My little project - IS200 Turbo
My little project - IS200 Turbo
The code I have been getting is P0420, which is saying it thinks the cat is not working properly. But this only comes up occasionally. The cat is definitely fine since Charlesworth put it on their MoT emissions machine, and it flew through that. Charlesworth reckons the sensor just can't cope with the differing amount of gases that it's seeing now.
Today I had some other codes come up on the way to the dyno, which was slightly worrying. But the codes were P0171 and P0174, which is a warning about the AFR being too lean. I've got a gauge to monitor this myself of course, and I think the codes possibly came up because I was experimenting with the throttle to reproduce the problem I have with it going a bit lumpy on very light throttle - the fuelling was certainly fine on the dyno.
LEX11S, P0135 is the O2 sensor heater circuit as you say, I wonder if you have a real sensor problem there ? The heater is needed to heat the sensor up so that it can detect the AFR properly.
![[Image: Sig-enginebay.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/Sig-enginebay.jpg)
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
18-03-2017, 06:36 AM #1,021The dyno went well, will post up the graphs/figures shortly.
The code I have been getting is P0420, which is saying it thinks the cat is not working properly. But this only comes up occasionally. The cat is definitely fine since Charlesworth put it on their MoT emissions machine, and it flew through that. Charlesworth reckons the sensor just can't cope with the differing amount of gases that it's seeing now.
Today I had some other codes come up on the way to the dyno, which was slightly worrying. But the codes were P0171 and P0174, which is a warning about the AFR being too lean. I've got a gauge to monitor this myself of course, and I think the codes possibly came up because I was experimenting with the throttle to reproduce the problem I have with it going a bit lumpy on very light throttle - the fuelling was certainly fine on the dyno.
LEX11S, P0135 is the O2 sensor heater circuit as you say, I wonder if you have a real sensor problem there ? The heater is needed to heat the sensor up so that it can detect the AFR properly.
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
I'm well-chuffed with this. It matches well to Noble's figures (Charlie from SRR was expecting less, because he thought that Noble's dyno typically read a bit higher than theirs - though maybe with putting 1000 miles on the engine it might have developed a bit more bhp ?).
Also, I'm very happy that the car now has significantly more power at the wheels (211 bhp) than it did at the flywheel when stock (153 bhp).
The graphs also show my stock figures (since it's been dyno's at SRR when stock), which provide a very interesting comparison. As you would expect, there is actually slightly less power low down in the rev range, due to the turbo acting as a restrictor. But at 3550rpm this crosses over, and it starts to develop a lot more power (spot the big gap between the red and black solid lines on the first graph !).
On all of the graphs, the red lines are the stock figures (from a previous dyno session), and the black ones are the current figures.
On this first graph, the solid lines are the power (bhp, axis on the left), and the dotted lines are the fuelling (axis on the right). Remember that as the fuelling line dips down (smaller number AFR), this indicates more fuel is going in (richer mixture, hence less air to fuel).
![[Image: Dyno1.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/Dyno1.jpg)
This second graph shows power (left-hand axis, black line for current power) and also boost (right-hand axis, black dotted line), which is peaking at approx 0.9 bar and holding at 0.8 bar (these are the monitored figures and the actual boost is probably a bit higher, e.g. the manual boost controller is set to 1.0 bar).
![[Image: Dyno2.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/Dyno2.jpg)
The next graph shows torque on the right-hand axis, as the dotted lines (stock and current).
![[Image: Dyno3.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/Dyno3.jpg)
Finally we have the figures measured at the wheels (the previous figures are calculated from these for the flywheel, using measured transmission losses).
![[Image: Dyno4.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/Dyno4.jpg)
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
18-03-2017, 07:14 AM #1,022Here we go. Flywheel figures are 257.9 bhp and 247 lb/ft torque. At the wheels this is 211.3 bhp and 201 lb/ft.
I'm well-chuffed with this. It matches well to Noble's figures (Charlie from SRR was expecting less, because he thought that Noble's dyno typically read a bit higher than theirs - though maybe with putting 1000 miles on the engine it might have developed a bit more bhp ?).
Also, I'm very happy that the car now has significantly more power at the wheels (211 bhp) than it did at the flywheel when stock (153 bhp).
The graphs also show my stock figures (since it's been dyno's at SRR when stock), which provide a very interesting comparison. As you would expect, there is actually slightly less power low down in the rev range, due to the turbo acting as a restrictor. But at 3550rpm this crosses over, and it starts to develop a lot more power (spot the big gap between the red and black solid lines on the first graph !).
On all of the graphs, the red lines are the stock figures (from a previous dyno session), and the black ones are the current figures.
On this first graph, the solid lines are the power (bhp, axis on the left), and the dotted lines are the fuelling (axis on the right). Remember that as the fuelling line dips down (smaller number AFR), this indicates more fuel is going in (richer mixture, hence less air to fuel).
This second graph shows power (left-hand axis, black line for current power) and also boost (right-hand axis, black dotted line), which is peaking at approx 0.9 bar and holding at 0.8 bar (these are the monitored figures and the actual boost is probably a bit higher, e.g. the manual boost controller is set to 1.0 bar).
The next graph shows torque on the right-hand axis, as the dotted lines (stock and current).
Finally we have the figures measured at the wheels (the previous figures are calculated from these for the flywheel, using measured transmission losses).
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
did John make it in the end?
My Garage
Supra Build Thread
' Nothing feels quick when your other car has a 1000bhp - JamieP
Quote:A Supra without a spoiler is like a Gypsy's dog without a Nob.
Dan_Turism0
18-03-2017, 07:27 AM #1,023good news steve did John make it in the end?
My Garage
Supra Build Thread
' Nothing feels quick when your other car has a 1000bhp - JamieP
Quote:A Supra without a spoiler is like a Gypsy's dog without a Nob.
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
18-03-2017, 07:28 AM #1,024Yes, John made it, hope he didn't break too many speed limits to get there ! I'll leave him to report on his run (and also his sorting out of his CV joint problems).
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
Lexus IS200 Mods--TTE Supercharger, Tein Superstreet Coilovers & EDFC, 6000K HID Lights, HKS Silent High Power Exhaust, DBA Front Discs, Kenwood DNX9240 Head Unit, 19" Rims, TRD Kit, FIGS Bonnet Struts, Greddy Pillar Pod & Defi Gauges, TTE Red ARBS . And Been To WIM twice
I well pleased you are happy with the car mate , good for you :thumbup1::thumbup1:
Lexus IS200 Mods--TTE Supercharger, Tein Superstreet Coilovers & EDFC, 6000K HID Lights, HKS Silent High Power Exhaust, DBA Front Discs, Kenwood DNX9240 Head Unit, 19" Rims, TRD Kit, FIGS Bonnet Struts, Greddy Pillar Pod & Defi Gauges, TTE Red ARBS . And Been To WIM twice
"Life's goal is not to arrive safely at the grave in a well preserved body. But, rather to skid in sideways........
totally worn out and broken, shouting 'Holy ****, WHAT A RIDE!'"
FirebirdPhil
18-03-2017, 08:30 AM #1,026Lots of interesting graphs mate. Very smooth power delivery:thumbup1:
"Life's goal is not to arrive safely at the grave in a well preserved body. But, rather to skid in sideways........
totally worn out and broken, shouting 'Holy ****, WHAT A RIDE!'"
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
18-03-2017, 09:15 AM #1,027Yeah good point Phil, I hadn't really had a chance to notice that the graphs do show pretty clear how well it pulls - the turbo pulls very smoothly indeed, it doesn't come in with a big bang after doing nothing for ages - from 3500rpm it just pulls and pulls :thumbup:
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
![[Image: IMG_0332.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/IMG_0332.jpg)
![[Image: IMG_0335.jpg]](http://i5.photobucket.com/albums/y179/SteveHammatt/IMG_0335.jpg)
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
steviewevie
18-03-2017, 09:27 AM #1,028Couple of pics of my car on the dyno (at Surrey Rolling Road) :
IS200 Turbo project now just about complete ! See my thread here and leave your comments.
Now running standalone Syvecs ECU and no stock ECU !
Unregistered
lexynik
18-03-2017, 10:45 AM #1,029well done-in reality on the power graph even where you say you have lost a little bit due to the turbo acting as a blocker it really is a tiny bit and the power is delivered in the same smooth way as stock until it crosses over and never looks back - as you aimed for it looks very drivable - if it was me id be very pleased with myself in your shoes,impressive
Lexus IS200 Mods--TTE Supercharger, Tein Superstreet Coilovers & EDFC, 6000K HID Lights, HKS Silent High Power Exhaust, DBA Front Discs, Kenwood DNX9240 Head Unit, 19" Rims, TRD Kit, FIGS Bonnet Struts, Greddy Pillar Pod & Defi Gauges, TTE Red ARBS . And Been To WIM twice
So Steve can I have a go when we meet next ???????????????
Lexus IS200 Mods--TTE Supercharger, Tein Superstreet Coilovers & EDFC, 6000K HID Lights, HKS Silent High Power Exhaust, DBA Front Discs, Kenwood DNX9240 Head Unit, 19" Rims, TRD Kit, FIGS Bonnet Struts, Greddy Pillar Pod & Defi Gauges, TTE Red ARBS . And Been To WIM twice
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