I bought a JWT chip for my ecu and it is very nice!!! I had conditioned myself to shift at 6800 rpm, now I am retraining myself to shift at 7300.
The difference in performance is amazing! It pulls strongly in any gear. I recommend getting the chip. I shift manually, so I might not buy the tcu.
The best part was the price and the turn around time. I bought the chip from aaacomp. I sent him my chip on Monday and got it back on Wednesday!!
Also, he has a ton of stuff for our cars! Check out his website and give him a call!
JWT ecu's
Edit: I guess I was wrong.-
maxnix
- Posts: 22627
- Joined: Mon Jul 22, 2002 8:11 pm
- Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45
My point exactly. Unless the TCU is reprogrammed or, more accurately, remapped, then it doesn't know to shift at 7300 rpm as opposed to 6400 rpm.911/Q45 wrote:The factory TCU will shift before redline even with the JWT ECU I believe.
Also, some of JWT TCU for the older Q45 were tri-mode.__________________Brian1995 Q45 & Q45t
Discover the power of the button!
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Q45tech
- Moderator
- Posts: 14296
- Joined: Tue Apr 30, 2002 3:19 am
- Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl
There must be a rpm back off from the redline [fuel cut off point] to allow the transmission to shift. The TCU says shift but the solenoid may be slow and the pressure low, and the valve body worn and sluggish.
The TCU just drives [provides on/off voltages for] the solenoids inside transmission.The transmission lags behind the engine [rpm] due to torque convertor slippage. The Consult can be set up to log, engine rpm, tc output rpm, and speed sensor/turbine sensor.......so you can log/graph to the 0.025 second increment. You can monitor the period when the ignition advance is decreased [under control of tcu] to determine the real shift time [effective time when acceleration ceases]
The TCU just drives [provides on/off voltages for] the solenoids inside transmission.The transmission lags behind the engine [rpm] due to torque convertor slippage. The Consult can be set up to log, engine rpm, tc output rpm, and speed sensor/turbine sensor.......so you can log/graph to the 0.025 second increment. You can monitor the period when the ignition advance is decreased [under control of tcu] to determine the real shift time [effective time when acceleration ceases]
There is a aftermarket switch on the console whose function is a mystery to me.
3 aftermarket switches total:
One that is clearly NOS on/off ( lit blue when in on postion)One that is supposedly to switch to the seperate race gas fuel cell3 rd one, I dunno
Can be toggled forward (will return to starting positon on relese) and can be toggled backward (also returns to middle positon on release)
Fred..
3 aftermarket switches total:
One that is clearly NOS on/off ( lit blue when in on postion)One that is supposedly to switch to the seperate race gas fuel cell3 rd one, I dunno
Can be toggled forward (will return to starting positon on relese) and can be toggled backward (also returns to middle positon on release)Fred..
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SOCAL91Q45a
- Posts: 403
- Joined: Sat Aug 16, 2003 2:28 pm
- Contact:
http://www.jimwolftechnology.com/
http://www.jimwolftechnology.com/q45index.htm
Not a ROBUST site, but enough to get you an overview and a phone number
http://www.jimwolftechnology.com/q45index.htm
Not a ROBUST site, but enough to get you an overview and a phone number
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SOCAL91Q45a
- Posts: 403
- Joined: Sat Aug 16, 2003 2:28 pm
- Contact:
Qship,
I saw you have some head work? and CAMs going on on your 1991 Q45a. I just got 91 Q45a - and its time to get ACTIVE! LOL ....
Im interested in what other folks are doing to their DOHC heads - if anything, and who's the place to do it.
Drop me a line here , or perhaps another thread - so as to not hijack this good one!
[email protected]
I saw you have some head work? and CAMs going on on your 1991 Q45a. I just got 91 Q45a - and its time to get ACTIVE! LOL ....
Im interested in what other folks are doing to their DOHC heads - if anything, and who's the place to do it.
Drop me a line here , or perhaps another thread - so as to not hijack this good one!
[email protected]
No head work or CAMS just yet. My next project is to reseal the valve covers and swap out the active p/s pump and put on a standard p/s pump.SOCAL91Q45a wrote:Qship,
I saw you have some head work? and CAMs going on on your 1991 Q45a. I just got 91 Q45a - and its time to get ACTIVE! LOL ....
Im interested in what other folks are doing to their DOHC heads - if anything, and who's the place to do it.
Drop me a line here , or perhaps another thread - so as to not hijack this good one!
[email protected]
With just the chip from aaacomp and manual shifting, my car redlines at 7300.maxnix wrote:My point exactly. Unless the TCU is reprogrammed or, more accurately, remapped, then it doesn't know to shift at 7300 rpm as opposed to 6400 rpm.
Also, some of JWT TCU for the older Q45 were tri-mode.
I was in DC this past weekend and my friend's Boxster learned the hard way...you better respect the Q!
I just dont know why i was so surprised when I outran my buddies 2000 Mustang GT. It was a 5 spd w/260 hp at 3600lbs. Doing the math, my 95 "slow" Q needs to be at 292hp for the same power to weight ratio. Plus I dont have stick shift and am against neutral drops in anything but my old Caddy. Took'em off the line and everything after. I think the Q hp is closer to 290 to 300 hp. My 93Q was listed at 3950lbs, but 95 at 4045lb. I think due to thicker glass, xtra amenities, etc.
AZhitman wrote:They do. But recall my experience with JWT (there was a whole thread on it).
I don't think Qship has an actual Jim Wolf chip - aaacomp does some remapping of his own (I could be wrong).
aaa said they have no upgrade ECU for '95Q. They replied JWT...$700 and 4 month wait! No need for TCU '93 and newer. And no need to buy a '96Q at all.