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There were many reasons for the change of the site software, the biggest was security. The age of the old software also meant no server updates for certain programs. There are many benefits to the new software, one of the biggest is the mobile functionality. Ill fix up some stuff in the coming days, we'll also try to get some of the old addons back or the data imported back into the site like the garage. To create a thread or to reply with a post is basically the same as it was in the prior software. The default style of the site is light colored, but i temporarily added a darker colored style, to change you can find a link at the bottom of the site.
O2 modifier
- Thread starter altonk
- Start date
ataDude
Mod Maniac
Two Brothers only puts their name on it and apparently has exclusive rights to it for the Spyder.
Dobeck Performance developed and manufactures the JB.
http://dobeckperformance.com/
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Firefly
Active member
Dobeck was a co-founder of what is now Power-commander/Dynojet.
I believe while Dobeck made the original JB, the pro is made by Dynojet/PC.
HMF and many other companies re-label these units too.....
mtdoragary
New member
So what you're saying is that the hesitation at about 55-60 when I'm rolling on the throttle is NORMAL? And the o2 mod will cure that?
It shouldn't be normal but i suspect it's the transient between closed loop and open loop operation. If you drive like I do if I'm accelerating through it it's because I made a mistake or I'm puttering through town. That's pretty low on the torque curve for this engine even detuned like it is. Brp didn't anticipate many people being in steady state down there for long.
Honda had the same problem with the s2000 when they introduced it. It was a high revving NA four with two cam profiles. People in the us complained it didn't have any torque even though it was the highest hp/liter normally aspirated engine in a production car on earth at the time. The power peak was around 8000 and everyone but me apparently was afraid to operate it up there.
Racing and performance cars are designed to run at a constant high rpm. Think of the throttle as a switch and the gear box as your speed control. Stay +- 1k from the torque peak.
The engine can take it
It campaigned with success in motoGP
Honda had the same problem with the s2000 when they introduced it. It was a high revving NA four with two cam profiles. People in the us complained it didn't have any torque even though it was the highest hp/liter normally aspirated engine in a production car on earth at the time. The power peak was around 8000 and everyone but me apparently was afraid to operate it up there.
Racing and performance cars are designed to run at a constant high rpm. Think of the throttle as a switch and the gear box as your speed control. Stay +- 1k from the torque peak.
The engine can take it
It campaigned with success in motoGP
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mtdoragary
New member
But can the REAR TIRE take it?
mtdoragary
New member
OK; I'm guessing the previous owner did the o2 modifier, because there's a brass plug where the o2 sensor should be! BUT, I have bad hesitation when I roll the throttle on easily at cruise speed... would a wideband o2 sensor help?
mtdoragary
New member
The BEST setup ever was the now-defunct Excelsior Henderson EFI. It was programmable via your laptop computer, or even your iPhone. You could map it any way you want. A remap got rid of the hesitation on my EH. Programming, custom cams, and a homemade 2-into-1 made it a 'Busa beater in dyno drags!:2thumbs:
As expected, o2 sensor controller solved the problem with popping at decel and better throttle response.
mtdoragary
New member
Will the sensor controller stand alone without a juice box!
It can be used by itself. I did loose that explosive acceleration at full throttle spyder had with full power commander set up but it's not bad. I do have it 13.8 afr so if I go 13.6 I am sure I'll get little better performance. At lower rpm range, I really did not loose much.
