Basic Lowrider ST questions
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Stellar HDF Member
Joined: May 2014
Posts: 2,486
Likes: 695
From: Huntington Beach, CA
Basic Lowrider ST questions
I have heard conflicting information about the Lowrider ST (2023). I was hoping to get some questions answered.
1. According to some, the LRST already effectively has a Stage 1 insofar that the stock pipes are as good as slip-ons, you already have the heavy air breather. Comments? I personally really like the look of the stock pipes and if I change them it will not be for looks.
2. Some commentators have said that the LRST already has the Torque Cam. Surely not? If so, what would a Stage 2 do?
I have ordered an engine guard for the bike. It was not in stock, so I'm having to wait, which makes me nervous; don't ever want to drop a bike without a protective engine guard. Denting that fairing would ruin my whole day. Granted, I've only dropped a couple of times in over 50,000 miles of riding, but still ... So my question is, how good a job do the guards do for protecting the bike in the event of a drop? Noob question, I know.
1. According to some, the LRST already effectively has a Stage 1 insofar that the stock pipes are as good as slip-ons, you already have the heavy air breather. Comments? I personally really like the look of the stock pipes and if I change them it will not be for looks.
2. Some commentators have said that the LRST already has the Torque Cam. Surely not? If so, what would a Stage 2 do?
I have ordered an engine guard for the bike. It was not in stock, so I'm having to wait, which makes me nervous; don't ever want to drop a bike without a protective engine guard. Denting that fairing would ruin my whole day. Granted, I've only dropped a couple of times in over 50,000 miles of riding, but still ... So my question is, how good a job do the guards do for protecting the bike in the event of a drop? Noob question, I know.
Grand HDF Member
Joined: Aug 2020
Posts: 4,798
Likes: 5,889
From: Knoxville
Its a well known fact all M8s come what was stage 1 for twinkies.
changing out muffs or air cleaner is purely aesthetic or individual preference for aftermarket.
a tuner will help in regards to where you are geographically. But its not necessary.
but there will be claims of what I have typed as bull, but I am posting what I have learned.
Plenty of data if folks want to learn too.
changing out muffs or air cleaner is purely aesthetic or individual preference for aftermarket.
a tuner will help in regards to where you are geographically. But its not necessary.
but there will be claims of what I have typed as bull, but I am posting what I have learned.
Plenty of data if folks want to learn too.
Advanced
Joined: Mar 2014
Posts: 73
Likes: 27
From: Washington
The air cleaner is a "stage 1". The exhaust isn't unless this is an ST thing. Until the exhaust is replaced, the air filter isn't really doing anything because airflow isn't actually increased through the engine.
As far as a torque cam (SE447), I don't know. Wouldn't that be nice.
As far as a torque cam (SE447), I don't know. Wouldn't that be nice.
Stellar HDF Member
Joined: Aug 2019
Posts: 3,151
Likes: 1,932
From: Unreconstructed
The air cleaner is a "stage 1". The exhaust isn't unless this is an ST thing. Until the exhaust is replaced, the air filter isn't really doing anything because airflow isn't actually increased through the engine.
As far as a torque cam (SE447), I don't know. Wouldn't that be nice.
As far as a torque cam (SE447), I don't know. Wouldn't that be nice.
Last edited by snake_eyes; Jun 21, 2023 at 08:37 AM.
Road Master
Joined: Jul 2021
Posts: 1,142
Likes: 2,753
From: England
Stock air cleaner is restrictive, but as above, there's no point changing it without switching the exhaust. I intend to go with a Jackpot Riot 2:1 and a SE Ventilator Extreme intake.
Stock cam is hotter than other M8 factory fits, but it's still pretty luke warm. Much better alternatives out there. I'm planning on a Cyclerama CR480.
Stock cam is hotter than other M8 factory fits, but it's still pretty luke warm. Much better alternatives out there. I'm planning on a Cyclerama CR480.
Road Master
Joined: Nov 2022
Posts: 802
Likes: 396
From: Missouri
correct, the cam is not the stage 2 TQ cam. just general nature the cu in adds torque. the CVO bikes with a 177 have a slightly larger cam (all as stated by a master tech who has measured, wont state the numbers...also builds and rides high end drag bikes, so i trust his word) if time allows, i will measure lift when i pull my cam. i plan to install my stock 117 cam into a 107 glide standard.
the intake is healthy enough to support the vast DROP IN CAMS available. going bigger inch warrants more air in flow, but your is more than adequate.
remember, most dyno session are only marginally close to 90% of what street riding air flow will really be, at speed the 90* horn becomes some what of a ram intake and should help the cause. the EX ventilator surpasses on dynos as it draws straight into the throttle body.
the intake is healthy enough to support the vast DROP IN CAMS available. going bigger inch warrants more air in flow, but your is more than adequate.
remember, most dyno session are only marginally close to 90% of what street riding air flow will really be, at speed the 90* horn becomes some what of a ram intake and should help the cause. the EX ventilator surpasses on dynos as it draws straight into the throttle body.
Grand HDF Member
Joined: May 2006
Posts: 3,636
Likes: 1,208
From: Ohio
M8s do not come with a complete Stage 1 and are not equivalent to what was a Stage 1 Twin Cam. A real Stage 1 is not compliant to EPA standards. By definition that is what it is…pipes, air cleaner and tune. I know Harley was sued by the EPA and has changed the definition to Stage 1 as compliant to EPA standards but I don’t buy the marketing BS. EPA standards are more strict than ever so getting a good set of non EPA slipons and a real tuner (not the joke Harley sells called Street Tuner) will complete the Stage 1 and let the bike breathe while picking up more power. The bike will be more responsive and run cooler too.
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Grand HDF Member
Joined: May 2006
Posts: 3,636
Likes: 1,208
From: Ohio
It’s a well known fact all M8’s come what was stage 1 for twinkies.
changing out muffs or air cleaner is purely aesthetic or individual preference for aftermarket.
a tuner will help in regards to where you are geographically. But it’s not necessary.
but there will be claims of what I have typed as bull, but I am posting what I have learned.
Plenty of data if folks want to learn too.
changing out muffs or air cleaner is purely aesthetic or individual preference for aftermarket.
a tuner will help in regards to where you are geographically. But it’s not necessary.
but there will be claims of what I have typed as bull, but I am posting what I have learned.
Plenty of data if folks want to learn too.
A real non-EPA Stage 1 will add power to an M8 just like it did with the Twin Cam. Everyone knows they are choked down…
Last edited by stratplexi; Jun 22, 2023 at 07:58 AM.
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Stellar HDF Member
Joined: Mar 2017
Posts: 3,174
Likes: 1,466
From: Charleston, SC
I have heard conflicting information about the Lowrider ST (2023). I was hoping to get some questions answered.
1. According to some, the LRST already effectively has a Stage 1 insofar that the stock pipes are as good as slip-ons, you already have the heavy air breather. Comments? I personally really like the look of the stock pipes and if I change them it will not be for looks.
2. Some commentators have said that the LRST already has the Torque Cam. Surely not? If so, what would a Stage 2 do?
I have ordered an engine guard for the bike. It was not in stock, so I'm having to wait, which makes me nervous; don't ever want to drop a bike without a protective engine guard. Denting that fairing would ruin my whole day. Granted, I've only dropped a couple of times in over 50,000 miles of riding, but still ... So my question is, how good a job do the guards do for protecting the bike in the event of a drop? Noob question, I know.
1. According to some, the LRST already effectively has a Stage 1 insofar that the stock pipes are as good as slip-ons, you already have the heavy air breather. Comments? I personally really like the look of the stock pipes and if I change them it will not be for looks.
2. Some commentators have said that the LRST already has the Torque Cam. Surely not? If so, what would a Stage 2 do?
I have ordered an engine guard for the bike. It was not in stock, so I'm having to wait, which makes me nervous; don't ever want to drop a bike without a protective engine guard. Denting that fairing would ruin my whole day. Granted, I've only dropped a couple of times in over 50,000 miles of riding, but still ... So my question is, how good a job do the guards do for protecting the bike in the event of a drop? Noob question, I know.
I would go to one of the Harley shops around your area and ask to speak with the Service Manager. Surely him or one of his "seasoned" techs would be able to answer your questions.
Now the question is, do you have any dealers there that you trust? There are some real good dealers in the Harley Network.
Advanced
Joined: Apr 2022
Posts: 58
Likes: 21
From: New Jersey
If you like the look of the stock pipes, I run TAB performance slip-ons on my LRS. I have the zombie baffles which are significantly louder than stock. The mufflers use the stock heat shields but have a nice black tip. You can also get different baffles to suit your need.
