Boost/Burn Questions
Boost/Burn Questions
Here's the rundown. The following is under "enthusiastic" driving conditions.
My usual drving method is tach up to 2000RPM, feather the clutch, the WOT through first, NLS into 2nd, then WOT...repeat through the gear spectrum.
My first question is how should an LNF boost? In 2,3,4, and 5 I am boosting 10 PSI at 3K, then 12-14 at 4500, then 15-17 at 5500. But in first I only hit 10-12 MAX and thats only after 5500 RPM. The gauge doesnt even register any boost until about 3k RPM, then SLOWLY raises to 10PSI, and peaks to 12 before I shift into 2nd at 12PSI. I'm reading that some stock lnf's are boosting the same MAX PSI through ALL gears. IS boost limited in first, or is my car just being bitchy? Conditions are 400FT elevation and 65 degrees F.
Second questions is a weird one. I'm at a stop light about 1 am this past saturday. I'm testing some open road launching. SO I time the light perfect but not my foot. I hit 4K RPM while I'm dropping the clutch. I spin through 1st, and then second gear....NO PULL. My tach hits 6K all the way through second, but I don't feel any pull at all. I try to shift to 3rd and bail out of it, I hit 3rd with the needle pegging 6, and then I hit 3rd, and it finally lets go, and I slow it down. Then the god awful smell. NO smoke. I thought it could have been my clutch, but it didnt smell exactly like a clutch burning. The smell lingers for a day or two, now its gone. I do a few different clutch tests, and it holds/stalls perfectly. Now I always rev match while driving at around 1500K RPM, and always shift it like an old lady. With with me shifting so slow, could I have glazed the clutch, and when I actually went for a WOT launch, I burned it some?
Any explanations on either of these?
My usual drving method is tach up to 2000RPM, feather the clutch, the WOT through first, NLS into 2nd, then WOT...repeat through the gear spectrum.
My first question is how should an LNF boost? In 2,3,4, and 5 I am boosting 10 PSI at 3K, then 12-14 at 4500, then 15-17 at 5500. But in first I only hit 10-12 MAX and thats only after 5500 RPM. The gauge doesnt even register any boost until about 3k RPM, then SLOWLY raises to 10PSI, and peaks to 12 before I shift into 2nd at 12PSI. I'm reading that some stock lnf's are boosting the same MAX PSI through ALL gears. IS boost limited in first, or is my car just being bitchy? Conditions are 400FT elevation and 65 degrees F.
Second questions is a weird one. I'm at a stop light about 1 am this past saturday. I'm testing some open road launching. SO I time the light perfect but not my foot. I hit 4K RPM while I'm dropping the clutch. I spin through 1st, and then second gear....NO PULL. My tach hits 6K all the way through second, but I don't feel any pull at all. I try to shift to 3rd and bail out of it, I hit 3rd with the needle pegging 6, and then I hit 3rd, and it finally lets go, and I slow it down. Then the god awful smell. NO smoke. I thought it could have been my clutch, but it didnt smell exactly like a clutch burning. The smell lingers for a day or two, now its gone. I do a few different clutch tests, and it holds/stalls perfectly. Now I always rev match while driving at around 1500K RPM, and always shift it like an old lady. With with me shifting so slow, could I have glazed the clutch, and when I actually went for a WOT launch, I burned it some?
Any explanations on either of these?
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From: Maple Syrup Land
Here's the rundown. The following is under "enthusiastic" driving conditions.
My usual drving method is tach up to 2000RPM, feather the clutch, the WOT through first, NLS into 2nd, then WOT...repeat through the gear spectrum.
My first question is how should an LNF boost? In 2,3,4, and 5 I am boosting 10 PSI at 3K, then 12-14 at 4500, then 15-17 at 5500. But in first I only hit 10-12 MAX and thats only after 5500 RPM. The gauge doesnt even register any boost until about 3k RPM, then SLOWLY raises to 10PSI, and peaks to 12 before I shift into 2nd at 12PSI. I'm reading that some stock lnf's are boosting the same MAX PSI through ALL gears. IS boost limited in first, or is my car just being bitchy? Conditions are 400FT elevation and 65 degrees F.
Second questions is a weird one. I'm at a stop light about 1 am this past saturday. I'm testing some open road launching. SO I time the light perfect but not my foot. I hit 4K RPM while I'm dropping the clutch. I spin through 1st, and then second gear....NO PULL. My tach hits 6K all the way through second, but I don't feel any pull at all. I try to shift to 3rd and bail out of it, I hit 3rd with the needle pegging 6, and then I hit 3rd, and it finally lets go, and I slow it down. Then the god awful smell. NO smoke. I thought it could have been my clutch, but it didnt smell exactly like a clutch burning. The smell lingers for a day or two, now its gone. I do a few different clutch tests, and it holds/stalls perfectly. Now I always rev match while driving at around 1500K RPM, and always shift it like an old lady. With with me shifting so slow, could I have glazed the clutch, and when I actually went for a WOT launch, I burned it some?
Any explanations on either of these?
My usual drving method is tach up to 2000RPM, feather the clutch, the WOT through first, NLS into 2nd, then WOT...repeat through the gear spectrum.
My first question is how should an LNF boost? In 2,3,4, and 5 I am boosting 10 PSI at 3K, then 12-14 at 4500, then 15-17 at 5500. But in first I only hit 10-12 MAX and thats only after 5500 RPM. The gauge doesnt even register any boost until about 3k RPM, then SLOWLY raises to 10PSI, and peaks to 12 before I shift into 2nd at 12PSI. I'm reading that some stock lnf's are boosting the same MAX PSI through ALL gears. IS boost limited in first, or is my car just being bitchy? Conditions are 400FT elevation and 65 degrees F.
Second questions is a weird one. I'm at a stop light about 1 am this past saturday. I'm testing some open road launching. SO I time the light perfect but not my foot. I hit 4K RPM while I'm dropping the clutch. I spin through 1st, and then second gear....NO PULL. My tach hits 6K all the way through second, but I don't feel any pull at all. I try to shift to 3rd and bail out of it, I hit 3rd with the needle pegging 6, and then I hit 3rd, and it finally lets go, and I slow it down. Then the god awful smell. NO smoke. I thought it could have been my clutch, but it didnt smell exactly like a clutch burning. The smell lingers for a day or two, now its gone. I do a few different clutch tests, and it holds/stalls perfectly. Now I always rev match while driving at around 1500K RPM, and always shift it like an old lady. With with me shifting so slow, could I have glazed the clutch, and when I actually went for a WOT launch, I burned it some?
Any explanations on either of these?
'm assuming your car is stock?
Is this your first manual car?
How many miles?
wow umm when the car does not go anywhere with the gas pedal pegged you are doing it wrong.
don't trash your car like that if you know somethings a miss just let off the gas and calm down before you go breaking your car. its not a punch it and go ordeal get a driver mod.
also dropping the clutch from 4k is a no no. you need to let off of it slower but our cars suck for traction in first so its pointless to drop it like that anyways.
on the street I usually launch around 2.5k and only put about 80 percent throttle down in first anything more and it just spins.
Look at it this way if you have to trash your car to beat the guy next to you then you lose either way. leave the abuse for track times that way you get something out of it.
don't trash your car like that if you know somethings a miss just let off the gas and calm down before you go breaking your car. its not a punch it and go ordeal get a driver mod.
also dropping the clutch from 4k is a no no. you need to let off of it slower but our cars suck for traction in first so its pointless to drop it like that anyways.
on the street I usually launch around 2.5k and only put about 80 percent throttle down in first anything more and it just spins.
Look at it this way if you have to trash your car to beat the guy next to you then you lose either way. leave the abuse for track times that way you get something out of it.
Clutch is not slipping. From 4th gear at a dead stop, I stall instantly. On an incline 4 or 5th stalls me out. From WOT my revs drop instantly when I ****, no raised RPM. If clutch was slipping, any of these "tests" would show it. Been driving stick for 10 yrs now. This is my 4th manual. I even had GM check it out, they found nothing wrong. I'm lost on this. It didnt smell like a clutch burning. Trust me once you smell a burnt clutch you don't forget it. My mechanic agreed with me. I havent had a problem since saturday, and I have been pulling hard for the past 5 days. Put about 300 miles on it, and I guarantee about 200 were "fun".
As far as boost goes, I figured this is normal, but first is killing me.
As far as boost goes, I figured this is normal, but first is killing me.
ya 1st gear gets lower boost so u dont get as bad torgue stear and spinning. thats the way its supposed to be. i heard second was boost controled to but not from what i notice. and that slowly creaping up to 10 psi, is ur turbo spooling up, but mine isnt that slow it goes pretty fast when i stomp it, unless im in to high a gear and stomp it at low rpms. lol
how about u ease up on that thing till u have it broken in so u dont break it before its broken in.
how about u ease up on that thing till u have it broken in so u dont break it before its broken in.
Last edited by tomj77; Apr 16, 2009 at 07:21 PM. Reason: Automerged Doublepost
wow umm when the car does not go anywhere with the gas pedal pegged you are doing it wrong.
don't trash your car like that if you know somethings a miss just let off the gas and calm down before you go breaking your car. its not a punch it and go ordeal get a driver mod.
also dropping the clutch from 4k is a no no. you need to let off of it slower but our cars suck for traction in first so its pointless to drop it like that anyways.
on the street I usually launch around 2.5k and only put about 80 percent throttle down in first anything more and it just spins.
Look at it this way if you have to trash your car to beat the guy next to you then you lose either way. leave the abuse for track times that way you get something out of it.
don't trash your car like that if you know somethings a miss just let off the gas and calm down before you go breaking your car. its not a punch it and go ordeal get a driver mod.
also dropping the clutch from 4k is a no no. you need to let off of it slower but our cars suck for traction in first so its pointless to drop it like that anyways.
on the street I usually launch around 2.5k and only put about 80 percent throttle down in first anything more and it just spins.
Look at it this way if you have to trash your car to beat the guy next to you then you lose either way. leave the abuse for track times that way you get something out of it.
The only conclusion I can draw from this is either A. Limp Mode, B. Possible leak, although I cant find any. C. Faulty slave cylinder, or bubble in it. D. Glazed clutch E.Something Else?
This WAS not driver error, nor weak clutch. Again, I never launch it, I always rev match, rarely NLS, never clutch ride, etc.
Not to be a dick, but seriously bro...learn to read someones post before you start sending the signals to your fingers to type.
Now I guess boost question is answered, but any ideas about saturday?
Last edited by steven6870; Apr 16, 2009 at 07:46 PM.
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