BOE Torque 300 > more frequent stalling - LotusTalk - The Lotus Cars Community
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post #1 of 35 (permalink) Old 04-22-2017, 01:05 PM Thread Starter
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BOE Torque 300 > more frequent stalling

Been running the tune for more than a year now (12K Miles) and I have noticed that the stalling occurs more frequently do you know what could accentuate this ? O2 sensors ? the power is as good as the first day, it's just that it's a bit annoying and happens sometimes on dangerous places (roundabouts ...)
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post #2 of 35 (permalink) Old 04-22-2017, 04:26 PM
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I have the Torque 300 tune on a 2008 Exige S240.
I have about 1200 miles on it and hasn't stalled.
The idle is a bit erratic sometimes, fluctuating between
about 950-1400, but other than that I am very happy with
the tune. It idles marginally better than stock overall.
The stock tune stalled on almost every drive.

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post #3 of 35 (permalink) Old 04-22-2017, 05:02 PM
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I'm nearly 400 miles on the Torque 300 tune and haven't had a stalling issue. I echo sleepe above with a hunting idle at times. Check to make sure you don't have a vacuum leak after removing the stock airbox to make way for the BOE CAI. I had a time a year ago before the Torque 300 tune where my car was stalling on stops. Turned out the valve on the bottom of one of the catch cans was open. This was enough to cause stalling.
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post #4 of 35 (permalink) Old 04-22-2017, 05:45 PM
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I'm awaiting a torque300 tune and I hope I wont get those idle problems stalling or fluctuation.

My vision function tune since 2011 had a very smooth stable idle , the stalling problem was also 90% gone with it.

I'm expecting the best out of this Torque300 tune.

The next fastworks software is suppose to have a new feature to avoid the occasional stalling issue.

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post #5 of 35 (permalink) Old 04-22-2017, 06:36 PM
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I still get stalling occasionally when coming to a stop with the BOE 300 tune, I wonder if Phil has an updated version or something that would prevent or help it.
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post #6 of 35 (permalink) Old 04-23-2017, 12:05 AM
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My current Torque 300 tune has been flawless so far. The one before had idling issues. I think I've had 3 or 4 different tunes, one of them oddly had this problem.

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

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post #7 of 35 (permalink) Old 04-23-2017, 03:56 AM Thread Starter
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OK Will check the engine bay for something fishy, I'll try to clean MAF sensor also. It just this last month that it started to stall at least once per trip
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post #8 of 35 (permalink) Old 04-24-2017, 05:43 AM
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I have a rev400 tune doing the same thing. It is driving me crazy. I have changed sensors checked for rubbed wires...I am going in circles. Can't find find a vacuum leak


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post #9 of 35 (permalink) Old 04-24-2017, 06:32 AM
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Mine too, never found out the source, did a smoke check and no leaks AFAIK. Phil increased the idle throttle position a little, but it will still stall sometimes. Still makes power though. 260 WHP

2007 Exige S with almost every track mod...
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post #10 of 35 (permalink) Old 04-24-2017, 07:46 AM
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It can be a hard thing to diagnose as so many things can impact the stalling. I can force the car not to stall F1 style, but the idle would be high in that case... When 9/10 cars don't stall, the 1/10 is most likely the car and not the tune... It would be grand to adjust the PIDs to catch every variation of issue with a car's idle... It's probably doable, but there is a lot of idle tables and very time consuming to adjust every table to be happy with each other. Lotus simply made the table values for varying engine dynamics too narrow. Undoing that can be pretty tough. Obviously, the work we've done with idle has improved things significantly, but not 100% universal fix.

Had a problematic car in the other day and worked on some new PIDs that seemed to have remedied that car's issues. If the longer term results are there, I can more universally apply those PID values to tunes.

Lotus knows the earlier idle tables are inadequately conceived. In the future, I'll be updating our tunes to use the latest from Lotus as a base. It's a LOT of work, but in process. For 90% of cars, the new base won't be helpful, because they're perfectly great the way they are. On some of those stalling that seems impossible to solve, the new base -could- help... That said, there seems to be always be a hardware variable that's overlooked... finding that variable can be simple or a monumental challenge...

Cheers,

-Phil
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post #11 of 35 (permalink) Old 04-24-2017, 05:36 PM
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Quote:
Originally Posted by kfennell View Post
Mine too, never found out the source, did a smoke check and no leaks AFAIK. Phil increased the idle throttle position a little, but it will still stall sometimes. Still makes power though. 260 WHP
Same with mine, except it never stalls any longer but idle is set to 1200-1300rpm. I wish it were lower but...


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post #12 of 35 (permalink) Old 04-24-2017, 08:34 PM
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Quote:
Originally Posted by vstryker View Post
I still get stalling occasionally when coming to a stop with the BOE 300 tune, I wonder if Phil has an updated version or something that would prevent or help it.
Stall when coming to a stop? Have you checked your wheel speed/ABS sensors? Rust/dirt can cause a weak signal from the wheels speed/ABS sensors...

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post #13 of 35 (permalink) Old 04-25-2017, 07:52 AM
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Quote:
Originally Posted by kfennell View Post
Mine too, never found out the source, did a smoke check and no leaks AFAIK. Phil increased the idle throttle position a little, but it will still stall sometimes. Still makes power though. 260 WHP
What is your current setup to get 260WHP ?

07 Exige S300+,Solar Yellow,Touring Pack, Torque300 tune,RLS Intercooler,Pro Alloy IC tubes,Lotus Stage3 Exhaust,Intake BOE ITG cold airbox,RLS MKII 3.0 Pulley,SaikouMichi Oil catch can,NGK BKR7-EIX Plugs,EV14 525cc injectors,CarbonFiber side scoops+front lip+rear spoiler, Nitron SS Shocks, PC680 Battery,JVC KDNX5000,CompactSub Kenwood KSC-SW1,Tinted windows, Lotus Sport windshield+front plate decals,HID Kit 6000K,Parking Light,license Leds.
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post #14 of 35 (permalink) Old 04-25-2017, 08:08 AM
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Quote:
Originally Posted by kfennell View Post
Mine too, never found out the source, did a smoke check and no leaks AFAIK. Phil increased the idle throttle position a little, but it will still stall sometimes. Still makes power though. 260 WHP
Did you confirm this on a dyno?

I have no doubt my car is making the claimed 264-ish whp, but haven't
had it on a dyno to check.

BTW: The Torque 300 tune feels torquier at lower rpms with a cat rather than a straight pipe, but the
straight pipe screams to the redline with more ease. I guess additional back pressure isn't so bad.

2006 Elise ST (someone else has it now . . . )
2008 Exige S240 ST
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post #15 of 35 (permalink) Old 04-25-2017, 10:25 AM
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Quote:
Originally Posted by sleepe View Post
Did you confirm this on a dyno?

I have no doubt my car is making the claimed 264-ish whp, but haven't
had it on a dyno to check.

BTW: The Torque 300 tune feels torquier at lower rpms with a cat rather than a straight pipe, but the
straight pipe screams to the redline with more ease. I guess additional back pressure isn't so bad.
Yes I have, I am traveling and don't have the dyno sheet with me, but I tested it on a Dynojet just last week for Nasa TT 260 WHP 256 SAE corrected. Torque is 156 lbs everywhere. FYI in this configuration at 2218 lbs I am in TT3 and the car is very competitive I think. At cota I am right at the front of the pack. At other tracks I don't have enough track time, but in the easy sections I am keeping up with the top runners.

Setup is exactly the BOE power recipe but stock intercooler still just with more ducting, for sure I need a better intercooler as I am at almost 200 degrees on the track intake temp.

Walbro 255 Fuel Pump in suge tank
BOE CAI
BOE 550 EV-14 Injectors
BOE HO 3" Pulley
DMC 4:1 Long Tube Header
BOE ST Muffler
BOE Torque 300 Tune to make it all work

2007 Exige S with almost every track mod...
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post #16 of 35 (permalink) Old 04-25-2017, 10:39 AM
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Quote:
Originally Posted by kfennell View Post
Yes I have, I am traveling and don't have the dyno sheet with me, but I tested it on a Dynojet just last week for Nasa TT 260 WHP 256 SAE corrected. Torque is 156 lbs everywhere. FYI in this configuration at 2218 lbs I am in TT3 and the car is very competitive I think. At cota I am right at the front of the pack. At other tracks I don't have enough track time, but in the easy sections I am keeping up with the top runners.

Setup is exactly the BOE power recipe but stock intercooler still just with more ducting, for sure I need a better intercooler as I am at almost 200 degrees on the track intake temp.

Walbro 255 Fuel Pump in suge tank
BOE CAI
BOE 550 EV-14 Injectors
BOE HO 3" Pulley
DMC 4:1 Long Tube Header
BOE ST Muffler
BOE Torque 300 Tune to make it all work
You're spot on about TT3. It's right in the money there... Hit us up on the IC... It's another part we've been holding back off the website

Cheers,

Phil


Phil: NASA 2012 and 2014 TT1 Central Champion, 2005 GG Elige, Rev400, 485+whp REV X

2011 Pearl White Evora, BOE Skunk Works 6 SPD 435WHP || 2014 Black Evora Skunk Works IPS 390WHP|| 2011 White Evora Skunk Works IPS 390WHP || 2006 CO Elise, Rev400, Steet Car

____________________________________________

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BOE ClamHinge | BOE TVS SuperCharging, The Most Powerful Track-Worthy Forced Induction | EFI Engine Management | BOE The Essential Fuel Starve Solution| BOE Lotus Tow Package| BOE New-Tech Lotus Race Engines | The Right Oil Filter for Your Lotus | Custom Lotus ECU Tuning


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post #17 of 35 (permalink) Old 04-26-2017, 07:18 AM
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@kfennell , given that you have a FastWorks tune, do you "feel" a significant drop off in power when IATs hit the 190-200* range? Also, for track duty, what octane gas are you running?

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post #18 of 35 (permalink) Old 04-26-2017, 07:48 AM
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I am running 93 octane. I believe that I can feel it, but more importantly I can only hit 136 on the straight at cota if it is below around 70 degrees, same at TWS. I can lose as much as 6 MPH at both.

2007 Exige S with almost every track mod...
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post #19 of 35 (permalink) Old 04-26-2017, 10:47 AM
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I use to have the stalling problem before and after upgrading to the 300 tune. I replaced the COPs with multispark versions and the stalling issue disappeared.

Just food for thought,
Eldon
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post #20 of 35 (permalink) Old 04-26-2017, 04:48 PM
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OMG! You have the DMC header too ! $$$$$$$$$$$

Only the intercooler is missing and you have the complete BOE power receipe.

It look like you should be more toward or closer to 290WHP than 260WHP .

The dyno you used wasnt a mustang dyno either.

Your number seem a bit low considering an intercooler wont give you those 30 extra poney.

Quote:
Originally Posted by kfennell View Post
Yes I have, I am traveling and don't have the dyno sheet with me, but I tested it on a Dynojet just last week for Nasa TT 260 WHP 256 SAE corrected. Torque is 156 lbs everywhere. FYI in this configuration at 2218 lbs I am in TT3 and the car is very competitive I think. At cota I am right at the front of the pack. At other tracks I don't have enough track time, but in the easy sections I am keeping up with the top runners.

Setup is exactly the BOE power recipe but stock intercooler still just with more ducting, for sure I need a better intercooler as I am at almost 200 degrees on the track intake temp.

Walbro 255 Fuel Pump in suge tank
BOE CAI
BOE 550 EV-14 Injectors
BOE HO 3" Pulley
DMC 4:1 Long Tube Header
BOE ST Muffler
BOE Torque 300 Tune to make it all work

07 Exige S300+,Solar Yellow,Touring Pack, Torque300 tune,RLS Intercooler,Pro Alloy IC tubes,Lotus Stage3 Exhaust,Intake BOE ITG cold airbox,RLS MKII 3.0 Pulley,SaikouMichi Oil catch can,NGK BKR7-EIX Plugs,EV14 525cc injectors,CarbonFiber side scoops+front lip+rear spoiler, Nitron SS Shocks, PC680 Battery,JVC KDNX5000,CompactSub Kenwood KSC-SW1,Tinted windows, Lotus Sport windshield+front plate decals,HID Kit 6000K,Parking Light,license Leds.
2013 Scion FR-S Firestorm
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