2GR-FE supercharger belt routing kit build thread - MR2 Owners Club Message Board
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post #1 of 84 (permalink) Old June 23rd, 2016, 19:51 Thread Starter
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2GR-FE supercharger belt routing kit build thread

some of you guys enjoy the progress along the way, so this isn't ready for sale yet but this thread is for the kit development.

This kit will only be for the belt routing to allow the stock TRD/Lotus supercharger to be used. a kit will follow later with an intake manifold that can use cheaper superchargers as well as larger superchargers and likely also support intercooling.

so without delay, the first lower pulley prototype came in today:



I'm pretty happy with it, right now it is using the HKS pulleys and they aren't available off the shelf so i'll have to make some of a similar size.

For the upper idler i'll use the same design i previously used. so i need to get it all installed on a car and get a properly sized belt.
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Last edited by Gouky; June 24th, 2016 at 07:11.
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post #2 of 84 (permalink) Old June 24th, 2016, 00:08
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Giggity, I'll be having supercharged dreams tonight.
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post #3 of 84 (permalink) Old June 30th, 2016, 10:31
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Quote:
Originally Posted by Gouky View Post
a kit will follow later with an intake manifold that can use cheaper superchargers as well as larger superchargers and likely also support intercooling.
Sweeeeeeeeeeeeeeeeeet!
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post #4 of 84 (permalink) Old August 18th, 2016, 18:14
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post #5 of 84 (permalink) Old August 23rd, 2016, 20:50 Thread Starter
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sorry, got the assembly together tonight so i could measure to order a belt. i have a belt ordered. it's a bit rare of a belt because it's only on a 1 ton dodge V10 without A/C. not a huge deal, i can order them in bulk and ship them with the kit.

Also, i've been thinking about the fuel injector size adjustability "issues" and there's a stop gap for low power. I can tweak the MAF table by a couple percent and call for a 52psi base fuel pressure and the stock injectors should support about 350-375WHP. it isn't perfect but it's good enough for now and it's a good test for the M62 kit which will max out somewhere around there anyways. it'll make that kit even cheaper.

Also, for the A/C guys there is a belt available 4.5" longer which is what the A/C requires.
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post #6 of 84 (permalink) Old August 25th, 2016, 13:52
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By the looks of it, are you driving the supercharger directly by the loop going upwards in the image? Placing the supercharger directly over the lower intake manifold in the valley.

What's your thoughts on the feasibility of driving the s/c placed to the left over the valve cover. Near the TRD placement?

I know there really is only one path to get the belt upwards between the vvt-i line and the engine mount.
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post #7 of 84 (permalink) Old August 26th, 2016, 17:18 Thread Starter
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The belt fits and this gives you a better idea of the layout. for now it *is* the TRD layout. the first part of the kit released will just be for the belt stuff because there are some people that own TRD/Lotus bits that want to bolt it on.

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post #8 of 84 (permalink) Old August 26th, 2016, 17:45
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Oh man. Can't wait. Sitting on a few coins in the hopes of getting a kit as soon as they are available.

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post #9 of 84 (permalink) Old August 29th, 2016, 23:03 Thread Starter
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Got it all in the car but i ran into a few minor issues that have prevented me from checking the belt tracking tonight. A big issue is the pulley boss on the water pump from a previous attempt at supercharger belt routing.

I'll cut it off on the next rain free evening and then check the belt tracking.

also, right now i have the bypass valve wired open because i haven't done anything to the engine fueling yet. but that won't stop me from testing belt tracking.
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post #10 of 84 (permalink) Old August 30th, 2016, 19:38 Thread Starter
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well, the weather cut my testing time way down tonight, but i was able to cut the old pulley boss off and start the engine. the belt appears to track perfectly now. I want to make a few minor tweaks to simplify the install and i actually need to make a production version of both parts including the pulleys but it's damn near there.
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post #11 of 84 (permalink) Old August 31st, 2016, 19:32
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I know you've heard it before, but thank you for taking this on and sharing so much of your findings.
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post #12 of 84 (permalink) Old September 3rd, 2016, 14:54
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Love the progress.

Do you feel that what you have worked out could also be adapted to placing an aftermarket s/c over the bank1 valve cover?
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post #13 of 84 (permalink) Old September 6th, 2016, 22:01 Thread Starter
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Love the progress.

Do you feel that what you have worked out could also be adapted to placing an aftermarket s/c over the bank1 valve cover?
There's no reason it can't be used for that. in fact this is pretty similar to the HKS kit anyways which works that way.
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post #14 of 84 (permalink) Old October 4th, 2016, 20:36 Thread Starter
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Well, i took the car out for it's first ride with the supercharger hooked up tonight to test that the belt routing would work well. the good news is i had no issues in 10 miles of driving.

I want to run a few tanks of gas through here get several hundred miles before the kit goes up for sale. I also want to revise the upper idler mount and make my own pulleys since the ones that are on there right now cannot be purchased.

so with that said, the initial part is done, everything appears to be happy. if it stays that way i imagine the belt routing stuff will be for sale in 4-6 weeks or so.
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post #15 of 84 (permalink) Old October 4th, 2016, 21:10
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Originally Posted by Gouky View Post
Well, i took the car out for it's first ride with the supercharger hooked up tonight to test that the belt routing would work well. the good news is i had no issues in 10 miles of driving.

I want to run a few tanks of gas through here get several hundred miles before the kit goes up for sale. I also want to revise the upper idler mount and make my own pulleys since the ones that are on there right now cannot be purchased.

so with that said, the initial part is done, everything appears to be happy. if it stays that way i imagine the belt routing stuff will be for sale in 4-6 weeks or so.
Any chance you are ready to let us know what supercharger to be looking for?

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post #16 of 84 (permalink) Old October 4th, 2016, 21:15 Thread Starter
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Any chance you are ready to let us know what supercharger to be looking for?

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Initially this is just a belt kit so you'll have to use the Lotus/TRD supercharger. a 2nd kit will come out with a lower intake manifold to use a cheaper supercharger. but that won't be ready right away.

but i won't divulge which application i'm pulling the supercharger for because people buy ahead and then get angry at me if i change my design.
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post #17 of 84 (permalink) Old October 4th, 2016, 21:19
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Initially this is just a belt kit so you'll have to use the Lotus/TRD supercharger. a 2nd kit will come out with a lower intake manifold to use a cheaper supercharger. but that won't be ready right away.

but i won't divulge which application i'm pulling the supercharger for because people buy ahead and then get angry at me if i change my design.
I understand.

Of course you must understand the level of excitement your work creates. I'm glad you take on projects like this.

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post #18 of 84 (permalink) Old October 4th, 2016, 21:49 Thread Starter
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I understand.

Of course you must understand the level of excitement your work creates. I'm glad you take on projects like this.

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I know, and honestly the community feedback is a big part of why i do this. I enjoy being a part of this community.
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post #19 of 84 (permalink) Old October 5th, 2016, 00:16
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Thank you for your time and energy with this project. It is items like this that make me want to jam the 2gr into my mk1.
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post #20 of 84 (permalink) Old October 5th, 2016, 00:54
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I'm so excited, been following this project for years!

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