(prototype) the GT Mini

1503 posts / 0 new
Last post
Cereal_killer
Cereal_killer's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 07/22/2013 - 13:10
Posts: 3713
Location: Ohio

Oh crap, I had opened this page awhile before you posted that and just had a minute to type my response…

Turns out we’re both correct! They’re 3v heads for an OLD Ford motor such as the 351 Cleveland which was originally a 2v engine. Not modern 4.6 / 5.4 3v heads at all.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

DB Custom
DB Custom's picture
Offline
Last seen: 3 hours 15 min ago
Joined: 01/13/2013 - 22:28
Posts: 19329
Location: Heart of Texas

Betting money they aren’t Ford heads lightens your wallet some, huh? Wink

Cereal_killer
Cereal_killer's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 07/22/2013 - 13:10
Posts: 3713
Location: Ohio

DB Custom wrote:
Betting money they aren’t Ford heads lightens your wallet some, huh? Wink

I did specify in the post I was sure they wernt modern 3 valve 4.6 / 5.4 heads. We have several in our fleet I’m responsible for and unfortunately I’ve had to have heads off them more times than I care to count (this isn’t faulting the engine family, just the Mexicans that work for my boss).

Other than their existence I know nothing of the old stuff. The 351c went out of production 5 years before my time lol.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

DB Custom
DB Custom's picture
Offline
Last seen: 3 hours 15 min ago
Joined: 01/13/2013 - 22:28
Posts: 19329
Location: Heart of Texas

I had 351W heads on my 302 in my ’74 Comet. Drove a ’71 Station wagon of my dad’s with a 351C in it. We once had a 70 LTD with a 400 that would smoke tires till you took your foot off the gas. Great big heavy car, plenty of muscle.

But none of that helps here, of course. Easy getting off track, isn’t it? lol

aginthelaw
aginthelaw's picture
Offline
Last seen: 4 hours 39 min ago
Joined: 09/30/2014 - 21:31
Posts: 654
Location: noo joisey

DB Custom wrote:
I had 351W heads on my 302 in my ’74 Comet. Drove a ’71 Station wagon of my dad’s with a 351C in it. We once had a 70 LTD with a 400 that would smoke tires till you took your foot off the gas. Great big heavy car, plenty of muscle.

But none of that helps here, of course. Easy getting off track, isn’t it? lol

I had a starsky and hutch ’75 gran torino replica. can’t remember if it had the cleveland and i put in the windsor, or a windsor and i put in a cleveland. in any event, some jackass cut me off, and totalled it. i was a cop at the time, and i went to apply for the state police exam. they told me they didn’t want me when i pulled in the parking lot. i told them i probably wouldn’t take the job anyway because i was on the swat team and having too much fun.

never fear shadows…it means a light shines nearby

M4D M4X
M4D M4X's picture
Offline
Last seen: 1 hour 16 min ago
Joined: 03/19/2014 - 05:17
Posts: 6874
Location: Austria (GMT + 1)

back to topic gentlemen! Wink 

find all available items in this list

i launched my new blog - all deals for members without MAP B$ Wink

find a short description about my idea here

 

if you want to buy a flashlight or battery for a better price: just send a mail - i will try to save you money!

Sillen
Sillen's picture
Offline
Last seen: 10 hours 20 min ago
Joined: 08/01/2018 - 06:39
Posts: 355
Location: Melbourne, Australia

take a cleaning glove to the thread Smile

Maverick1947
Maverick1947's picture
Offline
Last seen: 17 hours 20 min ago
Joined: 01/05/2018 - 19:53
Posts: 121
Location: Brazil, São Paulo

Oops… caused a little mayhem here… lol.
Sorry M4X…

There’s no replacement for displacement.

cujo255
cujo255's picture
Offline
Last seen: 5 days 16 hours ago
Joined: 02/27/2017 - 15:39
Posts: 58
Location: Minnesota

Did anyone receive the diffuser? my package was missing this part, perhaps they’re back ordered?

teacher
teacher's picture
Offline
Last seen: 25 min 34 sec ago
Joined: 02/23/2016 - 19:04
Posts: 7673
Location: NE & SW Alabama

I received mine.

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

Cereal_killer
Cereal_killer's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 07/22/2013 - 13:10
Posts: 3713
Location: Ohio

My gt mini I ordered on my birthday and shipped Aug 4th has finally been scanned in the US @ ISC Chicago! Hope to get it sometime next week.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

fluke
Offline
Last seen: 9 hours 27 min ago
Joined: 04/20/2018 - 13:58
Posts: 96
Location: London United Kingdom

Cant find this in search.

Does it memorise turbo?

Is it the same software and ui as BLF Q8?

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 25 min ago
Joined: 10/22/2016 - 11:41
Posts: 9537
Location: Houston Texas

fluke wrote:

Is it the same software and ui as BLF Q8?


Yes, just updated with a couple of new features.
joechina
Offline
Last seen: 3 hours 57 min ago
Joined: 03/05/2016 - 08:23
Posts: 1335
Location: Germany
fluke wrote:

Cant find this in search.


Does it memorise turbo?


Is it the same software and ui as BLF Q8?

Same UI as the Q8 plus
- x5 is a momentary mode e.g. for morse signalling. You have to disconnect the batteries to quit momentary

- In Modes and Strobes you can now navigate backwards with hold. The Q8 is locked in in a mode when you use hold, it has a 1.5sec time out .

- Top of the ramp is only 50 or 80%. You must use a double click to go to turbo

fluke
Offline
Last seen: 9 hours 27 min ago
Joined: 04/20/2018 - 13:58
Posts: 96
Location: London United Kingdom

joechina wrote:
fluke wrote:

Cant find this in search.

Does it memorise turbo?

Is it the same software and ui as BLF Q8?

Same UI as the Q8 plus - x5 is a momentary mode e.g. for morse signalling. You have to disconnect the batteries to quit momentary - In Modes and Strobes you can now navigate backwards with hold. The Q8 is locked in in a mode when you use hold, it has a 1.5sec time out . - Top of the ramp is only 50 or 80%. You must use a double click to go to turbo

 

Thank you.

fluke
Offline
Last seen: 9 hours 27 min ago
Joined: 04/20/2018 - 13:58
Posts: 96
Location: London United Kingdom

JasonWW wrote:
fluke wrote:

Is it the same software and ui as BLF Q8?

Yes, just updated with a couple of new features.

 

Thank you.

Mitko
Mitko's picture
Offline
Last seen: 4 days 10 min ago
Joined: 09/19/2014 - 05:20
Posts: 1530
Location: Bulgaria

One should swap the driver spring right after getting the Mini, its awful!, it causes lumen/lux flutctuatuins up to 20%. Otherwise, it if has a rear switch: the best nearly edc/all arround thrower light so far

Ofc i reworked mine Smile

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 25 min ago
Joined: 10/22/2016 - 11:41
Posts: 9537
Location: Houston Texas

Mitko wrote:
One should swap the driver spring right after getting the Mini, its awful!, it causes lumen/lux flutctuatuins up to 20%. Otherwise, it if has a rear switch: the best nearly edc/all arround thrower light so far

5.5A was plenty for me. I left it stock.
teacher
teacher's picture
Offline
Last seen: 25 min 34 sec ago
Joined: 02/23/2016 - 19:04
Posts: 7673
Location: NE & SW Alabama

Mitko wrote:
One should swap the driver spring right after getting the Mini, its awful!, it causes lumen/lux flutctuatuins up to 20%. Otherwise, it if has a rear switch: the best nearly edc/all arround thrower light so far

Ofc i reworked mine Smile

What battery tube & tailcap is that Mitko??

You never know how a horse will pull until you hook him up to a heavy load./"Bear" Bryant 

 .................................. "Slow is Smooth, Smooth is Fast" ...................................

       Texas Lumens Flashlights / M4D M4X Deals : sign up - save $$$$  

         Rudeness Level _ mΩ _ {width:70%} _ LightWiki _ LED Tint Chart  

      Xlamp size chart _ BatteryU _ Flashaholic? Need Professional Help???            TheOriginal _ TAB _ LightSearch _ BatterySearch _ 14500's _ DiCal 

 

                                             

Cereal_killer
Cereal_killer's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 07/22/2013 - 13:10
Posts: 3713
Location: Ohio

Hi guys, after about 45 days my gt mini arrived today.

What mods are needed to have it draw the full 5.5A claimed? I was under the impression none…

First I tried a ~3 month old 35E that I took out of another light that was reading 4.11v and measured the current at the tail on turbo and I only got 3.32A so I charged up an also very good condition 30Q and measured again fresh off the charger (@4.20v) and still only get 3.35A.

Double click to turbo right?

Do I need to bypass the springs and maybe swap to 18AWG LED wires?

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 25 min ago
Joined: 10/22/2016 - 11:41
Posts: 9537
Location: Houston Texas

Cereal_killer wrote:
Hi guys, after about 45 days my gt mini arrived today.

What mods are needed to have it draw the full 5.5A claimed? I was under the impression none…

First I tried a ~3 month old 35E that I took out of another light that was reading 4.11v and measured the current at the tail on turbo and I only got 3.32A so I charged up an also very good condition 30Q and measured again fresh off the charger (@4.20v) and still only get 3.35A.

Double click to turbo right?

Do I need to bypass the springs and maybe swap to 18AWG LED wires?


Are you using a clamp meter to measure amps?

My completely stock light measured 2.85A at top of ramp and 5.5A on turbo with 30Q.

I even got 4.3A from a protected Panny GA 3500mah. So something seems off on your readings.

Cereal_killer
Cereal_killer's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 07/22/2013 - 13:10
Posts: 3713
Location: Ohio

I don’t use a clamp meter, I have a .1omh shunt i use to make the connection then (with a dedicated-to-this-task DMM) measure the voltage across the shunt and run it threw ohms law. Same method I’ve used for years, it’s EXTREMELY accurate.

As a quick verification I just measured my eagle eye X6, it’s readng 5.25A which is exactly in line with what it should be doing (I keep record of all my builds and referenced it to check).

I’m very confident that my particular GT mini is truly only pulling 3.3A. Bummer.

How big is a visual brightness difference do you have from top-of-ramp to turbo? Mines very little.

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 25 min ago
Joined: 10/22/2016 - 11:41
Posts: 9537
Location: Houston Texas

Cereal_killer wrote:
I don’t use a clamp meter, I have a .1omh shunt i use to make the connection then (with a dedicated-to-this-task DMM) measure the voltage across the shunt and run it threw ohms law. Same method I’ve used for years, it’s EXTREMELY accurate.

As a quick verification I just measured my eagle eye X6, it’s readng 5.25A which is exactly in line with what it should be doing (I keep record of all my builds and referenced it to check).

I’m very confident that my particular GT mini is truly only pulling 3.3A. Bummer.

How big is a visual brightness difference do you have from top-of-ramp to turbo? Mines very little.


Try a lux test. See how many candela it’s putting out. If it’s well below spec, then there might be something adding resistance to your light. I would check both ends of your battery tube to make sure you have nice clean bare contacts. Remove any oil or dirt. If no change, I guess you would need to bypass the driver spring. ¯\_(ツ)_/¯

The jump from top of the ramp to turbo looks quite small. It’s 500 lumen, though.

DB Custom
DB Custom's picture
Offline
Last seen: 3 hours 15 min ago
Joined: 01/13/2013 - 22:28
Posts: 19329
Location: Heart of Texas

Seems odd to see a relative noob giving build advise to an advanced veteran…

Cereal_killer
Cereal_killer's picture
Offline
Last seen: 1 hour 57 min ago
Joined: 07/22/2013 - 13:10
Posts: 3713
Location: Ohio

I was more looking for what route to take CS wise with this, I’m sure I could open it up and make it perform. Should I even bother trying to mod it just to get it up to spec, should I have to? Maybe I asked the wrong thing at first: Did I just assume wrong and I got what I paid for (I was under the impression 5.5A and ~140kcd were stock numbers), did I get what everyone else received or is my sample defective?

Addendum I’m decided, now that the indicator LED is no longer working its time to email BG. Really bummed Angry I have the worst luck buying new lights recently, I should stick to builds but hey at least the ZL I got last Friday is just perfect!

 RIP  SPC Joey Riley, KIA 11/24/14. Now I am become death, the destroyer of worlds.

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 25 min ago
Joined: 10/22/2016 - 11:41
Posts: 9537
Location: Houston Texas

DB Custom wrote:
Seems odd to see a relative noob giving build advise to an advanced veteran…

Not really. I’ll help anyone out if I can regardless of their experience level. It’s just basic info and troubleshooting. Nothing very advanced. It’s not like these lights are rocket science. Party
BlueSwordM
BlueSwordM's picture
Offline
Last seen: 3 hours 45 min ago
Joined: 11/29/2017 - 12:34
Posts: 3093
Location: Canada

So, guys and gals, I received my GT Mini a few hours ago, and it’s been marvelous. Haven’t measured lumen output yet, but looks to be around 1200-1300 lumens compared to my Astrolux C8, along quite a bit more throw, and way better color temp at 4000k. It’s also so tiny!

And it uses NarsilM, and it’s awesome.

One thing I do not like though is how its ramping is actually slower than the BLF Q8 and Haikelite MT09R.

Is there a reason to this specifically? This is a strange behavior. I wonder if the MCU is actually legit or not, or a copy which works exactly the same except it doesn’t fully support ramping, or rather, a slower one.

My very own high current Beryllium Copper springs: http://budgetlightforum.com/node/64047
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

shirnask
shirnask's picture
Offline
Last seen: 1 hour 5 min ago
Joined: 03/21/2016 - 23:58
Posts: 714
Location: Louisiana

BlueSwordM wrote:
So, guys and gals, I received my GT Mini a few hours ago, and it’s been marvelous. Haven’t measured lumen output yet, but looks to be around 1200-1300 lumens compared to my Astrolux C8, along quite a bit more throw, and way better color temp at 4000k. It’s also so tiny!

And it uses NarsilM, and it’s awesome.

One thing I do not like though is how its ramping is actually slower than the BLF Q8 and Haikelite MT09R.

Is there a reason to this specifically? This is a strange behavior. I wonder if the MCU is actually legit or not, or a copy which works exactly the same except it doesn’t fully support ramping, or rather, a slower one.

How much difference did you see between your Q8 and the GT mini? – I just checked mine and they are within 0.02 seconds of each other and that is just measurement error.

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 25 min ago
Joined: 10/22/2016 - 11:41
Posts: 9537
Location: Houston Texas

Cereal_killer wrote:
Did I just assume wrong and I got what I paid for (I was under the impression 5.5A and ~140kcd were stock numbers), did I get what everyone else received or is my sample defective?

Several people got similar results to my own in both the amp draw and candela. (5+amps and 135kcd+)

Here is a review where they got results similar to yours with 3.4A and only 107kcd. So I guess they vary a bit? I don’t really know. We need more people to test things so we have a better consensus.

I was recommending to measure the Candela (and lumens if possible) just in case the light is performing as normal even though your amp draw was less than mine.

JasonWW
JasonWW's picture
Offline
Last seen: 1 hour 25 min ago
Joined: 10/22/2016 - 11:41
Posts: 9537
Location: Houston Texas

shirnask][quote=BlueSwordM wrote:

One thing I do not like though is how its ramping is actually slower than the BLF Q8 and Haikelite MT09R.

Is there a reason to this specifically? This is a strange behavior. I wonder if the MCU is actually legit or not, or a copy which works exactly the same except it doesn’t fully support ramping, or rather, a slower one.


It shouldn’t be noticeably slower. There are several videos of the GT mini online. Maybe you can compare yours to the ones in the video. I think it should be about 3 seconds from top to bottom.

The original MT09R driver had a much slower ramp than Narsil, like 5 seconds. I’m assuming you have a newer driver that is running narsil.

Pages