|
What hot hatch do you own? This poll is closed. |
|||
|---|---|---|---|
| Golf GTI / R / R32 |
|
196 | 0.02% |
| Impreza WRX / STi |
|
133 | 0.01% |
| Mazdaspeed 3 |
|
92 | 0.01% |
| Veloster Turbo |
|
20 | 0.00% |
| Focus ST |
|
149 | 0.01% |
| Other Hot Hatch |
|
230 | 0.02% |
| Elantra GT |
|
1000001 | 99.92% |
| Total: | 1000821 votes | ||
|
Rhyno posted:I bought a house today so uh, not yet. HELOC your deposit out of it! (Don't)
|
#
?
Nov 21, 2018 20:53
|
|
|
|
| # ? May 15, 2024 21:26 |
|
|
Rhyno posted:I bought a house today so uh, not yet. Tell the bank to give you a double mortgage, problem solved. The rates might be better to boot.
|
|
#
?
Nov 22, 2018 00:15
|
|
|
Welp, the turbo blew out on my '18 Civic Si - usually pulling 17-20psi of boost pressure, now the boost gauge keeps fluttering and wont go over 11psi. I pulled on to the highway, floored it in 6th as a test and my rpm's actually dropped and it struggled to go over 67mph. Car is bone stock. Sucks because I need to drive about 500 miles this weekend. Oh well if it fully explodes its under warranty I guess. I wonder what the hell happened... I only have about 6k miles on it.
|
|
#
?
Nov 22, 2018 14:39
|
|
|
Check all your pipes before blaming it on the turbo, could be a pipe pop off. It could be a much easier fix than turbo replacement.
|
|
#
?
Nov 22, 2018 14:55
|
|
|
Yeah hopefully just some plumbing, going to bring it to the dealer as soon as I can.
|
|
#
?
Nov 22, 2018 15:10
|
|
|
Maybe I still have PTSD from United, but flying Delta domestic as Platinum gets me upgraded 99% of the time and they treat me great. I've even been upgraded to first on flights to Mexico and stuff where you get real food on real plates with metal silverware. I nearly cried.
|
|
#
?
Nov 22, 2018 15:17
|
|
|
KillHour posted:Maybe I still have PTSD from United, but flying Delta domestic as Platinum gets me upgraded 99% of the time and they treat me great. Wrong tab mang, that goes to the business travel thread.
|
|
#
?
Nov 22, 2018 16:13
|
|
|
oooh where is that
|
|
#
?
Nov 22, 2018 16:54
|
|
|
sneakyfrog posted:oooh where is that https://forums.somethingawful.com/showthread.php?threadid=3516448
|
|
#
?
Nov 22, 2018 17:00
|
|
|
thanks pal
|
|
#
?
Nov 22, 2018 17:01
|
|
|
Midjack posted:Wrong tab mang, that goes to the business travel thread. Ah poo poo. Not sure how I did that since I posted from the app?
|
|
#
?
Nov 22, 2018 17:18
|
|
|
Voltage posted:Welp, the turbo blew out on my '18 Civic Si - usually pulling 17-20psi of boost pressure, now the boost gauge keeps fluttering and wont go over 11psi. I pulled on to the highway, floored it in 6th as a test and my rpm's actually dropped and it struggled to go over 67mph. Car is bone stock. Sucks because I need to drive about 500 miles this weekend. Oh well if it fully explodes its under warranty I guess. I wonder what the hell happened... I only have about 6k miles on it. you're supposed to be in the correct gear for that kinda poo poo dude
|
|
#
?
Nov 22, 2018 17:19
|
|
|
Voltage posted:turbo blew out on my '18 Civic Si... floored it in 6th 
|
|
#
?
Nov 22, 2018 17:23
|
|
|
I got up to 6th at highway speeds and just hit the gas going about 55 and it struggled to get even to 70. It usually pulls very strong even in 6th. Must be something loose or the ecu is doing something funny in the cold. I guess this only started happening once it got very cold out, but i would imagine id feel MORE power in the cold...
|
|
#
?
Nov 22, 2018 17:41
|
|
|
The "joke" is that doing that in a turbo car is BAD for your engine.
|
|
#
?
Nov 22, 2018 18:02
|
|
|
Yeah, always be downshifting when you want to power on like that. Google engine lugging for a better explanation than I could give.
a mysterious cloak fucked around with this message at 19:06 on Nov 22, 2018 |
|
#
?
Nov 22, 2018 19:00
|
|
|
Is it completely stock?
|
|
#
?
Nov 22, 2018 19:03
|
|
|
Yup bone stock, haven't touched a thing, and I won't until the warranty is up - I would be making GBS threads myself if this happened and I had done mods. This is basically my 'brand new always will work don't gently caress with it' car. How could doing a 6th gear pull at 55mph possibly be even remotely, 1% bad for a brand new car? It just builds the boost a bit slower and I would normally downshift if I really needed to get on it. My last 2 cars were turbos and I had absolutely zero issues with power.
|
|
#
?
Nov 22, 2018 19:08
|
|
|
It's fine, it's not like you mashed it at 10mph in 3rd, the civic is geared short so 6th at 55 isn't like 1.5k building full boost
BlackMK4 fucked around with this message at 19:25 on Nov 22, 2018 |
|
#
?
Nov 22, 2018 19:21
|
|
|
Even then, it's got an electronic throttle, boost control, and a contemporary ECU. No combination of throttle input, engine rpm, and external load should ever result in engine damage. It's all in control by the ECU which should be assessing the current conditions and driver input and modulating the throttle to ensure the engine operates within a safe operating envelope. This is speculation but a modem car should be capable of handling a complete moron at the controls without damaging itself, barring things that aren't under its control (i.e. Clutch operation on a manual)
|
|
#
?
Nov 22, 2018 19:46
|
|
|
Bajaha posted:Even then, it's got an electronic throttle, boost control, and a contemporary ECU. No combination of throttle input, engine rpm, and external load should ever result in engine damage. It's all in control by the ECU which should be assessing the current conditions and driver input and modulating the throttle to ensure the engine operates within a safe operating envelope. Tell that to Focus ST owners. People are blowing motors from LSPI even stock.
|
|
#
?
Nov 22, 2018 21:16
|
|
|
Is Ford at least covering those under warranty? LSPI should be something that the ecu can protect against as it has control of the throttle, my guess is it's not programmed to prevent LSPI. All I'm really saying is that the capability is there although likely not implemented. An engine speed limiter / red line would be a good comparison for this, prior to their widespread implementing if you pegged the throttle full open while the engine was decoupled from the drivetrain you'd likely over rev the engine and internals would become externals. It's technically the operators fault for putting the engine in that situation but a rev limiter means you can do the same improper control inputs without destroying your engine.
|
|
#
?
Nov 22, 2018 22:16
|
|
|
It's not that simple. LSPI isn't 100% predictable because it depends on how fast you actually accelerate. The only way to totally remove the possibility in most manual turbo cars is for the engine to not build boost pressure under 2k RPM. Cars that know what gear you're in and could potentially say "whoa there, no power for you until you downshift," but how many manual cars have the sensors to do that when the clutch is in? My RS doesn't. What would be fine in second at 1500 could cause your engine to turn inside out in sixth at 1500. Edit: read this https://www.motor.com/magazine-summary/resolving-low-speed-pre-ignition/ KillHour fucked around with this message at 04:42 on Nov 23, 2018 |
|
#
?
Nov 23, 2018 04:39
|
|
|
Your RS doesn't have boost by gear? Even the FiST did. e: What I am getting at is that the thing knows what gear you are in, requests a certain amount of torque, then varies boost/ignition/fueling based on how it is responding. BlackMK4 fucked around with this message at 04:47 on Nov 23, 2018 |
|
#
?
Nov 23, 2018 04:43
|
|
|
BlackMK4 posted:Your RS doesn't have boost by gear? Even the FiST did. It knows what gear you're in by comparing the speed of the input and output shafts. It doesn't have a sensor that monitors the position of the shifter (if it did, it would know you were in neutral without pressing the clutch, and it does not). But in any case, it will let you lug the engine in 6th if you put your foot down, which means that LSPI is 100% possible. Manufacturers still don't know exactly what causes it except lots of torque down low and that what oil and gas you use affects it. KillHour fucked around with this message at 04:57 on Nov 23, 2018 |
|
#
?
Nov 23, 2018 04:53
|
|
|
I think we're in agreement here now, getting an engine to operate at high torque below 2000rpm is when LSPI occurs, and the simple solution is to simply severely limiting the available torque during that operation (and as pointed out modern cars can figure out which gear they're in without much trouble). But the simple solution is not really a solution since sacrificing performance in that region defeats one of the main reasons for going to smaller turbocharged engines in the first place. Leaving only the more complicated approaches of solving this issue by looking at engine design, oil formulation, and fuel formulation as the article you linked stated. So yeah... Planting your foot down in a high gear at low rpm in a turbo car is bad juju. Civic guy -  your engine (it's probably just a popped off hose though, no CEL is odd if that were the case, does the engine sound noticeably different now?)
|
|
#
?
Nov 23, 2018 05:48
|
|
|
The FiST gets around being a dick in 6th quite elegantly with really short gears. I'm spinning around 2700 while going 60. Would I stomp it from there? God no. Could I safely? Possibly? Maybe? I'm not dumb enough to try? It feels like a problem to be solved with materials, since the vast majority of people aren't going to educate themselves or change.
|
|
#
?
Nov 23, 2018 06:02
|
|
|
Torque curves before and after a tune make it look like they actually are reducing output at lower rpm intentionally on the FiST. I dunno if it’s to prevent LSPI but seems plausible.
|
|
#
?
Nov 23, 2018 06:43
|
|
|
Yeah, I noticed that on the RS, too. Most aftermarket tunes I've seen don't increase the top-end HP all that much, but add a poo poo ton of torque down low. Ford pretty obviously left quite a bit of performance on the table and I don't think it's because they thought it was already fast enough. Then again, I don't think I've heard of an RS blowing up on a stage 1 tune. They're pretty overbuilt.
|
|
#
?
Nov 23, 2018 06:57
|
|
|
I doubt it's LSPI since the engine itself sounds fine, there's no CEL, and it drives fine up until full throttle in any gear. If I drive like a grandma you wouldn't notice anything is wrong, but once you go WOT in any gear it bogs down super hard and even drops revs. Very uncomfortable feeling especially when merging onto the highway. Butt dyno feels like a ~50hp loss or so. Either way I have a service appointment on Monday, hopefully just a loose hose...
|
|
#
?
Nov 23, 2018 14:28
|
|
|
Voltage posted:I doubt it's LSPI since the engine itself sounds fine, there's no CEL, and it drives fine up until full throttle in any gear. If I drive like a grandma you wouldn't notice anything is wrong, but once you go WOT in any gear it bogs down super hard and even drops revs. Very uncomfortable feeling especially when merging onto the highway. Butt dyno feels like a ~50hp loss or so. Does it build boost at all?
|
|
#
?
Nov 23, 2018 17:37
|
|
|
Sorry, I wasn't suggesting it was LSPI causing your issue. I was saying that it's a bad idea to do high gear pulls in general, even to test.
|
|
#
?
Nov 23, 2018 17:53
|
|
|
It builds boost but once it hits max boost (about 11psi, normally 17+) the meter flutters and it drops revs a bit, significant reduction in power, same thing in every gear.
|
|
#
?
Nov 23, 2018 19:14
|
|
|
Voltage posted:It builds boost but once it hits max boost (about 11psi, normally 17+) the meter flutters and it drops revs a bit, significant reduction in power, same thing in every gear. Sounds like it could be running on just wastegate spring, maybe the actuator/gate is bad.
|
|
#
?
Nov 24, 2018 00:08
|
|
|
agreed with the above
|
|
#
?
Nov 24, 2018 01:05
|
|
|
Sat in a 2019 Veloster today. The interior feels great, but god drat the rear window is small as hell. Feels like I would have to heavily lean on the rear camera due to poor visibility. *edit* Hell, almost every hatchback aside from the 500 Abarth and the Fiesta ST/ST Line had that poor rear viz issue. Bentai fucked around with this message at 06:16 on Nov 24, 2018 |
|
#
?
Nov 24, 2018 04:20
|
|
|
Bentai posted:Sat in a 2019 Veloster today. The interior feels great, but god drat the rear window is small as hell. Feels like I would have to heavily lean on the rear camera due to poor visibility. Assuming you didn't forget the word "hot" in here, the Fit isn't bad for rear vis. Though I've read about people swapping turbo'd engines into Fits and it sounds like a hoot.
|
|
#
?
Nov 24, 2018 22:11
|
|
|
You can buy a turn-key K24 Fit from TCS
|
|
#
?
Nov 24, 2018 23:47
|
|
|
BlackMK4 posted:You can buy a turn-key K24 Fit from TCS gonna need a link for this.
|
|
#
?
Nov 25, 2018 00:19
|
|
|
|
| # ? May 15, 2024 21:26 |
|
|
fknlo posted:gonna need a link for this. Was interested myself and saw this https://www.roadandtrack.com/car-culture/a22697519/honda-fit-engine-swap/
|
|
#
?
Nov 25, 2018 00:49
|
|
