IS200t tune
07-06-17, 10:29 AM
#1156
Lexus Test Driver
If 10%, the IS would have the worlds most efficient drivetrain. hahah.
Question for TTI: does Stage 1 tune eliminate the 30% throttle delay? Or only Stage 2? Seems to me the price would be worth it to eliminate that delay alone.
Question for TTI: does Stage 1 tune eliminate the 30% throttle delay? Or only Stage 2? Seems to me the price would be worth it to eliminate that delay alone.
07-06-17, 10:45 AM
#1157
Lexus Champion
Thread Starter
Yes both tunes are designed to reduce the throttle delay (Stage 2 more). The TTI re flash will give you a nice power increase in both Stage 1 or Stage 2 (over stock) and makes the car a whole lot more fun to drive!
Last edited by Sheddy; 07-06-17 at 10:52 AM.
07-06-17, 10:49 AM
#1158
Removing the throttle limiter will allow boost to build very quickly, and in turn if u have a restricted exhaust system or a stock DP this will simply be setting your turbo to fail very soon due to sudden built of allot of back pressure, ultimately thats the reason Stage 2 comes with clear recommendation of installing the DP
Nuke
The following users liked this post:
Sheddy (07-06-17)
07-06-17, 01:44 PM
#1160
Lexus Champion
Thread Starter
j/kMore progress to come, but in the meantime we can enjoy what TTI is currently offering us.
07-06-17, 03:20 PM
#1161
Lexus Test Driver
In other tuning worlds.. Burger dyno'd Q50 red sport 374/397 to the wheels. tuned to 405/454.
07-06-17, 06:31 PM
#1162
Lexus Champion
Thread Starter
Last edited by Sheddy; 07-06-17 at 06:44 PM.
07-07-17, 07:29 AM
#1163
Pole Position
Somebody told my friend that with full bolt on's and a dyno tune he would be pushing close to cla45 amg power.
Makes me think also that we are pushing 19 psi with stage 2 but only reaching 245 whp (in my case) its problably because of the turbo? i dont know much about tuning i'm only waiting on more R & D lol
I found this video in which they claim 318whp on a cla 250 with the following mods
HG Motorsports Performance Cold Air Intake
HG Motorsports Performance Intercooler
HG Motorsports Performance 2.5 In Turbo Back Exhaust System w/ downpipe
HG Motorsports Performance ECU Tune
Blow-Off Valve
Dyno Tuned at 318WHP
This car is running 11 psi of boost pressure.
Last edited by daniellina; 07-07-17 at 07:32 AM.
07-07-17, 09:10 AM
#1164
Lexus Test Driver
oh ya there's 2.0 Chevy Cobalts running around with 500wheel stock insides lol.
07-07-17, 09:13 AM
#1165
Took a test drive on the CLA once when i was shopping around for a car and there was lots of cheap plastic all around, the performance version was a beast though. For a more solid car, the C class is a better investment and has stronger resale value. The difference in price between the CLA and C-Class isn't all that prohibitively different, imo. But the interior feel is worlds apart.
07-07-17, 11:40 AM
#1166
that HP on 11psi suggest a larger turbo. it just literally flows more CFM.
maximum turbo cfm output = (3.14)(turbo compressor wheel size ÷ 2)2
3
maximum turbo boost in psi = (14.7 psi)(maximum turbo cfm output)
engine cfm
https://www.turbobygarrett.com/turbo...mass_flow_rate
No more guessing games, just find the variables and you can find out what the estimated max power for our engine and turbo is. My guess is the stock turbo is very small and with the stage 2 tune it is getting pretty close to its maximum efficiency and there isn't a ton left on the table. The dynos show a total under the curve change but not significant max hp and TQ gains. I think most people will love the fact that the pedal will feel more linear and not restricted. However dreams of making alot more power on this stock turbo seems far fetched as minimal maximum gains were found with added boost. The Stage 2 tune is like 4+ extra psi and more aggressive tuning right? +20whp gain and +4psi seems like its running out of breath at 5whp per added psi, or maybe that is normal im not sure. Either way the maximum boost this turbo can do needs to be found out to know how much more room it has in its stock form.
maximum turbo cfm output = (3.14)(turbo compressor wheel size ÷ 2)2
3
maximum turbo boost in psi = (14.7 psi)(maximum turbo cfm output)
engine cfm
https://www.turbobygarrett.com/turbo...mass_flow_rate
No more guessing games, just find the variables and you can find out what the estimated max power for our engine and turbo is. My guess is the stock turbo is very small and with the stage 2 tune it is getting pretty close to its maximum efficiency and there isn't a ton left on the table. The dynos show a total under the curve change but not significant max hp and TQ gains. I think most people will love the fact that the pedal will feel more linear and not restricted. However dreams of making alot more power on this stock turbo seems far fetched as minimal maximum gains were found with added boost. The Stage 2 tune is like 4+ extra psi and more aggressive tuning right? +20whp gain and +4psi seems like its running out of breath at 5whp per added psi, or maybe that is normal im not sure. Either way the maximum boost this turbo can do needs to be found out to know how much more room it has in its stock form.
Last edited by zcon; 07-07-17 at 11:51 AM.
The following users liked this post:
Sheddy (07-07-17)
07-07-17, 01:43 PM
#1167
Lexus Champion
Thread Starter
that HP on 11psi suggest a larger turbo. it just literally flows more CFM.
maximum turbo cfm output = (3.14)(turbo compressor wheel size ÷ 2)2
3
maximum turbo boost in psi = (14.7 psi)(maximum turbo cfm output)
engine cfm
https://www.turbobygarrett.com/turbo...mass_flow_rate
No more guessing games, just find the variables and you can find out what the estimated max power for our engine and turbo is. My guess is the stock turbo is very small and with the stage 2 tune it is getting pretty close to its maximum efficiency and there isn't a ton left on the table. The dynos show a total under the curve change but not significant max hp and TQ gains. I think most people will love the fact that the pedal will feel more linear and not restricted. However dreams of making alot more power on this stock turbo seems far fetched as minimal maximum gains were found with added boost. The Stage 2 tune is like 4+ extra psi and more aggressive tuning right? +20whp gain and +4psi seems like its running out of breath at 5whp per added psi, or maybe that is normal im not sure. Either way the maximum boost this turbo can do needs to be found out to know how much more room it has in its stock form.
maximum turbo cfm output = (3.14)(turbo compressor wheel size ÷ 2)2
3
maximum turbo boost in psi = (14.7 psi)(maximum turbo cfm output)
engine cfm
https://www.turbobygarrett.com/turbo...mass_flow_rate
No more guessing games, just find the variables and you can find out what the estimated max power for our engine and turbo is. My guess is the stock turbo is very small and with the stage 2 tune it is getting pretty close to its maximum efficiency and there isn't a ton left on the table. The dynos show a total under the curve change but not significant max hp and TQ gains. I think most people will love the fact that the pedal will feel more linear and not restricted. However dreams of making alot more power on this stock turbo seems far fetched as minimal maximum gains were found with added boost. The Stage 2 tune is like 4+ extra psi and more aggressive tuning right? +20whp gain and +4psi seems like its running out of breath at 5whp per added psi, or maybe that is normal im not sure. Either way the maximum boost this turbo can do needs to be found out to know how much more room it has in its stock form.
I do believe that the stock turbo can be pushed a little more, so lets see what happens. There is an issue with knocking at higher boost levels and Tony is doing some more research to resolve this.
The following users liked this post:
daniellina (07-07-17)
07-07-17, 02:55 PM
#1168
Lexus Test Driver
Took a test drive on the CLA once when i was shopping around for a car and there was lots of cheap plastic all around, the performance version was a beast though. For a more solid car, the C class is a better investment and has stronger resale value. The difference in price between the CLA and C-Class isn't all that prohibitively different, imo. But the interior feel is worlds apart.
07-07-17, 03:01 PM
#1169
Pole Position
I don't know about that. my friends CLA rides real good i dont know if the 4matic has something to do with it i doubt it. but the car is really nice i wouldn't get one tho i don't like the styling very much
07-07-17, 03:05 PM
#1170
Pole Position
Thats good news, hopefully he solves that and we get a little more of much needed boost!.