Turbo BS Thread

My 550cc are some oem like denso injectors. No sheet on them. Rumor is they are blue Mazda RX8 injectors. Maybe I'll just hold off on getting some injector dynamic ones and play with the scaling on these. They run great on my current piggyback. Haven't played with the haltech UI that much. Still getting used to the haltech and finding my way around. Building a base map for my setup in the next few week. I'll reach out if I'm having some issues.

 

Found this on an RX8 forum. Maybe I might be lucky.

 

These?

https://www.witchhunter.com/flowdatapix/d1955004460.jpg

 

It's actually Denso 23250-74200.
Last year I tried getting a table from Denso. Denso doesn't make injectors anymore. So yeah that table above might not work for me since I have a toyota injector.

 

As long as you know the flow rate you're going to have most control of your table even without the proper dead times put in. Dead times will mostly affect the lower end of your table and how stable it is at maintaining AFR. But you really shouldn't notice any issues at idle and you shouldn't notice any issues at all at wide open throttle. You just really need the proper dead times for getting stable control in the mid and low range of pulse width. So you could probably find some other Toyota injectors and start with those dead times as a baseline. Might I suggest looking at the dead times of the built-in maps that come with the haltech units. There might be something in the Mazda or Toyota sections that can help you

 

MadTaco good to see you still around fren

 

Cool thanks. Sounds like I'm just over analyzing my injectors. I do like having a smooth idle and bottom end. Maybe eventually I'll do some 1000cc injectors because I'll max these 550cc out pretty soon.

 

Welcome back. It's been awhile.

 

You can up the fuel pressure to squeeze a little more from them easily as long as the pump can handle the increase in pressure.

 

I'm pretty tapped out there too, lol. Already boost referenced to my FPR. It's going to be hardware changes when the time comes. Probably best for me to be fuel limited so I don't throw a rod.

 

For the previously posted cheap OEM supercharger….

https://youtu.be/NtnEaiSzGOo

 

Perfect for those who prioritize hearing the SC Whine!!

 

They didn't have a bypass valve haha

 

Not unwise.

The Injector Dynamics are very easy to tune, once you have their data entered. You just have to increase fueling at idle. Compared to a Toyota injector. Despite being much larger.

 

Substantially easier to tune when someone else drives... Boobs don't hurt either, been driving for years on a "kinda ok" tune and now I haven't seen anywhere that my left get above +-8 in just one quick drive to town.

 

Wised up! Smarty pants.

 

Ok so I have finally had a little time to work on my own stuff. I got my LS torn down and replaced and gapped the rings, shortblock assembled now.
Ordering BT racing MLS head gaskets for the top end to use with my head studs, I just used a standard MLS last time with the NA setup.
Damn I have been lagging soo hard..

 

So you have most of the turbo equipment ready to throw on too?

 

Yeah I already built all the hotside and coldside pipes, but no exhaust yet. I also have a Holley Terminator to run it but upgraded it so I can run E85 or flex setup using 2 maps that will be corrected based on ethanol percentage. I also have a dial a boost setup so I can just twist a dial to up the boost level. Should be a pretty sweet setup!

I have been working on Toyotas (customers) every day so I have not doing much on my own truck, not to mention fuel prices, fuck me!!

 

Well you're not far now. One thing that I really like about the Holley Terminator, is its self tuning feature for fueling. Gets you in the ballpark easily.