Supercharging 20 Valve 4age - Toyota Nation Forum : Toyota Car and Truck Forums

20ValveMR2 · 06-27-2005, 11:10 PM

Hi guys, before i invest $300 aud on a second hand sc12 supercharger there is a couple of questions that i need to find the answers to.

1. Will the 4agze supercharger brackets bolt directly onto a 4age 20 valve motor?
2. Will the 365 cc/min 4agze injectors fit directly in place of the 4age 20 valve 295 cc/min ones?
3. Do i need to upgrade my fuel pump?
4. Do i need to fiddle around with the timing of the cams?
5. Will the engine be strong enough to handle max 8 psi and running rich?

Thats really all i can think of now

. I figure it would be a lot cheaper than getting an exhaust manifold made, turbocharging and lowering compression etc. If theres anything else i need to do for the conversion please let me know. Thanks a lot.

20 Valve MR2

ssl · 04-14-2006, 01:04 AM

u know, this is exactly what i was just wondering....i bought an mr2 today, and i've been pricing out a replacement gze block for it. looks like it could almost run me as much as getting a 20v to put in....supercharging that would just be nice

toyotaspeed90 · 04-14-2006, 02:21 AM

Quote:

Originally Posted by 20ValveMR2

Hi guys, before i invest $300 aud on a second hand sc12 supercharger there is a couple of questions that i need to find the answers to.

1. Will the 4agze supercharger brackets bolt directly onto a 4age 20 valve motor?
2. Will the 365 cc/min 4agze injectors fit directly in place of the 4age 20 valve 295 cc/min ones?
3. Do i need to upgrade my fuel pump?
4. Do i need to fiddle around with the timing of the cams?
5. Will the engine be strong enough to handle max 8 psi and running rich?

Thats really all i can think of now

. I figure it would be a lot cheaper than getting an exhaust manifold made, turbocharging and lowering compression etc. If theres anything else i need to do for the conversion please let me know. Thanks a lot.

20 Valve MR2

1. yes
2. no, 20v uses sidefeed injectors
3. no, but it's a good idea
4. no
5. yes, but you would need gze electronics or stand alone to run (or a ghetto setup)
6. no, it's not practical

ssl · 04-14-2006, 05:24 AM

didn't you say in my other thread it wouldn't be worth? or did you mean it wouldn't be worth it to buy the 20v and supercharger? because i have the supercharger on the blown gze in my car. its got a rather nice rod piercing, i should get photo's....

so to thread jack. thought it might relate though

kapone5684 · 06-04-2006, 09:15 PM

I am going to be attempting a sc and a turbo set up in my 94 corolla. It is going to take alot of time and money but I will let you know how it works out. also in regards to the injectors I would go with the side feed injectors out of the mr2 3rd gen i think is what i bought they are side feed and reqiure the snipping of the tab or injector harness for them also. you can get these injectors in a wide range of cc rating. I pickked up 450 cc sard injectors for my project.

rob

toyotaspeed90 · 06-05-2006, 03:52 AM

Quote:

Originally Posted by kapone5684

I am going to be attempting a sc and a turbo set up in my 94 corolla. It is going to take alot of time and money but I will let you know how it works out. also in regards to the injectors I would go with the side feed injectors out of the mr2 3rd gen i think is what i bought they are side feed and reqiure the snipping of the tab or injector harness for them also. you can get these injectors in a wide range of cc rating. I pickked up 450 cc sard injectors for my project.

rob

another one of the 'look what i can do' cars... not 'look how i've built this car to actually be fast' car.....

i'm sorry.... an sc12 (or sc14) and turbo on the same motor is, well, pretty stupid. The only upside is people believe that the s/c will help with lowend torque before the turbo spools.... so you end up spending so much more money on special piping and bypass valves so that you can keep s/c boost low and when the turbo makes boost you don't ahve to flow it through the s/c (because it's a restriction).... and yet, with that (or less) money you could have a well put together turbo system that makes more torque and hp....

450cc is gonna be small unless you keep the boost low

ToyotaTechGeek · 06-05-2006, 08:49 AM

my question is: will the SC12 be able to 'keep-up' with the 20v's ability to breathe? i mean, i own an SC and sometimes i realy, really feel the SC12 running out of breath up top.

kapone5684 · 06-05-2006, 11:31 AM

not really sure I am building my car as a twin charge so breathing wont be a problem. I am not quite sure what the max boost is on the sc12 or the sc14 I am going to be putting on the sc14. I think. and if you put on a pulley it should have no problem breathing. you just have to figure out what your needs are.
and speed90 what do you know about building something that works that no one else has done before?

rob

toyotaspeed90 · 06-05-2006, 11:57 AM

um, it HAS been done before..... there even used to be an HKS kit for the s/c mr2's... there's a few of them running around still..... bu the numbers put out by them were not as impressive as just a straight turbo setup.....

don't think you're reinventing the wheel here... it HAS been done

kapone5684 · 06-05-2006, 06:04 PM

regardless of what has or hasn't been done. This is not a common project of any sort that the average enthusiast does. I have never once seen or heard anything on or about a sc/turbo 20v....if you have proof...id love to see it....Again this is a custom project that is rarely even considered or performed. The point of a forum is for input, ideas, and HELP...you provide none of the three concerning this so stay out of it...

o and by the way...Thank You

kapone5684 · 06-05-2006, 06:05 PM

sorry for the problems in your thread 20valveMR2

ToyotaTechGeek · 06-05-2006, 07:08 PM

well, you initially said SC12.

BrightTundra04 · 06-05-2006, 07:22 PM

Not to be an ass but if you google sc/turbo 4age it comes up with 20 articles on the subject. You may find interest in how this guy did his. http://www.mr2supercharger.com/7Aengines.html

kapone5684 · 06-05-2006, 07:33 PM

sorry apparently you didnt understand what this post was about. what was asked was can you SUPERCHARGE a 20V silver top. not a 16 v red or blue or black top. but thanks for thinking you know what you are talking about. I know that a 4age 16v has been super charged. If you want to talk more about this I am going to stop being rude to someonelse's thread.

Rob

toyotaspeed90 · 06-06-2006, 05:14 AM

Quote:

Originally Posted by kapone5684

sorry apparently you didnt understand what this post was about. what was asked was can you SUPERCHARGE a 20V silver top. not a 16 v red or blue or black top. but thanks for thinking you know what you are talking about. I know that a 4age 16v has been super charged. If you want to talk more about this I am going to stop being rude to someonelse's thread.

Rob

google is your friend.....

you say that i provide no insight, and yet people keep showing you sights and links and telling you to go here and there... and then you blindly say "this is a custom project that has never been done...."...