Strange up/down boost problem

[-=Rob=-]

Got a bit of a strange one, my Cupra is boosting a bit oddly on part throttle. If I accelerate using part throttle, the boost goes up to 1.5bar, then back to 0.5 and up/down/up/down then settles for part throuttle driving. It's annoying as the car surges and slows as this happens. On WOT the car bost fine, spikes just over 1.5bar and then drops up the rev range.

Have checked VAGCOM and there are no faults logged, have logged airflow as I thought this may be an issue, but the figures seem ok, maxing at 156gms. Thinking it could be MAF related, as I had it off the car at the weekend and it was dirty (been on for 3 years or so). Other idea is N75 maybe? Vac lines are all checked and have recently been replaced with silicone hose, so can't think what else it could be or what to check, any ideas guys?

Cheers.

 

[Luke_buk]

sometimes your MAF sensor will not show up any faults but can still be causing a problem.

if you unplug your maf and run your car then it could be that.

try it and see if it helps. your tc light will come on though. but will go off when you re plug your maf in.

 

[JB!]

mine does this too!!! around 3k then between 4-4.5?!

 

[s1l3nc3r]

Sounds n75 related...

 

[JB!]

Sounds n75 related...

pulls 16psi upto 4k in 5th, then drops back to 5psi about 4200, then back up to 16 at 4500

 

[-pseudonymous-]

Got a bit of a strange one, my Cupra is boosting a bit oddly on part throttle. If I accelerate using part throttle, the boost goes up to 1.5bar, then back to 0.5 and up/down/up/down then settles for part throuttle driving. It's annoying as the car surges and slows as this happens. On WOT the car bost fine, spikes just over 1.5bar and then drops up the rev range.

Have checked VAGCOM and there are no faults logged, have logged airflow as I thought this may be an issue, but the figures seem ok, maxing at 156gms. Thinking it could be MAF related, as I had it off the car at the weekend and it was dirty (been on for 3 years or so). Other idea is N75 maybe? Vac lines are all checked and have recently been replaced with silicone hose, so can't think what else it could be or what to check, any ideas guys?

Cheers.

Hi Rob, hows things?

Its more than likely your N75 valve playing up. Try logging your wastegate duty on block 118. Also check all your vac hoses are plumbed in correctly as you have recently replaced them.

 

[-=Rob=-]

Hi Rob, hows things?

Its more than likely your N75 valve playing up. Try logging your wastegate duty on block 118. Also check all your vac hoses are plumbed in correctly as you have recently replaced them.

Hi Ollie, I’m good thanks mate hope you are too? Thanks for the advice, I’ll have a go at logging block 118 to see what that says, I’ve a feeling it could be N75 related you know. Mine has the C variant N75, I don't think you can’t get these anymore, am I right in thinking the F is the same one with a newer part number? I think the Vac hoses must be plumbed in right as this has only just started (not straight after plumbing them in). I also did them one by one so I knew they went back in the same places. I’ll let you know how I get on.

On another note, I was going to drop you a PM about Lemmiwinks, I’m maxed out on SPS timing with no CF’s being logged, so was thinking about upping it a bit. Just haven’t used it before

 

[-pseudonymous-]

Hi Ollie, I’m good thanks mate hope you are too? Thanks for the advice, I’ll have a go at logging block 118 to see what that says, I’ve a feeling it could be N75 related you know. Mine has the C variant N75, I don't think you can’t get these anymore, am I right in thinking the F is the same one with a newer part number? I think the Vac hoses must be plumbed in right as this has only just started (not straight after plumbing them in). I also did them one by one so I knew they went back in the same places. I’ll let you know how I get on.

On another note, I was going to drop you a PM about Lemmiwinks, I’m maxed out on SPS timing with no CF’s being logged, so was thinking about upping it a bit. Just haven’t used it before

All good here cheers mate. Yeah the C valves were superseded with the F variant. PM me your email address and i'll send you a copy of lemmiwinks if you dont already have one. Its dead easy to use, just increase the timing offset in Ch09 till you see CF's of around 3 on block 020 in Vag-Com. You'll probably be able to add around 3 degrees or so. Block 003 shows your actual timing curve which should ideally increase smoothly to redline.

You need to remember to remove the insrument cluster fuse when using Lemmiwinks otherwise it wont communicate with the ecu. I think its fuse no.26, second from left on the top row of your fuse box.

I would get your boost issues sorted first thought before you have a play with this

 

[-=Rob=-]

Thanks Ollie - I'll drop you a PM

 

[cupra_spencer]

Im getting this same problem. i have the N75 bypass done though. iv learnt just either just tickle the throttle or be flat to the floor. any half throttle and its jerkinging the car backward & forwards like made with the boost jumping up & down.

this in return gives a missfire every now & again and my ecu light comes on along with the dreaded limp mode. Im kinda fed up of it now and a solution would be great.

Its been like it since i bought it last december. since then its had 4 new coil packs, 2 sets of plugs and 2 new mafs and the problem persists. Im all out of ideas! i just think the map isn't right.

It had a KO3s CC stage 2 map at Badger 5 about 2 months before i bought it and i think it needs a proper map and not a generic.

Any Help?

Dan

 

[-pseudonymous-]

Im getting this same problem. i have the N75 bypass done though. iv learnt just either just tickle the throttle or be flat to the floor. any half throttle and its jerkinging the car backward & forwards like made with the boost jumping up & down.

this in return gives a missfire every now & again and my ecu light comes on along with the dreaded limp mode. Im kinda fed up of it now and a solution would be great.

Its been like it since i bought it last december. since then its had 4 new coil packs, 2 sets of plugs and 2 new mafs and the problem persists. Im all out of ideas! i just think the map isn't right.

It had a KO3s CC stage 2 map at Badger 5 about 2 months before i bought it and i think it needs a proper map and not a generic.

Any Help?

Dan

You've bypassed the N75 valve how? By fitting a boost contoller? Or do you mean you have done a N249 bypass? Have you had the car plugged into Vag-Com to scan for faults?

 

[cupra_spencer]

I havn't done it personally but i was told it has been done. iv got some wires coming from the coil looms with resistors on which bypass is that? i also have a blanked off ribbed hose. i come from a saxo vts background so havn't really got a clue when it comes to vw engines with turbo's lol.

 

[Pabs]

See my thread here:
http://www.seatcupra.net/forums/showthread.php?t=234025


I've got it too... but I *think* I've found a fix.... will update it if the fix works!

 

[ibizacupra]

Im getting this same problem. i have the N75 bypass done though. iv learnt just either just tickle the throttle or be flat to the floor. any half throttle and its jerkinging the car backward & forwards like made with the boost jumping up & down.

this in return gives a missfire every now & again and my ecu light comes on along with the dreaded limp mode. Im kinda fed up of it now and a solution would be great.

Its been like it since i bought it last december. since then its had 4 new coil packs, 2 sets of plugs and 2 new mafs and the problem persists. Im all out of ideas! i just think the map isn't right.

It had a KO3s CC stage 2 map at Badger 5 about 2 months before i bought it and i think it needs a proper map and not a generic.

Any Help?

Dan

all due respect - bollox.. the map would have been fine when it left me and will still be now. Maps dont change

Check your pipes for leaks etc etc.. map is not the cause, it did'nt do it when remapped, so "something else" has "changed" - look there first. Whats changed since?

No remap will map out an inherant fault.. you will waste your money
Sounds like you have some pipe issues and some bodged solenoid bypasses done on there... all of which can piss the ecu off and cause running problems.

If you want it looking at, call me...
regards
bill

 

[-=Rob=-]

Its more than likely your N75 valve playing up..

Quick update - Ten out of ten Ollie, I replaced the N75 today with a newer F variant and the boost problem has now gone, thanks for the advice...

Its dead easy to use, just increase the timing offset in Ch09 till you see CF's of around 3 on block 020 in Vag-Com. You'll probably be able to add around 3 degrees or so.

Have also been playing with Lemmiwinks today, 2.25deg added and I'm getting CF's below 3 where they are shown, 3deg's added and I'm getting 2.5-3's but have seen some around 3.8's so thinking 2.25deg is good?

Edit - Been out this evening and done more logs, CF's @ 2.25deg's is below 3 around 2, upped to 3deg's timing and now pulling 2.8's. Guessing the denser evening air has this impact? Not sure wether to keep timing on 3 or drop it back? Goes better on 3

 

[JB!]

partnumber and cost rob?

 

[-=Rob=-]

partnumber and cost rob?

JB - The part number is 058906283F - I managed to get a used one for £16, but I think they are £50ish new.

 

[-pseudonymous-]

Quick update - Ten out of ten Ollie, I replaced the N75 today with a newer F variant and the boost problem has now gone, thanks for the advice...



Have also been playing with Lemmiwinks today, 2.25deg added and I'm getting CF's below 3 where they are shown, 3deg's added and I'm getting 2.5-3's but have seen some around 3.8's so thinking 2.25deg is good?

Edit - Been out this evening and done more logs, CF's @ 2.25deg's is below 3 around 2, upped to 3deg's timing and now pulling 2.8's. Guessing the denser evening air has this impact?

Glad you got it sorted Rob! Occasional CF's of 3.8 are ok aslong as they are not sustained, but bare in mind the ambient temperatures of late are quite low but in slightly warmer weather you may notice the CF's rise to a higher unacceptable level.

I would log block 020 and 003 together to show your actual timing curve and post the logs up here for us to look at. Looks like you've got it running pretty sweet now though

 

[-=Rob=-]

Glad you got it sorted Rob! Occasional CF's of 3.8 are ok aslong as they are not sustained, but bare in mind the ambient temperatures of late are quite low but in slightly warmer weather you may notice the CF's rise to a higher unacceptable level.

I would log block 020 and 003 together to show your actual timing curve and post the logs up here for us to look at. Looks like you've got it running pretty sweet now though

Cheers Ollie - I've take some logs this morning, three with timing 3.00 and three with timing 2.25. The first run on each has lower CF's, but runs two and three see them creep up, maybe heatsoak factor in between me stopping and setting the laptop to log again? Here they are anyway, blocks 020 and 003, what are your thoughts? I'm reckoning 2.25 timing is prob best.

Boost 9 Timing 9 plus 3deg via Lemmiwinks Run 1

Group A:	'020				Group B:	'003			
	Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization		RPM	Mass Flow	Load	Ign. Timing
TIME					TIME				
STAMP	 CF	 CF	 CF	 CF	STAMP	 /min	 g/s	%	 °BTDC
0.37	0	0	0	0	0	2080	49.22	100	11.3
1.17	0	0	0	0	0.77	2240	64	100	8.3
1.97	0	3	3	0	1.57	2400	84.92	100	6.8
2.77	0	3	3	0	2.37	2720	110.53	100	4.5
3.57	3	3	2.3	3	3.17	2960	118.83	100	4.5
4.37	3	2.3	2.3	3	3.97	3200	129.28	100	3.8
5.28	3	2.3	2.3	3	4.79	3440	133.03	100	4.5
6.08	3	2.3	2.3	3	5.68	3720	131.14	100	5.3
6.88	2.3	2.3	1.5	2.3	6.48	3920	135.28	100	6.8
7.68	2.3	2.3	1.5	2.3	7.27	4120	136.19	100	6
8.48	2.3	1.5	1.5	2.3	8.08	4280	139.78	100	7.5
9.28	2.3	1.5	1.5	2.3	8.87	4440	142.39	100	8.3
10.07	1.5	1.5	1.5	2.3	9.68	4600	145.25	100	7.5
10.88	1.5	1.5	0.8	1.5	10.48	4760	151.5	100	9
11.78	1.5	1.5	0.8	1.5	11.38	4920	154.58	100	9
12.69	1.5	0.8	0.8	1.5	12.28	5080	158.03	100	9.8
13.49	1.5	0.8	0.8	1.5	13.09	5200	157.25	100	10.5
14.29	0.8	0.8	0.8	0.8	13.89	5320	157.36	100	9.8
15.07	0.8	0.8	0	0.8	14.67	5440	155.78	100	10.5
15.87	0.8	0.8	0	0.8	15.47	5560	156.39	99.6	10.5
16.67	0.8	0	0	0.8	16.27	5680	157	100	11.3
17.47	0.8	0	0	0.8	17.07	5760	157.25	100	12
18.27	0.8	0	0	0.8	17.87	5840	157	100	12.8
19.07	0	0	0	0	18.67	5960	158.36	100	12
19.99	0	0	0	0	19.47	6040	158.11	100	12
20.79	0	0	0	0	20.39	6120	158.67	100	12.8
21.68	0	0	0	0	21.19	6160	158.36	100	12.8

Boost 9 Timing 9 plus 3deg via Lemmiwinks Run 2

Group A:	'020				Group B:	'003			
	Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization		RPM	Mass Flow	Load	Ign. Timing
TIME					TIME				
STAMP	 CF	 CF	 CF	 CF	STAMP	 /min	 g/s	%	 °BTDC
0.4	0	0	0	0	0	1320	20.22	84.7	16.5
1.18	0	0	0	0	0.78	1400	23.81	85.9	14.3
1.98	0	0	0	0	1.58	1480	27.94	88.6	12.8
2.78	0	0	0	0	2.38	1600	31.78	91.4	11.3
3.58	0	0	0	0	3.18	1760	37.36	94.1	11.3
4.38	0	0	0	3	3.98	1880	41.67	97.6	10.5
5.18	0	3	0	3	4.78	2040	52.89	100	9
5.98	0	3	0	3	5.58	2240	66.58	100	3.8
6.78	0	4.5	3	2.3	6.38	2440	88.39	100	3.8
7.58	3	4.5	3	5.3	7.18	2720	118.81	100	1.5
8.38	3	4.5	3	5.3	7.98	3000	125.92	100	4.5
9.18	3	4.5	3	5.3	8.78	3240	131.19	100	4.5
10.09	2.3	3.8	2.3	4.5	9.69	3520	130.08	100	3.8
10.89	2.3	3.8	2.3	4.5	10.49	3760	130.92	100	6.8
11.69	2.3	3.8	2.3	4.5	11.29	3960	134.78	100	5.3
12.49	2.3	3.8	2.3	3.8	12.09	4160	137.53	100	7.5
13.29	1.5	3	2.3	3.8	12.89	4320	139.39	100	6.8
14.09	1.5	3	1.5	3.8	13.69	4480	143.08	100	8.3
14.89	1.5	3	1.5	3.8	14.49	4680	147.81	100	9
15.69	1.5	3	1.5	3.8	15.29	4800	151.5	100	7.5
16.49	1.5	3	1.5	3	16.09	4960	154.36	100	7.5
17.5	0.8	2.3	0.8	3	16.99	5120	155.75	100	8.3
18.3	0.8	2.3	0.8	3	17.9	5280	157.06	100	8.3
19.1	0.8	2.3	0.8	3	18.7	5360	155.97	100	9.8
19.9	0.8	2.3	0.8	2.3	19.5	5480	156.36	100	8.3
20.7	0.8	2.3	0.8	2.3	20.3	5600	156.61	100	9
21.48	0.8	1.5	0.8	2.3	21.08	5680	155.61	100	10.5
22.28	0	1.5	0	2.3	21.88	5760	155.33	100	11.3
23.08	0	1.5	0	2.3	22.68	5840	156.69	100	12
23.88	0	1.5	0	1.5	23.48	5920	156.44	100	9.8
24.68	0	1.5	0	1.5	24.28	6000	157.56	100	12
25.48	0	0.8	0	1.5	25.08	6040	157	100	10.5
26.28	0	0.8	0	1.5	25.88	6120	157.56	100	12.8
27.08	0	0.8	0	1.5	26.68	6160	156.17	100	12.8
27.88	0	0.8	0	1.5	27.48	6200	156.86	100	11.3
28.68	0	0.8	0	0.8	28.28	6280	158.39	100	11.3
29.48	0	0	0	0.8	29.08	6320	156.86	100	12
30.28	0	0	0	0.8	29.88	6360	157.56	100	12.8
31.08	0	0	0	0.8	30.68	6400	156.17	100	12
31.99	0	0	0	0.8	31.59	6440	157.81	100	12
32.79	0	0	0	0	32.39	6480	157.81	100	12
33.58	0	0	0	0	33.19	6480	158.11	100	12.8
34.38	0	0	0	0	33.98	6520	158.58	100	12.8
35.18	0	0	0	0	34.78	6520	157.56	100	12.8
35.98	0	0	0	0	35.58	6560	158.36	100	13.5
36.78	0	0	0	0	36.38	6560	158.11	100	12.8
37.58	0	0	0	0	37.18	6600	158.11	100	12.8

Boost 9 Timing 9 plus 3deg via Lemmiwinks Run 3

Group A:	'020				Group B:	'003			
	Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization		RPM	Mass Flow	Load	Ign. Timing
TIME					TIME				
STAMP	 CF	 CF	 CF	 CF	STAMP	 /min	 g/s	%	 °BTDC
0	0	1.5	0	0	0.4	1720	34.89	93.7	12
0.8	0	1.5	0	0	1.2	1880	40.31	97.3	11.3
1.6	0	0.8	0	0	2	2000	48.83	100	10.5
2.4	0	0	0	0	2.8	2160	58.92	100	7.5
3.2	0	3	3	0	3.6	2360	76.28	100	3.8
4	3	3	3	3	4.4	2600	99.36	100	3
4.8	3	3	3	3	5.2	2840	114.81	100	4.5
5.71	3	6	3	3	6.11	3120	125.89	100	1.5
6.51	2.3	6	2.3	2.3	6.91	3360	134.36	100	1.5
7.31	2.3	6	2.3	2.3	7.71	3600	128.72	100	6
8.11	2.3	5.3	2.3	2.3	8.51	3800	133.31	100	3.8
8.91	2.3	5.3	1.5	2.3	9.31	4000	134.86	100	7.5
9.71	1.5	5.3	1.5	1.5	10.11	4160	135.97	100	8.3
10.51	1.5	5.3	1.5	1.5	10.91	4360	138.89	100	8.3
11.31	1.5	4.5	1.5	1.5	11.71	4520	143.28	100	9
12.11	1.5	4.5	1.5	1.5	12.51	4680	146.31	100	9
12.91	1.5	4.5	0.8	1.5	13.31	4800	152.17	100	9.8
13.8	0.8	4.5	0.8	0.8	14.2	4960	155.28	100	9.8
14.6	0.8	3.8	0.8	0.8	15.12	5120	156.42	100	10.5
15.52	0.8	3.8	0.8	0.8	15.92	5240	157.5	100	6.8
16.32	0.8	3.8	0.8	0.8	16.72	5360	155.42	100	9.8
17.12	0.8	3.8	0.8	0.8	17.5	5440	153.64	100	9.8
17.9	0	3.8	0	0	18.3	5520	155.89	100	10.5
18.7	0	3	0	0	19.1	5600	154.81	100	11.3
19.5	0	3	0	0	19.9	5680	155.61	100	11.3
20.3	0	3	0	0	20.7	5760	156.69	100	11.3
21.1	0	3	0	0	21.5	5840	156.17	100	11.3

Boost 9 Timing 9 plus 2.25deg via Lemmiwinks Run 1

Group A:	'020				Group B:	'003			
	Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization		RPM	Mass Flow	Load	Ign. Timing
TIME					TIME				
STAMP	 CF	 CF	 CF	 CF	STAMP	 /min	 g/s	%	 °BTDC
0	0	0	0	0	0.4	1240	20.03	83.5	15
0.8	3	0	0	0	1.2	1360	23.64	85.5	12.8
1.6	3	0	0	0	2	1480	29.06	87.8	12
2.4	3	0	0	0	2.8	1600	32.19	91	7.5
3.2	1.5	0	0	0	3.6	1760	37.5	94.1	10.5
4	0.8	0	0	0	4.4	1880	43.56	97.6	9.8
4.8	0	0	0	0	5.31	2080	55.17	100	7.5
5.71	0	0	0	0	6.11	2280	71.11	100	6
6.51	0	0	0	0	6.91	2560	96.53	100	5.3
7.31	0	3	0	0	7.71	2840	122.47	100	3.8
8.11	0	3	0	0	8.51	3120	129.33	100	3.8
8.91	0	3	0	0	9.31	3400	133.03	100	5.3
9.71	0	2.3	0	0	10.11	3640	137.03	100	7.5
10.51	0	2.3	0	0	10.91	3880	138.42	100	6
11.31	0	2.3	0	0	11.71	4120	140.08	100	9
12.11	0	1.5	0	0	12.51	4320	141.86	100	9
12.91	0	1.5	0	0	13.31	4480	146.72	100	9
13.71	0	1.5	0	0	14.11	4680	148.86	100	8.3
14.51	0	1.5	0	0	14.91	4840	153.81	100	8.3
15.31	0	1.5	0	0	15.8	5040	158.25	100	10.5
16.2	0	0.8	0	0	16.72	5200	156.53	100	10.5
17.12	0	0.8	0	0	17.52	5320	156.44	100	10.5
17.92	0	0.8	0	0	18.32	5440	156.61	100	9.8
18.72	0	0.8	0	0	19.12	5560	156.44	100	10.5

Boost 9 Timing 9 plus 2.25deg via Lemmiwinks Run 2

Group A:	'020				Group B:	'003			
	Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization		RPM	Mass Flow	Load	Ign. Timing
TIME					TIME				
STAMP	 CF	 CF	 CF	 CF	STAMP	 /min	 g/s	%	 °BTDC
0.35	0	0	0	0	0.75	1720	36.67	93.7	10.5
1.15	0	0	0	0	1.55	1840	41.11	96.1	10.5
1.95	0	0	0	0	2.35	1960	46.58	99.6	9
2.75	0	0	0	0	3.15	2120	56.67	100	4.5
3.55	0	0	0	0	3.95	2240	71.69	100	6
4.35	0	0	0	3	4.75	2480	91.81	100	3
5.15	3	3	3	3	5.55	2720	111.56	100	3.8
5.95	3	3	3	3	6.35	3000	121.19	100	3.8
6.73	3	3	3	3	7.15	3240	130.78	100	3.8
7.64	2.3	2.3	2.3	2.3	8.04	3480	134.44	100	4.5
8.44	2.3	2.3	2.3	2.3	8.84	3720	132.56	100	5.3
9.35	2.3	2.3	2.3	2.3	9.83	3960	135.5	100	5.3
10.35	2.3	2.3	14.3	159.39	19.44	5640	155.92	100	9.8
19.84	0	0	0	0	20.35	5720	156.44	100	10.5
20.75	0	0	0	0	21.15	5800	155.89	100	11.3
21.55	0	0	0	0	21.95	5880	157.56	100	11.3
22.35	0	0	0	0	22.75	5960	156.69	100	11.3
23.15	0	0	0	0	23.53	6040	157.19	100	10.5

Boost 9 Timing 9 plus 2.25deg via Lemmiwinks Run 3

Group A:	'020				Group B:	'003			
	Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization		RPM	Mass Flow	Load	Ign. Timing
TIME					TIME				
STAMP	 CF	 CF	 CF	 CF	STAMP	 /min	 g/s	%	 °BTDC
0	0	0	0	3	0.4	1720	35.72	94.5	9.8
0.8	0	0	0	3	1.2	1840	40.22	97.3	10.5
1.6	0	0	0	3	2	2000	48.58	100	9.8
2.4	0	0	0	2.3	2.8	2200	61.72	100	6.8
3.2	0	0	0	2.3	3.6	2360	80.25	100	2.3
4	0	0	0	2.3	4.4	2600	104.69	100	3.8
4.8	3	3	3	1.5	5.2	2920	114.56	100	3
5.58	3	3	3	1.5	5.98	3160	128.42	100	3.8
6.38	3	3	3	1.5	6.78	3400	132.22	100	4.5
7.18	2.3	3	2.3	1.5	7.6	3640	133.89	100	4.5
7.98	2.3	2.3	2.3	0.8	8.38	3840	131.83	100	5.3
8.8	2.3	2.3	2.3	0.8	9.2	4040	137.86	100	8.3
9.69	1.5	2.3	2.3	0.8	10.21	4280	139.94	100	8.3
10.61	1.5	2.3	1.5	0.8	11.01	4440	142	100	6.8
11.5	1.5	2.3	1.5	0	11.9	4640	147.14	100	8.3
12.3	1.5	1.5	1.5	0	12.7	4800	149.53	100	8.3
13.1	1.5	1.5	1.5	0	13.5	4960	156.31	100	9.8
13.9	0.8	1.5	1.5	0	14.4	5120	157.56	100	9
14.89	0.8	1.5	0.8	0	15.29	5280	156.19	100	9.8
15.69	0.8	0.8	0.8	0	16.09	5400	155.39	100	9
16.49	0.8	0.8	0.8	0	16.89	5560	155.47	100	9
17.29	0.8	0.8	0.8	0	17.69	5640	155.33	100	10.5
18.09	0	0.8	0.8	0	18.49	5720	156.39	100	10.5
18.89	0	0.8	0	0	19.29	5800	155.92	100	10.5
19.69	0	0.8	0	0	20.09	5880	158.11	100	11.3
20.49	0	0	0	0	20.89	5920	158.22	100	10.5

 

[-pseudonymous-]

Nice logs there mate. Yeah i would personally stick with the added 2.25° as it will give you a bit of head room if your really giving it some beans. If the weather gets much cooler you may get away with increasing it to 3.00° but as it stands i wouldn't as your seeing slightly excessive CF's.

You timing curve looks good and airflow readings are healthy too!