Catless dp on MT

[cblanchard]

Heard someone tell me running a catless down pipe on a manual isn’t smart but they didn’t elaborate further and I can’t find any threads about it specifically for a supra, any thoughts?

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[Eastwood]

Heard someone tell me running a catless down pipe on a manual isn’t smart but they didn’t elaborate further and I can’t find any threads about it specifically for a supra, any thoughts?

Causes overboost but a tune could resolve that.

 

[Timmy_Jones]

Causes overboost but a tune could resolve that.

Should be fine for OP, he put his brake lights in the front of his car.

 

[ColonelAdama]

Heard someone tell me running a catless down pipe on a manual isn’t smart but they didn’t elaborate further and I can’t find any threads about it specifically for a supra, any thoughts?

having been there, done that - I'd pass. Car just overboosts constantly and throttle is always over-correcting it, so you probably aren't getting any gains. Wait for a tune.

stock map - catless datalog:https://datazap.me/u/coloneladama/log-1771444921?log=0&data=1-2-4-9-15-34&solo=9

 

[Eastwood]

Should be fine for OP, he put his brake lights in the front of his car.

Ese el Diablo?

 

[QTR FMS]

I had to pull around 3-4 %on the compressor table and, 15% duty cycle to get the boost +-1 psi , i still need to fine tune it further

You will lose power with stock tune but once you custom tune it , it will be great

 

[Timmy_Jones]

I had to pull around 3-4 %on the compressor table and, 15% duty cycle to get the boost +-1 psi , i still need to fine tune it further

You will lose power with stock tune but once you custom tune it , it will be great

This is great insight...but you have to remember that OP put his brake lights in his headlights. Can we trust him to adjust the compressor table?

 

[PowerGetter]

FWIW, MHD's Stage 2 OTS tune "corrects" the MT's over boost issue as well. Obviously a custom tune would be optimal, but the OTS map is a decent base.

 

[ColonelAdama]

FWIW, MHD's Stage 2 OTS tune "corrects" the MT's over boost issue as well. Obviously a custom tune would be optimal, but the OTS map is a decent base.

sure it does but honestly OTS is trash on MT, just go custom and save your money getting the cheaper mhd license

 

[PowerGetter]

sure it does but honestly OTS is trash on MT, just go custom and save your money getting the cheaper mhd license

No argument here, I completely agree -- just throwing it out there so it's known.

 

[QTR FMS]

OTS maps would have been great if they were editable, they make a great base maps, but its a bit lean with too much timing correction, atleast for my car. and there is no option to enable knock cell.

 

[BigPoppaStuke]

sure it does but honestly OTS is trash on MT, just go custom and save your money getting the cheaper mhd license

I was reading your other thread on here. The issues you were having, was that from having a catless downpipe on a MT? Or is it just the MHD OTS tunes themselves causing you all the issues? I live in a location where I only have access to 94 octane and I was hoping MHD's OTS would be enough.

 

[rottmore]

ZF8 supremacy confirmed…...... Best of luck, gentlemen. Do keep us posted with your endeavors.

 

[Eastwood]

ZF8 supremacy confirmed…...... Best of luck, gentlemen. Do keep us posted with your endeavors.

Haha! Enjoy riding on D all day. While you’re doing that I’m grabbing my knob and wiggling it around at every stop light.

 

[ColonelAdama]

I was reading your other thread on here. The issues you were having, was that from having a catless downpipe on a MT? Or is it just the MHD OTS tunes themselves causing you all the issues? I live in a location where I only have access to 94 octane and I was hoping MHD's OTS would be enough.

I only had the limp mode issue on the e40 map but admittedly didnt put that many miles on the 93 ots.

I think it's because catless+ots+the way I shift. Obviously not everyone has the issue but a few on here do.

The 93 map is probably fine for you, just check a shifting log and get back to me if you have big overboosts

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