General Supercharger Thread

All of Prospeed's stuff.. rails, injectors, regulator, etc. Pressure is good at the regulator but under WOT only, we're seeing ~12's for AFR when we should be seeing 9-10 according to Chris @ PS with his initial WOT tune. He told us to pull it back out and check connections. Thought I'd post here and see if anyone else has had a similar issue. Install was pretty straight forward regarding the pump

 

They told me the same when I went back for a re-tune after I had changed headers, exhaust, and enlarged the fender opening for more air. Since that tune I have added a secondary pump that kicks on at 3psi. I haven't been back to Prospeed since the secondary pump has been installed, so I don't know if that fixed the issue they were seeing.

 

I've only just been reading about secondary pump stuff.

Have you also upgraded the factory fuel supply lines?

 

Interesting considering I purchased all this as a "kit" from them. Do you know what your wideband looks like after adding the second pump??

 

Yep, all lines have been replaced with larger ones.

 

Yeah, I purchased the same kit...I don't have a wideband installed yet.

 

How long have you been driving it around?

Edit: I'd imagine you'd find more power with the second pump added

 

If you have HPT and a wideband I can set you up with an initial tune or help you through setting your own up. My tune is a modified version of Viktors, and I certainly don't claim to be a tuner but I won't charge you like a tuner either, unless they charge like $200

 

A little over a year since adding the secondary pump, I'm on the second revision of my dyno tune with them. Had some issues with their work that I wasn't impressed with, and wanted to get another tuner, but never got around to it.

 

I’ve have the same pump as you but with stock fuel rails and 6AN fuel lines and FPR I got off Amazon. 650’s and 75mm pulley and at WOT it’s at 10.5

 

And to add to Honors info, I have the same fuel pump with stock lines/rails/regulator and Prospeed 750 injectors and at 10.5 WOT at 11psi

 

Thank you for the info guys. Doesn't seem like I'll need a second pump.. hopefully something was just missed. Can't imagine it's faulty

 

HPTuners is what most of us in the Tacoma SC world are switching to. They now support 07-21 Tundras.
I get my tune from one of the members on TacomaWorld and upload it via HPT software. He can take your data logs and adjust for whatever you're running mod wise. The initial start up cost of buying HPT is kinda expensive, but in my opinion totally worth it tuning wise. No need to go to a physical shop or leave your truck with someone, just upload tune files as you change things or as needed.

 

Sorry, having read a small swath of the 1.3 million posts, I have a question (that has surely been addressed). . .
The Maggie hits torque quicker than harrop on stage 1;
The Harrop has better air charge cooling;
I live a mile up, and tow ~7500# with no aero whatsoever;

That in mind, for towing is maggie better/more useable due to better (quicker) torque delivery or is the lesser air charge cooling especially at my elevation a detriment?
I figure I could do a harrop stage 2 and tune to remedy the slower (higher rev) torque delivery, but I'm not trying to eat Ferarris, just the damn mountain passes when I tow out from the city.
Clear as mud? @Bo-Hunter wrote a post back a ways that has me questioning usability and the actual need for the better cooling of harrop, but, thin air up here!

TIA

FWIW I'm in a '14 1794 4x4

 

There's a reason why Toyota TRD used the Maggy versus other options...I use mine for towing and it's amazing...

 

well...really really...there were no other options.

now the options are awesome.


personally...I'd do the Harrop. the TVS 2650 is the bomb.

 

Hahahaha, I HAD to state that...ha! but you're right, there are other options now and though there is more plenum volumes, and albeit, better cooling, the small TVS1900 will get there quicker...most ideal for towing...racing, different story...

 

agreed. it build boost fast.

my tuner has one...and it jumps way faster than mine.

 

OK. So there is definite low end torque advantage. Is the cooling of 2650 superior enough that for towing at high altitudes it would get the nod, or is it moot for long-term?
I love the idea of the harrop, and at my altitude could likely go to 80mm pulley and still not be at MSL values. .. . So, long-term . .? And I am not above juvenile fuel wasting, so there's that.

 

there are a few high altitude fellas on here - they would know better.

I have the Harrop, but the Mag is equal or better in HP installs <550.

I went straight to stage 2...it's exactly what I wanted. my intake is stock, so I had to stop at the 80mm pulley.

 

I'll do some towing from 5500ft to 10,000ft this summer with the Maggy. Not like that helps you atm lol. But i'll report back with observations when the time comes

 

I would think a turbo would be better but the kit is in development.

I doubt you would be able to tell the difference between the TVS 1900 and the TVS 2650 both are good choices. Magnuson has a TVS 2650 they are releasing soon too.

 

I only went Harrop because bigger looks better and every s/c Tundra I see has a Mag under the hood. Yes I have a penis enlargement appointment scheduled

 

Let me know how the larger blower works once said appointment is done

 

I pull a 7500lb TT and have our first trip planned in March I believe. Doesn't help now but will report my findings. I also installed a GCS 20 row trans cooler

 

It is unlikely I'll be able to disengage the safety (convince wife) and pull the trigger prior to march anyhow, just need to have my Obsessing behind me so I have a concrete plan for when the safety is off!

I also have a boxy 7500# TT, so that's exactly why this is a thing, and "honey it is far cheaper to upgrade this truck than to spring an extra 40k for the newer one."

 

That was the conversation we had too. Test drove a few diesels but my wife likes the Tundra more than I do. I told her I had to have the additional Prospeed stuff for towing of course.

 

Also, on the '14 there is a trans cooler present, did I read that this will not be compatible post SC install and go with some another one? setrab, and your GCS are what come to mind . .

 

Yes, I shopped newish cummins for a few months, but man I hate chrysler aside from that engine selection. and holy shit are they expensive to start, not to mention the added level of maintenance. . . and for a TT seemed maybe a bit much for 6 weekends a year.

 

I'd think you would be fine with the oem cooler. Haven't read about needing to swap it out