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Author Topic: KE70 20V 4AGZE Build  (Read 1204 times)

Offline twotone_ra64

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KE70 20V 4AGZE Build
« on: Jul 16, 2018, 04:03:45 pm »
This popped up on my Facebook thanks to a shared post from MRP... someone in NZ is building a 4AGZE with a 20V head, Eaton M62 blower and is stuffing it into a KE70 Corolla. Some 4AGZE build inspo! Their page is called Yota Nation if you want to check it out.

From the post:

QWIKKE UPDATE:
Spent some time on this over the weekend prepping for first start up...

Specs:
4agze block.
20valve head.
12mm head studs.
Eaton M62 supercharger.
Link G4 Atom ecu.
560cc injectors.
0.8mm steel headgasket.
High rise headers.
Turbosmart 32mm BOV.
Tomei FPR.
Coil over plug.
45mm gilmer drive.
2.5” boost piping.
3” vacuum side.
Twin pass intercooler.







Celica the '84 Two-tone RA64 - Phase 2 In Progress! (159k); 1UZ-FE V8 Swap, W58 5-speed swap, Koni x Swift x T3 suspension, 6G Celica seat belts, TRD 2-way LSD, Konig Rewind 15x7" +0, zenki taillights, Cobra Imola Pro-fit seat, T3 seat rails
Mia the '91 Miata - Revived Twice! (264k); BP-5A 1.8L swap, an NB in NA clothes
Lilith the '94 Legend GS - The New Smooth Daily™ :shades: (144k)

Offline swan song

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Re: KE70 20V 4AGZE Build
« Reply #1 on: Jul 16, 2018, 04:52:37 pm »
No ITBs! I am outrage! Lol
1985 celica GT , 191k.
Want a low budget LSD? http://www.celica-gts.com/forums/index.php?topic=29189.0

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Offline Teranfirbt

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Re: KE70 20V 4AGZE Build
« Reply #2 on: Jul 16, 2018, 11:47:59 pm »
Someone ought to tell him he's built it wrong.... You definitely want the throttle *before* the supercharger, or else you get suuuuuper light-switchy reactions when you open/close the throttle...
1983 Celica GT-S 2RZ swap: Deered 2014 :(
1986 Tercel 4WD 4AFE Swap: Going strong
1986 MR2: What a beast!
2014 Elantra GT: The reliable one

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." ~ Albert Einstein

Offline twotone_ra64

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Re: KE70 20V 4AGZE Build
« Reply #3 on: Jul 16, 2018, 11:50:27 pm »
I noticed that too, and was wondering about that myself... he set up the supercharger like a turbo, and had to run a BOV as a result.
Celica the '84 Two-tone RA64 - Phase 2 In Progress! (159k); 1UZ-FE V8 Swap, W58 5-speed swap, Koni x Swift x T3 suspension, 6G Celica seat belts, TRD 2-way LSD, Konig Rewind 15x7" +0, zenki taillights, Cobra Imola Pro-fit seat, T3 seat rails
Mia the '91 Miata - Revived Twice! (264k); BP-5A 1.8L swap, an NB in NA clothes
Lilith the '94 Legend GS - The New Smooth Daily™ :shades: (144k)

Offline 2jra65

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Re: KE70 20V 4AGZE Build
« Reply #4 on: Jul 16, 2018, 11:54:22 pm »
That's awesome, and to think I just sold a Magnuson built mp62...

Offline Teranfirbt

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Re: KE70 20V 4AGZE Build
« Reply #5 on: Jul 16, 2018, 11:54:35 pm »
With the inlet unrestricted like it is, the blower will always be pumping "full" boost to the throttle, which means that at less than full throttle, the throttle will always be seeing whatever the BOV relief pressure is on the upstream side, assuming the BOV can keep up (which it can't). It's going to be completely undriveable, lol.
1983 Celica GT-S 2RZ swap: Deered 2014 :(
1986 Tercel 4WD 4AFE Swap: Going strong
1986 MR2: What a beast!
2014 Elantra GT: The reliable one

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." ~ Albert Einstein

Offline twotone_ra64

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Re: KE70 20V 4AGZE Build
« Reply #6 on: Jul 17, 2018, 02:07:38 am »
3rd gen M62's do have a bypass valve, so I think it just depends on if the BPV will be controlled like a turbo wastegate & open up at closed throttle...
Celica the '84 Two-tone RA64 - Phase 2 In Progress! (159k); 1UZ-FE V8 Swap, W58 5-speed swap, Koni x Swift x T3 suspension, 6G Celica seat belts, TRD 2-way LSD, Konig Rewind 15x7" +0, zenki taillights, Cobra Imola Pro-fit seat, T3 seat rails
Mia the '91 Miata - Revived Twice! (264k); BP-5A 1.8L swap, an NB in NA clothes
Lilith the '94 Legend GS - The New Smooth Daily™ :shades: (144k)

Offline Teranfirbt

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Re: KE70 20V 4AGZE Build
« Reply #7 on: Jul 17, 2018, 12:03:54 pm »
Interesting, that might make it work properly, or at least not make it a total light switch experience.
1983 Celica GT-S 2RZ swap: Deered 2014 :(
1986 Tercel 4WD 4AFE Swap: Going strong
1986 MR2: What a beast!
2014 Elantra GT: The reliable one

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." ~ Albert Einstein

Offline twotone_ra64

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Re: KE70 20V 4AGZE Build
« Reply #8 on: Jul 17, 2018, 12:16:13 pm »
I asked him about why he set up the S/C that way, and this was the response:

"There is quite alot of debate around placement of throttle body in the system... before or after supercharger...
Having it after the supercharger (like mine) gives you better throttle response. The intercooler and all associated piping is all up to boost pressure and just waiting for throttle to be opened... sure you bleed a bit of boost off via the BOV when throttle is closed but thats no problem for me. This is why the blow off valve is mounted as close to the throttle body as possible.

If you ran an air flow meter this boost bleed off would be an issue but i am using a manifold air pressure sensor so it doesnt care what happens before the throttle body..."
Celica the '84 Two-tone RA64 - Phase 2 In Progress! (159k); 1UZ-FE V8 Swap, W58 5-speed swap, Koni x Swift x T3 suspension, 6G Celica seat belts, TRD 2-way LSD, Konig Rewind 15x7" +0, zenki taillights, Cobra Imola Pro-fit seat, T3 seat rails
Mia the '91 Miata - Revived Twice! (264k); BP-5A 1.8L swap, an NB in NA clothes
Lilith the '94 Legend GS - The New Smooth Daily™ :shades: (144k)

Offline Teranfirbt

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Re: KE70 20V 4AGZE Build
« Reply #9 on: Jul 20, 2018, 01:48:57 am »
Interesting, I wonder how controllable the throttle is. It might just be that the BOV vents enough air for it to not matter, but I've litrally never seen an OEM supercharger setup with a post blower TB, and those aren't exactly known for boost lag.
1983 Celica GT-S 2RZ swap: Deered 2014 :(
1986 Tercel 4WD 4AFE Swap: Going strong
1986 MR2: What a beast!
2014 Elantra GT: The reliable one

"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." ~ Albert Einstein

Offline Sigma Projects

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Re: KE70 20V 4AGZE Build
« Reply #10 on: Aug 07, 2018, 02:57:35 pm »
I wonder if he has tried the TB the other way on say another build. I guess if it drives well, I guess the theory doesn't matter :heh: Regardless the craftsmanship on it looks superb.
1984 Celica GT Coupe    sold and missed it
1983 Celica GT Coupe    attacked... will miss it (RIP) JY
1982 Celica GT Liftback  sold and won't miss it, lol
1985 Celica GT Coupe    new love =P

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