Sold the Boxster, Bought the Turbo
08-01-2022, 09:03 AM
#32
Also don’t think it’s quick off the line, although I don’t usually try to launch it. 1st gear maxes out quick, 2nd gear around 3500, it then takes off..
I liked Boxster clutch so much better, it’s still my favorite car. If I want quick off the line, I’ll take the CTS-V..
I liked Boxster clutch so much better, it’s still my favorite car. If I want quick off the line, I’ll take the CTS-V..
08-01-2022, 11:01 AM
#33
Three Wheelin'
There may be issues with your turbo
I can't break the tires loose at all. Maybe a tiny little chirp but that's about it. I'm barely getting up to 20-30 in 1st before red line and then in second gear is when boost kicks in and I can get damn near 70 miles an hour before I'm shifting into third. I'm usually seeing around .6-.7 boost at full throttle. Once I'm in second third fourth gear I'm flying but even like 5th gear at 5,000 RPM I step on it it's not throwing me back in the back of the seat.
I would kill for "neck snapping". That's why I bought the damn thing in the first place lol. It's like the car has a high top speed but it takes an hour to get there. Although the clutch is not when I'm used to. You have to let the clutch almost all the way out to barely get a grab in first gear I don't know if that's normal with this car or not. PPI inspector said the clutch was perfect but this is my first 911 so I'm just having to go off what he said. Also I find myself almost stalling it out every time I have to take off in first which is new for me because I've only ever driven manuals my entire life so I consider myself a decent driver. My last car was a boxster S manual and that thing was a little rocket ship.
Today I went out on a flat empty strip and practiced launching a few times. I tried launching it at 2500 3,000 3500 4,000 up to 4,500 and the most I get is either a really bogged down start or a ton of wheel hop with a really bogged down start. Was trying to find the sweet spot. There is never tires breaking loose. Although I did not turn the PSM off because I'm still learning the car and don't want to kill myself yet. Maybe that's the issue here?
For all I know I could be driving it wrong but I've only had it for a week and should probably take some driving lessons specific to the car or something. The car looks mint in and out and seems perfect other than the fact that it's molasses in January until boost kicks in.
Here's the thread I was reading on how to launch the car: (apologies if I'm not allowed to post that link here)
https://www.6speedonline.com/forums/...ual-turbo.html
Anyway I appreciate everyone's feedback. I am getting a Markski tune and an exhaust put on so maybe he can run some diagnostics for me and get to the bottom of it.
Honestly the first time I drove the car I was pretty disappointed because I thought it was going to ****ing throw me into the back like the 997 c4s manual I test drove a week before. That thing was naturally aspirated but holy **** it was quick. I feel like that thing would murder this car in a heartbeat.
I would kill for "neck snapping". That's why I bought the damn thing in the first place lol. It's like the car has a high top speed but it takes an hour to get there. Although the clutch is not when I'm used to. You have to let the clutch almost all the way out to barely get a grab in first gear I don't know if that's normal with this car or not. PPI inspector said the clutch was perfect but this is my first 911 so I'm just having to go off what he said. Also I find myself almost stalling it out every time I have to take off in first which is new for me because I've only ever driven manuals my entire life so I consider myself a decent driver. My last car was a boxster S manual and that thing was a little rocket ship.
Today I went out on a flat empty strip and practiced launching a few times. I tried launching it at 2500 3,000 3500 4,000 up to 4,500 and the most I get is either a really bogged down start or a ton of wheel hop with a really bogged down start. Was trying to find the sweet spot. There is never tires breaking loose. Although I did not turn the PSM off because I'm still learning the car and don't want to kill myself yet. Maybe that's the issue here?
For all I know I could be driving it wrong but I've only had it for a week and should probably take some driving lessons specific to the car or something. The car looks mint in and out and seems perfect other than the fact that it's molasses in January until boost kicks in.
Here's the thread I was reading on how to launch the car: (apologies if I'm not allowed to post that link here)
https://www.6speedonline.com/forums/...ual-turbo.html
Anyway I appreciate everyone's feedback. I am getting a Markski tune and an exhaust put on so maybe he can run some diagnostics for me and get to the bottom of it.
Honestly the first time I drove the car I was pretty disappointed because I thought it was going to ****ing throw me into the back like the 997 c4s manual I test drove a week before. That thing was naturally aspirated but holy **** it was quick. I feel like that thing would murder this car in a heartbeat.
it looks like K24s
with agency power
intercoolers, diverter valves, nhp exhaust and headers. The car has a 2.5 Sachs clutch. I really want to launch it harder but I’m not going to burn the clutch. As soon as we can double check the turbos and injectors we will know what we have. Even a 2013
carrera S with a 7 speed manual transmission 400 hp was tested at
4.3 seconds to sixty, these turbos are fast and you can only make them faster.
It’s not as fast or quick as I taught.
That yellow is awesome.
08-01-2022, 02:20 PM
#34
Rennlist Member
Completely agree, a tune and a fresh suspension will improve the car dramatically...
On the turbo lag, a stock non-S, non-tip turbo at sea level should not have significant lag. I suspect you have some boost leaks. VERY common, often the turbochargers still will make full boost just take longer to do so. Most shops do not know how to properly boost test these cars, even the dealers, so even if it has a 'fresh' service, I wouldn't be surprised if you have a bad check valve or other leaks.
Get it fully sorted before tuning, fresh plugs, fresh coils, fresh fuel filter, and a full pressurized boost leak test. Plenty of threads describing how to do that, but if you can't find them, post back up here and we will guide you to the right place.
08-02-2022, 11:31 PM
#35
Congrat's, that's quite an upgrade! And impressive spec...
Completely agree, a tune and a fresh suspension will improve the car dramatically...
On the turbo lag, a stock non-S, non-tip turbo at sea level should not have significant lag. I suspect you have some boost leaks. VERY common, often the turbochargers still will make full boost just take longer to do so. Most shops do not know how to properly boost test these cars, even the dealers, so even if it has a 'fresh' service, I wouldn't be surprised if you have a bad check valve or other leaks.
Get it fully sorted before tuning, fresh plugs, fresh coils, fresh fuel filter, and a full pressurized boost leak test. Plenty of threads describing how to do that, but if you can't find them, post back up here and we will guide you to the right place.
Completely agree, a tune and a fresh suspension will improve the car dramatically...
On the turbo lag, a stock non-S, non-tip turbo at sea level should not have significant lag. I suspect you have some boost leaks. VERY common, often the turbochargers still will make full boost just take longer to do so. Most shops do not know how to properly boost test these cars, even the dealers, so even if it has a 'fresh' service, I wouldn't be surprised if you have a bad check valve or other leaks.
Get it fully sorted before tuning, fresh plugs, fresh coils, fresh fuel filter, and a full pressurized boost leak test. Plenty of threads describing how to do that, but if you can't find them, post back up here and we will guide you to the right place.
08-03-2022, 12:15 PM
#36
I've never had any wheelspin on mine even after Europipe exhaust and Markski tune hitting 1.3bar peak and then retreats to 1.1 on k16 turbos just like what you have. I assume decent tires and with awd working you wouldn't have any.
I would love an LSD but don't think it would be noticeable on the street unless you converted to 2wd and then you can end up facing the wrong direction if you are not careful.
I have found the stock assisted clutch difficult to modulate as well, 25 years driving only manuals, tempted to do GT2 conversion but also not looking forward to a super heavy clutch. Need to try one out and see how much stiffer the clutch becomes.
I don't find first gear to be very rewarding to push hard, once you are moving though every other gear is fantastic.
Thinking about a numeric shifter and cables to improve shifting feel.
I would love an LSD but don't think it would be noticeable on the street unless you converted to 2wd and then you can end up facing the wrong direction if you are not careful.
I have found the stock assisted clutch difficult to modulate as well, 25 years driving only manuals, tempted to do GT2 conversion but also not looking forward to a super heavy clutch. Need to try one out and see how much stiffer the clutch becomes.
I don't find first gear to be very rewarding to push hard, once you are moving though every other gear is fantastic.
Thinking about a numeric shifter and cables to improve shifting feel.
08-03-2022, 01:07 PM
#38
Are you talking about with viscous coupling, awd is going to minimize but not prevent wheelspin as the front wheels are only engaged at 5% when starting out unless there is wheel spin which will then transfer more power to the front?
Rear-engined also helps with minimizing wheel spin with the majority of the weight being in the back and weight transfer from launching again going to the rear.
Or are you saying lack of enough power is what is preventing wheel spin lol?
Rear-engined also helps with minimizing wheel spin with the majority of the weight being in the back and weight transfer from launching again going to the rear.
Or are you saying lack of enough power is what is preventing wheel spin lol?
08-03-2022, 01:23 PM
#40
Rennlist Member
There's too much tire and weight in the back of these cars to spin the tires much, they have too much traction. When I first got my car and it had ten year old tires on it I could spin them pretty easily (and get a ton of wheel hop). With newer tires, I can't get more than a small chirp out of them even when drag racing and with my front diff turned off (you can't run yours off, my car has a non-996 all wheel drive system).
08-03-2022, 01:26 PM
#41
RL Community Team
Rennlist Member
Rennlist Member
Are you talking about with viscous coupling, awd is going to minimize but not prevent wheelspin as the front wheels are only engaged at 5% when starting out unless there is wheel spin which will then transfer more power to the front?
Rear-engined also helps with minimizing wheel spin with the majority of the weight being in the back and weight transfer from launching again going to the rear.
Or are you saying lack of enough power is what is preventing wheel spin lol?
Rear-engined also helps with minimizing wheel spin with the majority of the weight being in the back and weight transfer from launching again going to the rear.
Or are you saying lack of enough power is what is preventing wheel spin lol?
The great launch/acceleration traction is almost all about all of the weight over the rear wheels during acceleration (dynamic weight distribution.)
08-03-2022, 01:56 PM
#42
if you guys aren't spinning tires (assuming PSM isn't just having a workout) then you aren't even making stock power, check for boost leaks...
08-03-2022, 04:45 PM
#43
Rennlist Member
I don't think that 'wheelspin' is the best metric for judging if a Turbo is fully sorted, I never launch mine like that.
But @YellowBoxster951 mentioned several times that his car felt laggy, had whistling noises, and felt 'tired', so to me it absolutely sounds like a boost leak. And if burnouts are his goal, that will need to be sorted, AWD and boosted clutch hydraulics aside....
But @YellowBoxster951 mentioned several times that his car felt laggy, had whistling noises, and felt 'tired', so to me it absolutely sounds like a boost leak. And if burnouts are his goal, that will need to be sorted, AWD and boosted clutch hydraulics aside....
Last edited by pfbz; 08-03-2022 at 04:47 PM.
08-03-2022, 04:47 PM
#44
No "launch" needed...rolling in first gear and hit the throttle=loss of traction.. with a tune/exhaust traction issues into 2nd/3rd