R33 Gtst Oem Injectors / Data? -> Bosch?

[Torques]

Hello there,

I was just wondering if anybody has data on the stock injectors for the R33?

I'd be interested in spray angle, spray pattern (cone / V) and deviation of the spray.

As described here for the Bosch:

http://www.boschdealer.com/specsheets/0280158117.pdf

I'm remotely thinking about Bosch injectors (0280158117), but am unsure whether they are a good match.

http://www.bmotorsports.com/shop/product_info.php/cPath/144_146/products_id/1661

Any recommendations?

Edited May 26, 2011 by Torques

[RBnub]

Not sure of the specs for the r33 injectors bit getting yourself a set of GTR injectors is a popular choice. I run gtr injectors and don't have a problem running up to 20 psi I'n my r32

[wolverine]

R33 have sidefeed injectors not topfeed.

Nismo injectors are a good way to go.

[89CAL]

R33 have sidefeed injectors not topfeed.

Nismo injectors are a good way to go.

+1 for the NISMO injectors

Supposed to be the best for spray pattern and haven't really heard of any issues with them. I know mine are good

[rob82]

If you can get a top feed rail with the injector adadtors those injectors will work much better than the nismo's.

[Torques]

Hello there,

Thanks for the replies ..

Yes, I would have a fuel rail with these injectors.

[wolverine]

If you can get a top feed rail with the injector adadtors those injectors will work much better than the nismo's.

Rob what is the difference in spray patterns?

[Torques]

That was my inital question, I wanted to find out whether the OEM injectors spray straight, angled or ...

I never removed the OEM injectors so I have no idea how far away the injctors are from the valves.

And I could imagine that the Bosch injectors are of a more modern design, but this is pure speculation.

Bosch states they're calibrated to max. 3% divertion .. is this good or bad?

I think I will bite the bullet and go for Bosch and the fuel rail

Cheers from London ..

Rob what is the difference in spray patterns?

Edited May 27, 2011 by Torques

[paulr33]

nothing wrong with keep it simple stupid

ie nismo drop injectors

why reinvent the wheel without a requirement?

ie channge rail and adaptors and different spec of injectors

[89CAL]

Nismo spray in a cone shape pretty sure. Can't remember the proper name but it's the same as standard spray pattern.

Most aftermarket ones I don't think do this sort of spray pattern, do straight spray I think. Happy to be corrected but

[Torques]

True, if it ain't broken why fix it?

Hoever the Bosch solution would be 25%-30% cheaper (including fuel rail, and Sard pressure regulator) and could be used up to 8 bar.

The Nismo's are overprised but the Bosch are definately quality as well.

So it's not like buying some Chinese copy instead of a Japanese quality part.

Also there is much fun in trying out new components (if they work that is)

nothing wrong with keep it simple stupid

ie nismo drop injectors

why reinvent the wheel without a requirement?

ie channge rail and adaptors and different spec of injectors

[paulr33]

check the injector specs also to ensure you can tune for them properly

from memory the info on the nismo's is readily available

[JonnoHR31]

Nismo spray in a cone shape pretty sure. Can't remember the proper name but it's the same as standard spray pattern.

yer they do, conical spray pattern is the name

the deatschwerks i have on the way are conical aswell but only single hole instead of 4 like the stockers and nismos, will see how they go soon.

[KiwiRS4T]

I had Deatschwerks 550s on my RB25DET making 245awkw will be using them on my RB30 as well.

[Torques]

A good point, I was thinking about the data myself.

But since it's a Bosch injector data should be available, at least from the manufacturer.

When leaving the beaten track you're on your own

check the injector specs also to ensure you can tune for them properly

from memory the info on the nismo's is readily available