2021 Heritage Supercharger Experience

[etsonaut]

Hello all.. I am new here. I own a 21 Heritage and would like to install a supercharger. I know the TRD/Magnuson is no longer available. I am looking at Harrop. Does anyone have any direct experience with supercharging their 200 series? Thanks in advance..

 

[sdnative]

LX 570 Harrop Supercharger Stage 1 and 2 Impressions

Stage 1 impressions below, Stage 2 impressions on page 4 Finally took my Dragy unit along for a ride to measure 0-60mph. 2015 LX 570 Mods: Harrop TVS2650 Supercharger (Stage 1 ) Tires: Yokohama Geolander HT, decent amount of tread, but 5 year old rubber Traction: off Drive mode: Automatic D...

forum.ih8mud.com

 

[etsonaut]

LX 570 Harrop Supercharger Stage 1 and 2 Impressions

Stage 1 impressions below, Stage 2 impressions on page 4 Finally took my Dragy unit along for a ride to measure 0-60mph. 2015 LX 570 Mods: Harrop TVS2650 Supercharger (Stage 1 ) Tires: Yokohama Geolander HT, decent amount of tread, but 5 year old rubber Traction: off Drive mode: Automatic D...

forum.ih8mud.com

Thank you!

 

[2021 LC200]

Just curious:
- Do you normally accelerate full throttle and do not find the LC200 to go fast enough?
- By getting the extra HP, will you drive the LC200 like a BMW SUV and you think the chassis, steering and brakes are up to it?

One thing for sure is premium fuel to prevent knock, as well as likely long term reliability issues. I would only for that reason never want one or buy a cruiser which is supercharged.

Then there is the significant $$$ involved. Just seems odd you seriously want this for a land cruiser. I see many other mods which if anything would at least make it look cooler.

 

[etsonaut]

I rarely drive it...

 

[Madtiger]

I rarely drive it...

Then you absolutely bought the wrong vehicle.

 

[gluaisrothai]

Just curious:
- Do you normally accelerate full throttle and do not find the LC200 to go fast enough?
- By getting the extra HP, will you drive the LC200 like a BMW SUV and you think the chassis, steering and brakes are up to it?

One thing for sure is premium fuel to prevent knock, as well as likely long term reliability issues. I would only for that reason never want one or buy a cruiser which is supercharged.

Then there is the significant $$$ involved. Just seems odd you seriously want this for a land cruiser. I see many other mods which if anything would at least make it look cooler.

What’s that thing they say about not yucking someone else’s yum? I find the supercharged LC200 quite sweet to drive, pulls hard without having to redline it, especially at higher elevations. On long hills I see it sit locked up at low boost whereas previously I would be down one or two gears. Turbo would be better but Harrop came through with the California smog friendly EO approval. And the $ to install were not crazy (I self installed). $7k on a $92k truck.

 

[gluaisrothai]

I rarely drive it...

My driving is medium to rare. Occasionally blood red.

 

[2021 LC200]

My driving is medium to rare. Occasionally blood red.

Sounds like you should buy a BMW or Porsche...

 

[gluaisrothai]

Sounds like you should buy a BMW or Porsche...

Nope, my other cars are a P85D, Fiat 500e, Lincoln Mark IV, DeLorean, Piper Turbo Saratoga, KTM 1290 SAR. No room for more.

 

[ZRTactical]

I have one on my 2020. I’ve put about 4k miles on it. Feels OEM and I love the increased power!

 

[Redbull]

Just curious:
- Do you normally accelerate full throttle and do not find the LC200 to go fast enough?
- By getting the extra HP, will you drive the LC200 like a BMW SUV and you think the chassis, steering and brakes are up to it?

One thing for sure is premium fuel to prevent knock, as well as likely long term reliability issues. I would only for that reason never want one or buy a cruiser which is supercharged.

Then there is the significant $$$ involved. Just seems odd you seriously want this for a land cruiser. I see many other mods which if anything would at least make it look cooler.

I have to put the pedal to the floor pretty often on the highway just to create enough speed differential to not cut off whoever I’m passing. When you have something fast you accelerate and get in the gap so quick - and best of all you did it with a lot of space to spare and not cut anyone off. You can pass a 3-4 car train on a single lane country road.

I wouldn’t supercharge my LX though it defeats one of the best parts of the car: reliability.

to the OP yes harrop and keep checking if someone can get a tune in

 

[AnyMal]

I debate this everyday. Definitely not “overkill” at all, idk how anyone can say it is not a nice addition to the 3UR. I have not seen failures posted either. From what ive read, reliability is not affected at that low boost psi range. I live at sea level though, if I were at elevation or visited frequently this would already have been installed.

 

[bloc]

These are 6000lb SUVs with brakes that many people overwhelm at stock power levels…

 

[ZRTactical]

These are 6000lb SUVs with brakes that many people overwhelm at stock power levels…

That doesn’t make any sense. Why does it matter how fast you get to a speed? That doesn’t impact your breaking. 60-0 is the same if you’re supercharged or now. It’s not like people buy supercharges to run these trucks 120+

 

[bloc]

That doesn’t make any sense. Why does it matter how fast you get to a speed? That doesn’t impact your breaking. 60-0 is the same if you’re supercharged or now. It’s not like people buy supercharges to run these trucks 120+

Right, because people with superchargers never crack 60.

My post may have been directed at a specific person that had been suggesting factory brakes (aka breaks) weren’t up to the job on our platform.. something I don’t do.

IMO the bigger issue is there being no real way to adequately tune the late model ECU for forced induction, and without a tune or standalone any supercharger implementation is a band-aid fix. But someone had already brought that up.

 

[gluaisrothai]

Right, because people with superchargers never crack 60.

My post may have been directed at a specific person that had been suggesting factory brakes (aka breaks) weren’t up to the job on our platform.. something I don’t do.

IMO the bigger issue is there being no real way to adequately tune the late model ECU for forced induction, and without a tune or standalone any supercharger implementation is a band-aid fix. But someone had already brought that up.

Harrop has documented testing that demonstrates that the stock LC200 map has adequate and conservative coverage in respect of the boost limits that they have placed on their stage 1 configuration. The stock fueling map has coverage up to the (modest) 6 psi boost that the stage 1 kit supplies.

 

[bloc]

Harrop has documented testing that demonstrates that the stock LC200 map has adequate and conservative coverage in respect of the boost limits that they have placed on their stage 1 configuration. The stock fueling map has coverage up to the (modest) 6 psi boost that the stage 1 kit supplies.

Cool. You might almost think harrop has a vested interest in these kits seeming reliable.

Whatever they say is conservative, it’s an ECU with fuel and spark tables Toyota developed for a naturally aspirated engine. Not one with forced induction. There are critical differences between the two when talking about spark and fuel.

Anyone saying a NA tune that has “adjusted itself” to the 25%+ over stock power solely on the increased airflow and detection of increased knock is frankly full of s*** implying they’ll retain stock-Toyota-like reliability. Every manufacturer designs a certain percentage of overheard into their spark and fuel tables to adapt to carbon, fuel, etc deficiencies and a supercharger will eat into that buffer in a large way, reducing the ecu’s ability to adapt to issues in the future.

 

[gluaisrothai]

Cool. You might almost think harrop has a vested interest in these kits seeming reliable.

Whatever they say is conservative, it’s an ECU with fuel and spark tables Toyota developed for a naturally aspirated engine. Not one with forced induction. There are critical differences between the two when talking about spark and fuel.

Anyone saying a NA tune that has “adjusted itself” to the 25%+ over stock power solely on the increased airflow and detection of increased knock is frankly full of s*** implying they’ll retain stock-Toyota-like reliability. Every manufacturer designs a certain percentage of overheard into their spark and fuel tables to adapt to carbon, fuel, etc deficiencies and a supercharger will eat into that buffer in a large way, reducing the ecu’s ability to adapt to issues in the future.

There really are not “critical differences” between NA and forced induction motors. The motor doesn’t know or care what’s providing manifold pressure as long as there is adequate fueling and detonation margin, and of course that the mechanical construction of the motor is adequate. Many years of successful FAA approval of turbo normalizers bears witness to that.

Correction to your comment- Harrop does not claim that the ECU adjusts to accommodate forced induction; rather that the existing base maps extend to MAF and IAT values that allow for 6 psi of intercooled boost with remaining overhead fueling margin. That is not the same as trim based adjustments.

Last thought- on reliability, it would be naive for anyone installing a system like this to expect OEM reliability- I certainly don’t. Even with adequate fueling margins the extra power will increase load on other engine and drivetrain components. Same can be said for many other modifications that enhance enjoyment of the vehicles, like oversize wheels and tires, heavy bumpers etc.

All that said, you seem emotionally invested in knocking (pun) Harrop rather than having an informed discussion so I don’t expect to change your mind. Good luck to you.

 

[Docwyte]

Uh, yes, yes there are. If you look at the motor as simply an air pump, the fact that you're now forcing in much more air with forced induction is a critical difference. As is the fact that when you force in that air, more fuel needs to be added and timing needs to be taken away. Since the factory ECU hasn't a clue that that's happening, it won't be able to add enough fuel or take away enough timing.

Harrop, frankly, are clowns by saying it's ok to slap a supercharger on our platforms without the need for tuning. They're saying that because they don't have a way to tune it, if they did, they absolutely would be including one.