HARROP TVS, What You Need To Know & FAQ
07-01-2010, 04:18 PM
#228
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What's better, more airflow, or more timing?
Damn E85 UN-availability!
07-01-2010, 05:19 PM
#232
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Anyone have any insight into my 2.8" pulley problem? The TVS is showing me it sucks without some serious octane for timing... I still love it though.
Here's my thread on hpt forums if anyone can help! http://www.hptuners.com/forum/showthread.php?t=30128
07-01-2010, 05:33 PM
#233
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I know it's possible, but I believe he was asking about stock exhaust. The manifold and downpipe are the largest restriction (as is the head). Exhaust gases slow as they cool, so a small restriction towards the end won't cause as much of a problem as a bottleneck right against the head will. The full 3" exhaust really helps top end power.
Anyone have any insight into my 2.8" pulley problem? The TVS is showing me it sucks without some serious octane for timing... I still love it though.
Here's my thread on hpt forums if anyone can help! http://www.hptuners.com/forum/showthread.php?t=30128
Anyone have any insight into my 2.8" pulley problem? The TVS is showing me it sucks without some serious octane for timing... I still love it though.
Here's my thread on hpt forums if anyone can help! http://www.hptuners.com/forum/showthread.php?t=30128
07-01-2010, 11:37 PM
#234
I know it's possible, but I believe he was asking about stock exhaust. The manifold and downpipe are the largest restriction (as is the head). Exhaust gases slow as they cool, so a small restriction towards the end won't cause as much of a problem as a bottleneck right against the head will. The full 3" exhaust really helps top end power.
Anyone have any insight into my 2.8" pulley problem? The TVS is showing me it sucks without some serious octane for timing... I still love it though.
Here's my thread on hpt forums if anyone can help! http://www.hptuners.com/forum/showthread.php?t=30128
Anyone have any insight into my 2.8" pulley problem? The TVS is showing me it sucks without some serious octane for timing... I still love it though.
Here's my thread on hpt forums if anyone can help! http://www.hptuners.com/forum/showthread.php?t=30128
07-02-2010, 12:13 AM
#235
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^^ I'm running BKR7E's gapped to about ~.32
I got the P0300 Random Cylinder Misfire twice tonight while tuning and logging. I usually get that code once every week or so.
I swapped back to the stock 80mm TVS pulley and I was able to run 15* of timing.
My plugs have less than 1000 miles on them, but when I pulled them they were white around the base of the plug (where the socket goes to unscrew them), and they had some carbon on the based of the metal around the ceramic. I cleaned them with brake cleaner and threw them back in.
I have the BKR8EIX Iridium plugs too, I could make try those plugs too since they're 2 step colder. Not sure how well they'll work though considering the coppers are better for boost.
Any advice..? I'm trying to get my TVS running right, and it's being a PITA!
I got the P0300 Random Cylinder Misfire twice tonight while tuning and logging. I usually get that code once every week or so.
I swapped back to the stock 80mm TVS pulley and I was able to run 15* of timing.
My plugs have less than 1000 miles on them, but when I pulled them they were white around the base of the plug (where the socket goes to unscrew them), and they had some carbon on the based of the metal around the ceramic. I cleaned them with brake cleaner and threw them back in.
I have the BKR8EIX Iridium plugs too, I could make try those plugs too since they're 2 step colder. Not sure how well they'll work though considering the coppers are better for boost.
Any advice..? I'm trying to get my TVS running right, and it's being a PITA!
07-02-2010, 12:31 AM
#236
^^ I'm running BKR7E's gapped to about ~.32
I got the P0300 Random Cylinder Misfire twice tonight while tuning and logging. I usually get that code once every week or so.
I swapped back to the stock 80mm TVS pulley and I was able to run 15* of timing.
My plugs have less than 1000 miles on them, but when I pulled them they were white around the base of the plug (where the socket goes to unscrew them), and they had some carbon on the based of the metal around the ceramic. I cleaned them with brake cleaner and threw them back in.
I have the BKR8EIX Iridium plugs too, I could make try those plugs too since they're 2 step colder. Not sure how well they'll work though considering the coppers are better for boost.
Any advice..? I'm trying to get my TVS running right, and it's being a PITA!
I got the P0300 Random Cylinder Misfire twice tonight while tuning and logging. I usually get that code once every week or so.
I swapped back to the stock 80mm TVS pulley and I was able to run 15* of timing.
My plugs have less than 1000 miles on them, but when I pulled them they were white around the base of the plug (where the socket goes to unscrew them), and they had some carbon on the based of the metal around the ceramic. I cleaned them with brake cleaner and threw them back in.
I have the BKR8EIX Iridium plugs too, I could make try those plugs too since they're 2 step colder. Not sure how well they'll work though considering the coppers are better for boost.
Any advice..? I'm trying to get my TVS running right, and it's being a PITA!
plug chart
http://www.mudinmyblood.net/forum/im...park_plugs.jpg
07-02-2010, 08:50 AM
#238
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That's what I'd like to know... 
I can't run **** for timing without knock on 93, and I'm getting some P0300 misfires. Any suggestions would be appreciated!
Also does anyone know anything about the 'VE Maximum' table under Engine>Airflow>Dynamic Airflow in HP Tuners 2.23 BETA. It appears this table can be zero'd out if you aren't using VE and are running MAF only, but I'm not sure. This might help some fueling issues where the PCM tries to use a VE table that isn't accurate.
I can't run **** for timing without knock on 93, and I'm getting some P0300 misfires. Any suggestions would be appreciated!
Also does anyone know anything about the 'VE Maximum' table under Engine>Airflow>Dynamic Airflow in HP Tuners 2.23 BETA. It appears this table can be zero'd out if you aren't using VE and are running MAF only, but I'm not sure. This might help some fueling issues where the PCM tries to use a VE table that isn't accurate.
07-02-2010, 08:55 AM
#239
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I was able to get 17* out of pump gas. Started running meth shortly there after and was able to hold 25.5*.
I also had the p0300 from time to time. Nothing ever got rid of it. I played with plug gaps and was able to reduce the misfire but not eliminate it. They're a pain in the ass with bigger injectors. But if you're not misfiring under throttle I wouldn't worry about it.
My TVS car ran just like a factory car though. partial throttle all the way to WOT.
I also had the p0300 from time to time. Nothing ever got rid of it. I played with plug gaps and was able to reduce the misfire but not eliminate it. They're a pain in the ass with bigger injectors. But if you're not misfiring under throttle I wouldn't worry about it.
My TVS car ran just like a factory car though. partial throttle all the way to WOT.
07-02-2010, 09:09 AM
#240
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Well that sounds good, I wish I had the same luck...
Stupid question of the day... Is it 'OK' to run the TVS 80m pulley with a GM Stage 2 belt? I used the S2 belt on my 2.8" TVS pulley, and I swapped back to stock 80mm pulley last night. The pulley fit but just barely, and the tensioner is definitely towards the bottom of its travel. Is this safe, or am I stressing the tensioner and/or putting too much pressure on the pulleys?
Stupid question of the day... Is it 'OK' to run the TVS 80m pulley with a GM Stage 2 belt? I used the S2 belt on my 2.8" TVS pulley, and I swapped back to stock 80mm pulley last night. The pulley fit but just barely, and the tensioner is definitely towards the bottom of its travel. Is this safe, or am I stressing the tensioner and/or putting too much pressure on the pulleys?
07-02-2010, 09:27 AM
#241
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Well that sounds good, I wish I had the same luck...
Stupid question of the day... Is it 'OK' to run the TVS 80m pulley with a GM Stage 2 belt? I used the S2 belt on my 2.8" TVS pulley, and I swapped back to stock 80mm pulley last night. The pulley fit but just barely, and the tensioner is definitely towards the bottom of its travel. Is this safe, or am I stressing the tensioner and/or putting too much pressure on the pulleys?
Stupid question of the day... Is it 'OK' to run the TVS 80m pulley with a GM Stage 2 belt? I used the S2 belt on my 2.8" TVS pulley, and I swapped back to stock 80mm pulley last night. The pulley fit but just barely, and the tensioner is definitely towards the bottom of its travel. Is this safe, or am I stressing the tensioner and/or putting too much pressure on the pulleys?
07-02-2010, 09:37 AM
#242
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^ Great!
Now I need to get this tune dialed in...
OK.. So meth. Is it as simple as leaning out your PE modifier AFR a bit and running some more timing top end? Seems like suchhh a hassle for a daily driver.
Advice on meth kits? Progressive needed? The trunk kits are so much more expensive it doesn't seem worthwhile. I'll entertain the notion of meth though, but likely won't go there.
Now I need to get this tune dialed in...
OK.. So meth. Is it as simple as leaning out your PE modifier AFR a bit and running some more timing top end? Seems like suchhh a hassle for a daily driver.
Advice on meth kits? Progressive needed? The trunk kits are so much more expensive it doesn't seem worthwhile. I'll entertain the notion of meth though, but likely won't go there.
07-02-2010, 09:45 AM
#244
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Price for both please.
Is the progressive harder to tune for since it doens't come on all at once? How do you know how/when to lean up your AFR since the kits are boost controlled and not RPM like the PE AFR?
07-02-2010, 10:14 AM
#246
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Changing the MAF scaling should however change the other calculations that the PCM makes for cylinder airmass and other stuff, because you are effectively lying to the PCM and telling it it's getting more air, and to inject more gas. This is bad. The MAF frequency table is a AIR table, not a FUEL table.
Maybe some expert meth tuner can chime in..?
07-06-2010, 04:27 PM
#247
justt posting so i can get to this thread easier, but i do have a question. im gonna put in my order for the kit from ottp and i also want to buy hp tuners. is there anyone one here willing to let me get or even sell me a decent tune to run with that i can load with hp tuners? i dunno if i can trust my self doing my own tunes with it yet and it seems like i can save money that way instead of taking my car to get fine tuned on a dyno for hundreds of dollars
07-06-2010, 05:06 PM
#248
justt posting so i can get to this thread easier, but i do have a question. im gonna put in my order for the kit from ottp and i also want to buy hp tuners. is there anyone one here willing to let me get or even sell me a decent tune to run with that i can load with hp tuners? i dunno if i can trust my self doing my own tunes with it yet and it seems like i can save money that way instead of taking my car to get fine tuned on a dyno for hundreds of dollars
07-06-2010, 06:01 PM
#249
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if you keep getting the p0300. you have issues. either in the tune, or mechanical. i run 14 degree's on a 2.9 pulley on 91 octane with zero issues. e85 is a different story.
if you get the fuel control wrong you will get random misfires for no reason. if you have a **** harness, or injectors. this will do it. 2step colder plugs are not needed for your level. i am right on the edge of needing them.
leak down and compression test. then go from there. it doesn't stray much from a m62 tune file. just needs more maf work to compensate for the cfm difference. and timing drop due to cylinder pressures.
if you get the fuel control wrong you will get random misfires for no reason. if you have a **** harness, or injectors. this will do it. 2step colder plugs are not needed for your level. i am right on the edge of needing them.
leak down and compression test. then go from there. it doesn't stray much from a m62 tune file. just needs more maf work to compensate for the cfm difference. and timing drop due to cylinder pressures.
07-06-2010, 06:30 PM
#250
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if you keep getting the p0300. you have issues. either in the tune, or mechanical. i run 14 degree's on a 2.9 pulley on 91 octane with zero issues. e85 is a different story.
if you get the fuel control wrong you will get random misfires for no reason. if you have a **** harness, or injectors. this will do it. 2step colder plugs are not needed for your level. i am right on the edge of needing them.
leak down and compression test. then go from there. it doesn't stray much from a m62 tune file. just needs more maf work to compensate for the cfm difference. and timing drop due to cylinder pressures.
if you get the fuel control wrong you will get random misfires for no reason. if you have a **** harness, or injectors. this will do it. 2step colder plugs are not needed for your level. i am right on the edge of needing them.
leak down and compression test. then go from there. it doesn't stray much from a m62 tune file. just needs more maf work to compensate for the cfm difference. and timing drop due to cylinder pressures.