CLOSED Group Buy: TRD/ Magnuson 4.0 Supercharger Quickchange Pulley Kit

There is a kit to upgrade auto transmissions cause they slip in certain gears. I drive stick and it sounds like ppl burn out their stock clutches pretty easily and need to upgrade their clutch. I'm still running stock for now.

 

Thread with lots of good stuff in it. First post sums up a lot.

https://www.tacomaworld.com/threads/trd-magnuson-4-0-supercharger-tips-tricks-and-mods.518932/

 

The fact your truck is heavy is more then reason to rehaul your valve body. The more stress you put on the tranny the more heat it builds. The more sluggish you shift, the more heat it builds as well. You are experience a double whammy in this situation. Not to mention the shift kit will help improve drivability, torque transfer and improve the overall way the truck drives as a whole.

As for me no pinging, no overheating, no lean conditions with the 2.5

You don't need a bigger coolant tank, but a larger capacity always helps to keep the blower as a whole cool for longer.

 

I'll have to talk with you more on this topic. A few other locals in phx area have done or are doing the trans upgrade too. I understand load = heat. heavier and more power are both more load, so yes double whammy. But I was not aware that there is much to be had on trans temps for sluggish shifts. Does it make sense, yes it is slip which is friction, but that is only like a 1-2 second action each shift compared to minutes or hours driving inclines or offroad. And the torque converter is not locked up in the first three gears right? So heat building up there just driving. My trans temp hit something like 230 - 235 when I was driving on the beach in mexico for ~30 miles to a campsite (couldn't get it lower by driving faster or slower) LOTS of load driving in sand, even with tires at 8 psi to stay on top of it. I have a much larger trans cooler on the shelf, but haven't yet done a mockup of it fitting with the extra radiator, coolant pump, and CBI bumper/winch. Hope it will fit.

Thanks in advance, keep it coming

 

by saying keep the blower as a whole cool for longer, what I think you really mean is - "take longer to get to temperature" and by extension take longer to cool down. And that would be useful if it were short blasts of power like a drag race, right? But say I am going to climb 7000 vertical feet on a drive, the temperature of the coolant is dictated by the BTUs of heat being generated and absorbed by the intercooler and the BTUs of heat removed by the radiator? When that equation is zeroed out the temp is stable. Coolant volume is not in the equation right?

Although on the flip side, boost is usually in bursts... so maybe more volume will dampen out the spikes that are seen?

 

This is all moot. You spend maybe about 5% of your time in boost. The rest in vacuum. If you spend all of your time in boost then you must be autocross which our trucks are definitely not set up for. That being said, if you have enough coolant volume available to the blower than you will be able to consistently shed heat, as there will be more coolant available than the blower is capable of creating that heat.

 

If I may, I'll add my two cents. I don't think the TRD system lacks cooling efficiency according to the butt dyno. This could opinion could differ if I had fancier gauges and what not. In my ZL1 Camaro in stock boost would heat soak after 15 minutes of spirited driving. Engine coolant would move up to 220 from 190 and oil temperature would sky rocket to 270+ from 220. Also the boost would decrease a PSI or two and the car would feel lethargic. The Tacoma in the other hand, I've never had it feel lethargic whether it be spirited driving or smashing through the desert or flying down graded roads. I've never seen the temperature needle move either. Maybe if i had additional gauges I could monitor exact temperature changes.

 

Thanks for your $0.02! Maybe a scanguage is in your future? And for reference, is this observation with your 2.6 or 2.8 pulley?

 

Yeah, the oem water temp needle doesnt move much. Scangauge or ultragauge will give u an accurate number to work with.

Sadly i dont recall ever seeing anyone with post charge air temps here, and i can only think of @Coupe who had a temp sensor for the trd blowers coolant iirc.

 

We would be able to tell if it was pinging and pulling massive amounts of timing due to overheating intake charge right? Not only by feel, but by the data logs and other parameters by those folks with a UCON, etc?

 

but it would be nice to have temp numbers to backup coolant/pump/ mods i think.

 

I may have to consider adding a coolant temp sensor to my blower coolant reservoir or something to see what we are looking at here.

I do agree though, this blower has never felt lethargic after beating the shit out of it even with my 2.5 pulley.

 

I installed a pre and post intercooler temp sensor. When on the freeway cruising 75 the post ic temps are 20ish degrees over ambient. On a hard run from 0 to 90 the pre and post ic temp differential is 45ish.
This is with UCON, 2.85 pulley, urd header, full custom exhaust, stock ic cooling system.

 

Wow, nice gear, nice exhaust, nice data. So we are saying the intake air temperature is 20 degrees over ambient in freeway cruise. And on a full blast run the intercooler is reducing temp by 45 degrees. Three questions, what is the intake temp, post intercooler, on the full blast run? And what was the approximate air temperature outside at the time? Not sure if this data is recent (winter time) vs. hotter months. And what boost do you actually get with your system and elevation/temperatures?

Do you have the ability to data log the coolant temperature with all of this? That would complete the picture of the intercooler and heat exchanger system, leaving little doubt about its room for keeping temps in check, at least with your boost levels.

Thanks,
Travis

 

When I was really checking it out it was late summer. Post ic temps will rise slowly up to 30ish over ambient during a long incline. I will have to check it out more.
My boost was 8.5 to 9 with just headers and stock y pipe but has dropped to 7 to 7.5 and much improved power with the equal length y and 3" tail section.
I don't have any means of data logging it as it is a self contained system originally made for aircraft. Here is the link if anyone is interested.
http://www.davtron.com/product-detail.php?M308-42
Thanks for the complements!

John

 

very nice!

We are talking Fahrenheit yes? (ya never know and Id like to be clear).

and
@Lucario Runner @Torspd

 

Yessir!

 

Hey if anyone here has a snoutcutter they are done using and want to sell it send me a PM.

 

Going for a smaller pulley Murph? You may want to check with holyhandgrenade or loginfailed for the cutter to see if they want to part with it.

 

Yeah I’m thinking so, I’ll PM them