :D :D :D

Keith
Because its fully possible keith.

I dont know excatly what BSFC the RB has, but it should be between 0.5 and 0.6.

Then for 960hp and a duty cycle of 80% you need 6 x 1000cc injectors, this calculation is always on the safe side.

Theory and real life doesn't always match up, but how do you know you didn't have more than 1000hp since it has never been on a dyno from what I know?

If you maxed out the 1000ccs you maybe had more than 1000hp?

/kami
 

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If you dyno on a Rolling Road and add 25% drivetrain loss i think you can get over 1000Fwhp ;) hehe.. but when it comes down to it you can easly see what kind of hp they have on the Trap speed on the drag stripp.
 

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keith said:
The reason for this post was to show that if you try to run over 1000 bhp
with a set of 1000cc injectors you wont have a engine very long.
If you look hard enough you will find some cars have been quoted to have
a good bit over the magic 1000 bhp figure:eek:

Yes we will have over 1000 bhp not bull$hite numbers either;)

I seen that on a post you said that you were running your engine with
your 1000cc injectors flat-out with a pair of 2835 turbos did you have
1000 bhp Not a chance but you would like everyone to think so:p:D

If someone goes faster than me so what,I will just try and better it again
like what I did with your record:D :D :D :D :D

If anyone feels the need to use Nos to better my record then go for it.
It only makes us look better that we can do it on race fuel;)


Rod Bell does not need a banner word of mouth is the best
advertising you can get.

Keith
Keith,,, mate i have all respect for what ( RB MOTOR SPORT ) and you have done with your car, the times you set and the way your os giken r32 goes......... but mate, you flexing your ego is getting boring buddy..........you know very well were these post you put up, are going to end up.....so keep it real........... have fun....... play hard or go home............ oh and drive it like you stole it;)
 

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Discussion Starter #74
toddrb30gtr said:
Keith,,, mate i have all respect for what ( RB MOTOR SPORT ) and you have done with your car, the times you set and the way your os giken r32 goes......... but mate, you flexing your ego is getting boring buddy..........you know very well were these post you put up, are going to end up.....so keep it real........... have fun....... play hard or go home............ oh and drive it like you stole it;)
Hi toddrb30gtr

Don't take things so serious the post above was supposed to be a bit
of banter with Andy.

Keith
 

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keith said:
Hi toddrb30gtr

Don't take things so serious the post above was supposed to be a bit
of banter with Andy.

Keith
dont take me serious mate.....i dont:D keep it on the hard flat stuff buddy.......... :smokin:
 

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Discussion Starter #78
DRAGON said:
A 42 only just fits. How are you getting a 47 in there, new mainifold? cutting the turret out? relocating the engine?:)
Turbo Dynamics have it all in hand,I don't even know what size
the turbo is yet apart from it will manage 1250 bhp.
Trust make a high flow exhaust manifold for the OS engine.

Keith
 

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I also think the GT-47 88mm might be a bit to big to fit in a skyline, here are mine when we was test fitting it when the car was under construction.





This beast will support up to 1800bhp
 

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We were tried to get Turbo Technics to sort us out a turbo. They took ages and eventually came up with completly undersized hairdryer. Say GT47 to any turbo places in the UK, and they wont have a clue.
 
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