JustinP10
MotoIQ Newb
Send PM
Posts:96
 |
| 05-03-2011 02:59 PM |
|
I have a dumb question I haven't seen mentioned online anywhere...
I have a lag between shifting, it feels like an electronic or mechanical cut in power for maybe 1/2 second or so. I was thinking it was ecu based, but it happens with the tcs and traction off as well. Happens between all the gears. I've tried shifting slow, I've tried shifting fast, and it still happens. Slow and smooth between gears helps smooth it out, but it then feels like i'm just driving around the issue. And I know when I go to the track for the first time in a few weeks, it'll bug the hell out of me.
For example, if i shift hard, it'll start to chirp the tires, cut power, then come back and accelerate strong through the gear. Almost like simulated lag, but with the size of this turbo and rpm, i doubt it's lag.
Is this something a simple tune will correct, or should I be heading to the dealer and taking advantage of having a car under warranty? |
|
|
|
|
Todd98SE
MotoIQ Newb
Send PM
Posts:24
|
| 05-03-2011 04:50 PM |
|
Justin, this is most likely your factory drive by wire throttle maps that are causing your lag. The factory DBW maps suck. Get a Cobb Accessport and you'll be able to tune the lag out and fix a bunch of other problems that exist in the factory maps. Let me know if you need any help or advice and start browsing mazdaspeedforums.com to gain some more knowledge. |
|
|
|
|
JustinP10
MotoIQ Newb
Send PM
Posts:96
|
| 05-03-2011 09:21 PM |
|
Cool. I actually already have an accessport and custom tune lined up.
I had an accessport and race tuner software on my 350Z, so I'm familiar with the setup and plan to use it again. However, I'm going to let someone with more knowledge and experience with direct injection tune it for me. He has access tuner pro and a ton of experience with mazdas and this motor in particular, so I know I'll get a good, reliable tune.
Thanks for the heads up on the forum. I've been browsing a bunch of different ones, but haven't really found anything decent yet. I'll dig deeper on that one. |
|
|
|
|
sr20boston
MotoIQ Newb
Send PM
Posts:16
|
| 05-04-2011 04:59 AM |
|
I have a touch of lag between shifts unless I slam it through gears which I don't do to limit the "abuse" factor. I have an Accessport but the off the shelf maps suck. I need a custom tune so still run the factory settings. I just figured it was turbo lag. |
|
|
|
|
Sootfoot
MotoIQ Admin
Send PM
Posts:418
San Diego, CA
|
| 05-04-2011 06:44 AM |
|
I thought the speed3 limited boost in the first 3 gears regardless of the traction control being on or off. Probably done to reduce torque steer for wimps! |
|
|
|
|
sr20boston
MotoIQ Newb
Send PM
Posts:16
|
|
JustinP10
MotoIQ Newb
Send PM
Posts:96
|
| 05-04-2011 09:53 AM |
|
If you press and hold the tcs button when starting the car, it'll disable to the torque limiter in the first couple gears, but I believe it still limits you to 70% throttle opening and the steering angle limiter is still active.
I think I may try the steering angle deal tonight... that shit bugs me. |
|
|
|
|
Sootfoot
MotoIQ Admin
Send PM
Posts:418
San Diego, CA
|
| 05-04-2011 11:17 AM |
|
When I drove the speed3 I was surprized at the lack of power because I expected something similar to my turbo b13 at 12psi on pump gas. It wasn't even close. The limiters are really doing their job. I didn't have enough road to test full throttle blasts on boost in 4th.
Getting rid of all the limiters would be something I would want to do but then again I'm not sure the car would be any faster. I've got to heavily modulate the throttle on the b13 in the first two gears on street tires. |
|
|
|
|
sr20boston
MotoIQ Newb
Send PM
Posts:16
|
| 05-04-2011 11:23 AM |
|
I need to try and find a thread I came across after I got my car where a couple HPDE guys did laps with the nannies on and off with negligible differences in laptimes. Tiny sampling, unknown driver skill, etc. are in play here but it was an interesting result. When I drove the speed3 I was surprized at the lack of power because I expected something similar to my turbo b13 at 12psi on pump gas. It wasn't even close. The limiters are really doing their job. I didn't have enough road to test full throttle blasts on boost in 4th. Speed3 has like 700lb on the B13. (~3200 vs ~2500) |
|
|
|
|
JustinP10
MotoIQ Newb
Send PM
Posts:96
|
| 05-04-2011 11:41 AM |
|
Posted By Aaron LaBeau on 05-04-2011 01:17 PM
When I drove the speed3 I was surprized at the lack of power because I expected something similar to my turbo b13 at 12psi on pump gas. It wasn't even close. The limiters are really doing their job. I didn't have enough road to test full throttle blasts on boost in 4th.
Getting rid of all the limiters would be something I would want to do but then again I'm not sure the car would be any faster. I've got to heavily modulate the throttle on the b13 in the first two gears on street tires.
Coming from the SR world, it was a bit weird for me too. This car is MUCH more docile in comparison. Going through the gears, it actually feels like 4th is faster than 3rd which is faster than 2nd, etc....
It's actually pretty interesting looking at all the ways they softened and detuned the car, to create a final product that appeals to the average automotive consumer. |
|
|
|
|
Sootfoot
MotoIQ Admin
Send PM
Posts:418
San Diego, CA
|
| 05-04-2011 02:12 PM |
|
Posted By sr20boston on 05-04-2011 01:23 PM
When I drove the speed3 I was surprized at the lack of power because I expected something similar to my turbo b13 at 12psi on pump gas. It wasn't even close. The limiters are really doing their job. I didn't have enough road to test full throttle blasts on boost in 4th. Speed3 has like 700lb on the B13. (~3200 vs ~2500)
That's a big boat anchor to haul around. I'm not sure what the speed 3's dyno to the wheels but my b13 is 280 at 12psi which is what I ran on crappy 91 octane. Having written all that I think the speeed3 would still be faster to 60mph simply because you really have to be on your game with the throttle and shifting with the crazy turbo kit SR20's.
|
|
|
|
|
Sootfoot
MotoIQ Admin
Send PM
Posts:418
San Diego, CA
|
| 05-04-2011 02:30 PM |
|
Posted By Justin McClanahan on 05-04-2011 01:41 PM
Posted By Aaron LaBeau on 05-04-2011 01:17 PM
When I drove the speed3 I was surprized at the lack of power because I expected something similar to my turbo b13 at 12psi on pump gas. It wasn't even close. The limiters are really doing their job. I didn't have enough road to test full throttle blasts on boost in 4th.
Getting rid of all the limiters would be something I would want to do but then again I'm not sure the car would be any faster. I've got to heavily modulate the throttle on the b13 in the first two gears on street tires.
Coming from the SR world, it was a bit weird for me too. This car is MUCH more docile in comparison. Going through the gears, it actually feels like 4th is faster than 3rd which is faster than 2nd, etc....
It's actually pretty interesting looking at all the ways they softened and detuned the car, to create a final product that appeals to the average automotive consumer.
That's a funny comparison with the gear changes. Docile as the speed3 may be I'm surprized and glad they made the car. It's way more aggressive, affordable and appealing than many of its competators.
|
|
|
|
|
JustinP10
MotoIQ Newb
Send PM
Posts:96
|
| 05-04-2011 04:05 PM |
|
Posted By Aaron LaBeau on 05-04-2011 04:12 PM
Posted By sr20boston on 05-04-2011 01:23 PM
When I drove the speed3 I was surprized at the lack of power because I expected something similar to my turbo b13 at 12psi on pump gas. It wasn't even close. The limiters are really doing their job. I didn't have enough road to test full throttle blasts on boost in 4th. Speed3 has like 700lb on the B13. (~3200 vs ~2500)
That's a big boat anchor to haul around. I'm not sure what the speed 3's dyno to the wheels but my b13 is 280 at 12psi which is what I ran on crappy 91 octane. Having written all that I think the speeed3 would still be faster to 60mph simply because you really have to be on your game with the throttle and shifting with the crazy turbo kit SR20's.
I've seen numbers all over the place, but I think the average is around 230-240whp and 240-250ft.lbs ?
And yeah, it's really not a docile car, the only time I'd consider it as such is when you're comparing it to something like a turbo se-r.  The mazda definitely has a character all its own. I'm really glad mazda took the risk with this car and brought it to market. |
|
|
|
|