lol yeah thats what ive been talking about this whole time. the k04-001. the bolt on k04 that only requires a new TIP. can run stock, or tune and bigger injectors. you were scaring me... i thought you ment i would have to get injectors or the ko4-001 would start messing with my engine!
You're gonna need injectors. When you add more airflow with any turbo upgrade you will NEED to add fuel to compensate.
Your car will be fueling a K03(s) and you will have much more air going in. This will lean out your A/F ratio which what puts the motor in danger. Can you get away with it? Probably, but this is what others are concerning when mentioning putting the motor at any risk.
You're gonna need injectors. When you add more airflow with any turbo upgrade you will NEED to add fuel to compensate.
Your car will be fueling a K03(s) and you will have much more air going in. This will lean out your A/F ratio which what puts the motor in danger. Can you get away with it? Probably, but this is what others are concerning when mentioning putting the motor at any risk.
the thing is, its not really a bigger turbo. i think its just the blade pitch or something that makes it more efficient.
Well, looking at the F21 or F23 to run on the APR KO4 tune. Also contacted doug at FT about the TIP they supply and how it differs from the forge poly unit I have.
Seems this setup would run ~ 240hp on the F21 and ~260hp on the F23
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Failure to prepare is preparing to fail.
I could be totally wrong on this subject but from what I have seen it seems like a lot of people use the ko4 as a stepping stone for going big turbo. It seems like everyone i know who has the k04 around me regrets going with one because regardless if you want more power your looking at supporting fuel mods, and other upgrades and only to hit a wall in power. My buddy ended up going with a gt28rs and is running around 280ponies to the wheels onlything keeping him from getting more power is the weakness of the 1.8ts rods but he seems to think he should have went that route in the beginning. So why not just invest a tad bit more money and go with a similar set up.
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Stealth, the Franken is a little more than the standard KO4, yet rod safe and good power to redline. I doubt I ever will have 350+ in this jetta. I will wait for a project car to go BT, I just want to increase power and the joy I get out of my DD. The Franken models seem to be a good smaller turbo option similar to the gt28. They will also allow me to keep with the tune I have currently, or flash up to the APR KO4 tune for a moderate tune. If I want to go more aggressive later I can swap over to uni, increase fueling, drop in rods, or other smaller mods. A true BT would require a lot more fueling, a $800+ tune, more cash for the turbo, bigger TB, manifold, etc etc etc.
In the long run I want a quick car, not a FAST car...I drive a FWD 4 banger after all :-p
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Failure to prepare is preparing to fail.
Stealth, the Franken is a little more than the standard KO4, yet rod safe and good power to redline. I doubt I ever will have 350+ in this jetta. I will wait for a project car to go BT, I just want to increase power and the joy I get out of my DD. The Franken models seem to be a good smaller turbo option similar to the gt28. They will also allow me to keep with the tune I have currently, or flash up to the APR KO4 tune for a moderate tune. If I want to go more aggressive later I can swap over to uni, increase fueling, drop in rods, or other smaller mods. A true BT would require a lot more fueling, a $800+ tune, more cash for the turbo, bigger TB, manifold, etc etc etc.
In the long run I want a quick car, not a FAST car...I drive a FWD 4 banger after all :-p
what is the total price for that frankenturbo idea you have? for the f21 /f23? and you can run frankentrubos with stock tunes?
what is the total price for that frankenturbo idea you have? for the f21 /f23? and you can run frankentrubos with stock tunes?
I have an fully loaded APR stage 2 right now, not stock so it can run the F21 as is from what I read. The APR KO4 tune is a bit of loot to reflash all 4 programs tb adapt/fault code erase etc, but it is a mild tune to push a little better fuel mix and A/F ratios sound proper. I read uni has a great and aggressive tune for the FTs but if I can keep it mild and add later it is better for my budget currently as I have way too many parts sitting waiting for refurb or paint to drop 3k on a BT right now.
Stealth, one day I will have balls out power and a BT that will snap heads back I hope, just can't see this MKIV being the medium I will do it in.
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Failure to prepare is preparing to fail.
In the long run I want a quick car, not a FAST car...I drive a FWD 4 banger after all :-p
This is key right here. It's all about what you want and the power delivery. I daily my car where I can't go over 65mph usually so getting the tq/hp right away is much more useable than waiting till 4-5k rpm for a little more up top (or for just bragging rights that don't mean shit)
Most people don't realize that the f23 is pretty much in "BT" territory as far as air flow goes. It's only limited to the supporting mods you have and it sure makes JB 50trims blush on a road course.
people that bolt on a K04-001 and wish they had more power because it really isn't an upgrade over a K03s and fail to realize that the turbos are nearly the same. Usually due to lack of fueling.
Lastly, One must consider our FWD platform. Most big turbos (gt dual bb series) will just spin thru lower gears and even 3/4th on the highway at speed. Not very useable on the daily IMO. Even at 18psi on my f23 with an un tweaked file and a spec stg3+ clutch I rip thru 2nd gear spinning tires.
But let's get real. If you want a useable 300+ tq/hp power plant you need Haldex/Quattro or at least an LSD...end rant haha
This is key right here. It's all about what you want and the power delivery. I daily my car where I can't go over 65mph usually so getting the tq/hp right away is much more useable than waiting till 4-5k rpm for a little more up top (or for just bragging rights that don't mean shit)
Most people don't realize that the f23 is pretty much in "BT" territory as far as air flow goes. It's only limited to the supporting mods you have and it sure makes JB 50trims blush on a road course.
people that bolt on a K04-001 and wish they had more power because it really isn't an upgrade over a K03s and fail to realize that the turbos are nearly the same. Usually due to lack of fueling.
Lastly, One must consider our FWD platform. Most big turbos (gt dual bb series) will just spin thru lower gears and even 3/4th on the highway at speed. Not very useable on the daily IMO. Even at 18psi on my f23 with an un tweaked file and a spec stg3+ clutch I rip thru 2nd gear spinning tires.
But let's get real. If you want a useable 300+ tq/hp power plant you need Haldex/Quattro or at least an LSD...end rant haha
True story
Also this thread has some pretty good info for people looking at turbo options. I vote for adding this to mk4 read me sticky.
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