Lexus Weds IS350
- Thread starter BRP17
- 21 comments
- 5,470 views
- 495
- TeamBRP
I've been invited to an online race @ Nurburgring 24H.
I've ran the 4hr yesterday. Best I could muster was 8:39.267
They are telling me they are doing 8:20's .
I can probably take off 2 seconds now that the engine is up 15hp ,
but I'm on the verge of crashing due to it pushing all over the place
under hard braking or accelerating in the corners.
I've ran the 4hr yesterday. Best I could muster was 8:39.267
They are telling me they are doing 8:20's .
I can probably take off 2 seconds now that the engine is up 15hp ,
but I'm on the verge of crashing due to it pushing all over the place
under hard braking or accelerating in the corners.
- 1,139
- budious
What kind of upgrades on the engine are you using for time reference?
I ran 9:04" (Nur 24h config) with Engine Tune 3, no turbos, no break-in; 345HP/Race Soft - and that was with a few faults on my first try.
Try this out and see what you think:
*Suspension
@ Ride Height: +1 / +4
@ Spring Rate: 13.3 / 12.0
@ Extension: 8 / 8
@ Compress: 8 / 8
@ Anti-Roll Bar: 6 / 6
@ Camber Ratio: 1:1 (the 2.0 / 2.0 stock I ran for 9:04" felt balanced, try other 1:1 cambers or slight adjustments 10:9, etc.)
@ Toe: 0.00 / 0.00
Notes: Just a rough in but springs and ride height are set, if you want to tweak play with dampers and anti-roll bars. Try dampers @ 8e/9c; 9e/9c; 9e/10c and the anti-roll bars in 1:1 ratio trials; +1 on front for more understeer, +1 rear for more oversteer.
Alternative Spec: (You can try this as well if rake is a problem; 8:58" at Nur 24h on 345HP/Race Soft on first try.)
@ Ride Height +4 / +4
@ Spring Rate: 12.9 / 12.0
I ran 9:04" (Nur 24h config) with Engine Tune 3, no turbos, no break-in; 345HP/Race Soft - and that was with a few faults on my first try.
Try this out and see what you think:
*Suspension
@ Ride Height: +1 / +4
@ Spring Rate: 13.3 / 12.0
@ Extension: 8 / 8
@ Compress: 8 / 8
@ Anti-Roll Bar: 6 / 6
@ Camber Ratio: 1:1 (the 2.0 / 2.0 stock I ran for 9:04" felt balanced, try other 1:1 cambers or slight adjustments 10:9, etc.)
@ Toe: 0.00 / 0.00
Notes: Just a rough in but springs and ride height are set, if you want to tweak play with dampers and anti-roll bars. Try dampers @ 8e/9c; 9e/9c; 9e/10c and the anti-roll bars in 1:1 ratio trials; +1 on front for more understeer, +1 rear for more oversteer.
Alternative Spec: (You can try this as well if rake is a problem; 8:58" at Nur 24h on 345HP/Race Soft on first try.)
@ Ride Height +4 / +4
@ Spring Rate: 12.9 / 12.0
Last edited:
- 495
- TeamBRP
Using your 1st tune, lap 2 of the 4hr
8:38.154
So definite improvement.
I can run with the Amuse that has 150 more hp through the corners,
but of course it smokes me down the back straight.
Too bad the AI takes it 1 lap too far before pitting.
It would be a good battle for 4 hrs.
8:38.154
So definite improvement.
I can run with the Amuse that has 150 more hp through the corners,
but of course it smokes me down the back straight.
Too bad the AI takes it 1 lap too far before pitting.
It would be a good battle for 4 hrs.
- 1,139
- budious
Run turbo 3 if you can and set limiter or buy another without engine tune 3?
The high rpm turbo will give you much better speed on the long straight, you can also bump aero down until you find the best mix of handling and speed, with less drag you'll get a few more MPH at top out with high rpm turbo.
- 495
- TeamBRP
Ok, so I quit the race, and bought another.
Stage 2 Engine, Stage 3 Turbo. 444hp
What a difference 👍
I used the spring and camber/toe setup #1
Went +1 on rear sway bar.
+5 on front down force.
Lead for 1st 2 laps, then the Amuse caught and passed me down the back
straight. Pushed hard, caught and passed him back.
8:33.123 In total control.
I would defiantly recommend this as a base tune, maybe add it to Wiki Tunes.
Thanks
Stage 2 Engine, Stage 3 Turbo. 444hp
What a difference 👍
I used the spring and camber/toe setup #1
Went +1 on rear sway bar.
+5 on front down force.
Lead for 1st 2 laps, then the Amuse caught and passed me down the back
straight. Pushed hard, caught and passed him back.
8:33.123 In total control.
I would defiantly recommend this as a base tune, maybe add it to Wiki Tunes.
Thanks
- 1,139
- budious
Yes, car turned out alright. Just ran it for 10 lap A-spec GT 500 series at Suzuka. Won easily with 470HP; Engine Tune 3 w/ High RPM Turbo. Only added the turbo and ran the gear box out to auto 224MPH (which was too high, didn't even hit 6th gear on Suzuka) but it still won easily, used the alternative +4/+4 setup. LSD @ 5/5/5, Aero at defaults. Still don't think it will touch my retuned RE Amemiya AspraDrink though, it dominates the same race with 420HP and puts up better laps than this car with more HP.
- 45
- ricenketchup
- ricenketchup
Any updates on this tune?
- 495
- TeamBRP
Well, I did find out that I've been racing on the V track 
On the correct 24H course I've been able to do 8:44's
I'm struggling on the 1st section.
Once onto main course, the tune is very good.
I'm using racing soft. Can get 3 strong laps before having to back off
and pit on 4.
I'm playing with the brake bias, currently 5R/8F
Front Aero is 30/ rear stock
456hp I'm geared @ 174mph
Playing with ratios, but I've extended all of them, mostly 1st,2nd, and 3rd.
That's going to depend on the track.
On the correct 24H course I've been able to do 8:44's
I'm struggling on the 1st section.
Once onto main course, the tune is very good.
I'm using racing soft. Can get 3 strong laps before having to back off
and pit on 4.
I'm playing with the brake bias, currently 5R/8F
Front Aero is 30/ rear stock
456hp I'm geared @ 174mph
Playing with ratios, but I've extended all of them, mostly 1st,2nd, and 3rd.
That's going to depend on the track.
- 1,139
- budious
You don't need that much aero with race soft for Nur, all it does is create drag and slow you down, I'd run default or less in a 4:9 ratio. 16/36 ; 20/45; 24/54
Brake bias is fine at 5/5 imo.
I customized the transmission so I'll have to look those up when I get on ps3 later.
Brake bias is fine at 5/5 imo.
I customized the transmission so I'll have to look those up when I get on ps3 later.
- 1,139
- budious
Did you try the +4/+4 setup or still using the +1/+4, the +4/+4 will handle more neutrally. I can't say I noticed any of the push, but I'll double check my setup and post a final tune later. You can try increasing rear A/R bar or change aero ratio to 5:9 or adjust camber ratio to 10:9, etc. I'd test one change at a time though.
Last edited:
- 495
- TeamBRP
I think I just need to learn that section better.
I'm using +4/+4
Don't have the corner names memorized like some of the
Green Monster freaks
But with the front down force @ +5 I can talk the corner
just after the 1st uphill at full throttle.
If I go back to default, I'm off the track.
I'm doing consistent 38's.
How anyone can do 20's with the same HP limit is beyond me.
There's no way I can pick up more than 5 seconds.
I'm using +4/+4
Don't have the corner names memorized like some of the
Green Monster freaks
But with the front down force @ +5 I can talk the corner
just after the 1st uphill at full throttle.
If I go back to default, I'm off the track.
I'm doing consistent 38's.
How anyone can do 20's with the same HP limit is beyond me.
There's no way I can pick up more than 5 seconds.
- 505
- OL_APEX
i'm using this car for a GT300 championchip and i'm 2nd overall..
The turnament rules are 355hp and 1250 kg..
The setup i use is:
-stage 2 turbo limited to 355hp
-Aero: 35/55 or 30/53 depending the track
-LSD: 10/25/15
-RH: 0/0 or 5/5
-toe: -0.04/0.18
-brake: 6/6
everything else stoc !!!
"the top speed is adjusted according to the track"
The turnament rules are 355hp and 1250 kg..
The setup i use is:
-stage 2 turbo limited to 355hp
-Aero: 35/55 or 30/53 depending the track
-LSD: 10/25/15
-RH: 0/0 or 5/5
-toe: -0.04/0.18
-brake: 6/6
everything else stoc !!!
"the top speed is adjusted according to the track"
