What is the largest injector that can be reliabily used with Hondata? I have heard that 800cc is the limit.

When I go to http://www.rceng.com it says to support 300CHP @ 43.5psi I need 624cc injectors. This seems a little big to me. Should I run higher FP? What do most people run for fuel pressure?

 

i am running 900cc with no problems..
i still get 30mpg on the highway with those injectors, aeromotive 500l.p.h. fuel pump going through -8 braided line (lots of fuel getting moved)

 

Nice!

 

1000cc injectors are possible to idle decently. You will have to have your idle at 1000rpm though. I plan on going between 900-1000cc for my newest engine, they should support about 500whp before maxing out.

 

I'm running 980's and the car runs perfect. the idle has to be set at about 1000-1100 but it doesnt bother me.

 

I might add that it is difficult to idle very well with any system on an injector that is over 1000cc. On the Progress Civic Salt Flats car, we idled 920's with good result.

 

Did you go with larger fuel lines or keep stock for your street civic? I am just wondering.

 

No i went with steel braided lines.

 

Thanks, I am trying to get a sense of who is running stock and braided lines for over 500whp.

 

jsut a tuning question when using larger injectors on hondata..

do you guys adjust the injetor multipler when using larger injectors ? and or also crank fuel adjustments... or do you leave them on the stock settings and addjust the fuel tabels to suit the injectors ?

Ie is there any sideeffect by leaving these settnigs alone "? and tuning just via the maps.. ?

Regards James

 

I'd like to get a feel on that one as well..
I'll be running 65lb with AEM FPR and fuel rail
Should I consider upgrading the lines if I'm only looking for about 300-350 whp?

 

You should have zero problems with the stock lines. They can easily support 300-350whp. Once over 500whp its sketchy, but people have done it. Hell 300-350whp you can run stock internals on your engine!

 

ok, good...Thanks for the info. I am doing the build though, I just wouldn't be able to enjoy my ride always worrying about frying ringlands.

 

i am running 1100cc in my civic and my friends got 960cc in his integra both have had no problems at all


[Modified by LsVTeCTuRBo17, 12:14 AM 2/5/2003]

 

Just finished a 395hp Civic today, stock lines, and 680cc injectors, so you should be more than OK

 

Thanks for the response, man..............

 

Last year I was still running stock lines with 720's. Lean conditions due to fuel shortages were apparent at 22-24psi above 6500rpm (above 460whp). Idle is very good with Hondata. Stock lines & 720's are now being replaced...finally.

720's with stock lines made it to 500whp...but barely.

 

1200 cc RC injectors (but was running methanol so really it is like a 600cc injector on petrol) on an all motor engine. Fuel economy was about 1 mpg and methanol eats away everything it touches.

 

"Do we win the prize for the largest injectors?" funny you guys say that. do i win anything for making the most whp on a hondata system?? All i was offered is an upgrade to an s200 and i have to turn in my 4bd. what would you guys do with my old one anyway?? my newest car i will guarantee 600+ whp on a daily driven civic. whether it be on hondata or speedpro thats up to you guys. I'm not sure if this is matt but ask him about the car if it isnt. thanks!!

 

There's a few people making around 600 hp with Hondata. Believe it or not, one of the highest outputs is a F23 engine. You'd better get sponsorship from an axle supplier too.

 

I wasnt looking for a pat on the back or a prize just because i made 565 whp. i'm sure a ton of other people could do it but anyone that is looking to make 500-650 whp went with a true standalone. I just thought that showing people that a car can run consistently at over 600whp on hondata would kind of open up a new market for people that thought the system was limited to 350-450 whp. when i post up over 550whp most people had no idea you could control that much Hp with hondata. anyway, I'm getting some DSS axles thanks to some help from paul vang and i'll be running F.A.S.T on my new setup. I figured why beat my head in the wall trying to make as much hp as possible with a 3bar and 4 1000 cc injectors. now i have the option of 4 or 8 1600 cc injectors and a 5 bar. Hondata is still an excellent system and I always recommend it to customers looking to spend less than 1500.00.


[Modified by MotorMatrix.com, 2:24 AM 2/13/2003]