7agze?????????

Mr.SelfDestruct

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May 27, 2005
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any one ever heard of it?


block off of a 7afe, head off of a bluetop 4age, supercharger off of a 4a-gze.

my friends putting it in his ae86.
 

Jeff Lange

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Yeah I dunno, I like not waiting for power, and with a 1.6L (or 1.8L for the 7A), you're waiting a bit for the Turbo.

My AE86 is getting one of them MAP smallport DLI 170hp 4A-GZE's, with some upgrades next winter probably... can't wait. If it's not enough power, I probably will Turbo it though.


Look at the torque curve on this 7A-GZE, man that's awesome ;)

ae867agzesc14run01.jpg
 

Mr.SelfDestruct

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what if you had the rally-style anti-lag? after the initial wait in first gear, you wouldnt fall into lag because the anti-lag would keep the turbo spooling.
 

ToyoHabu

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Anti-lag
From Wikipedia, the free encyclopedia.

Anti-lag is a system used on WRC rally cars to completely eliminate turbo lag. It is a feature of the engine management system. WRC cars are fitted with a class mandated restrictor on the turbocharger inlet and this increases turbo lag significally. Because of the pressure drop across the restriction the pressure ratio for a given boost level is much higher and the turbocharger must spin a lot faster to produce the same boost as before.

Anti-lag effectively increases the mass of exhaust fed to the turbocharger. This is typically done by retarding spark timing to a point where most of the combustion happens in the exhaust manifold, typically around 40° ATDC. At the same time more air must be added, this can either be done by the use of a throttle bypass valve or a throttle stop solenoid. When anti-lag is switched on it is typically active when the throttle is closed, and when the throttle is opened the spark timing is resumed to normal.

Exhaust temperatures produced by this system are phenomenal but they can be controlled by varying the amount of fuel injected while anti lag is active; a richer mixture lowers the temperature. Anti-lag is typically only used on race cars because it can shorten the turbocharger service life down to impractical periods for street use. The turbine blades are simply eaten away by the flames. Rally cars generally change turbochargers every chance they get to do so.

Unless your rich :aigo:
 

Mr.SelfDestruct

I build planes... yeah...
May 27, 2005
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ToyoHabu said:
Anti-lag
From Wikipedia, the free encyclopedia.

Anti-lag is a system used on WRC rally cars to completely eliminate turbo lag. It is a feature of the engine management system. WRC cars are fitted with a class mandated restrictor on the turbocharger inlet and this increases turbo lag significally. Because of the pressure drop across the restriction the pressure ratio for a given boost level is much higher and the turbocharger must spin a lot faster to produce the same boost as before.

Anti-lag effectively increases the mass of exhaust fed to the turbocharger. This is typically done by retarding spark timing to a point where most of the combustion happens in the exhaust manifold, typically around 40° ATDC. At the same time more air must be added, this can either be done by the use of a throttle bypass valve or a throttle stop solenoid. When anti-lag is switched on it is typically active when the throttle is closed, and when the throttle is opened the spark timing is resumed to normal.

Exhaust temperatures produced by this system are phenomenal but they can be controlled by varying the amount of fuel injected while anti lag is active; a richer mixture lowers the temperature. Anti-lag is typically only used on race cars because it can shorten the turbocharger service life down to impractical periods for street use. The turbine blades are simply eaten away by the flames. Rally cars generally change turbochargers every chance they get to do so.

Unless your rich :aigo:
or unless you only use the anti-lag in full-race situations and change the impeller on the exhaust side like every 7-10 races
 

Jeff Lange

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lanky189 said:
that is the sexiest FLAT curve of any kind.

Yeah, it's definitely what I want for my AE86.

In the Supra, it's got a Turbo, I love the feel of boost hitting, but in the Corolla, I've got a small, torqueless 1.6L, I want all the torque I can get, as low down in the RPM range as I can get it. Some people love the high revving N/A power you get with something like the 20V 4A-GE, not me, I'll take the 4A-GZE for driving around town any day.
 

Mr.SelfDestruct

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whats funny is my friend has two ae86's, the coupe has a 16v w/ a trd mhg, the hatch has a 20v w/a stand-alone fuel system. the coupe also has the stock lsd, he wants to put the 7agze into the coupe.
 
L

lanky189

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Jeff Lange said:
Yeah, it's definitely what I want for my AE86.

In the Supra, it's got a Turbo, I love the feel of boost hitting, but in the Corolla, I've got a small, torqueless 1.6L, I want all the torque I can get, as low down in the RPM range as I can get it. Some people love the high revving N/A power you get with something like the 20V 4A-GE, not me, I'll take the 4A-GZE for driving around town any day.


im the same way...i hate the gutless 1.6 motors...specially in the mr2's/

whatsthe point of a high revving motor if it takes forever to get to revs?
 

gixxer750

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Mar 30, 2005
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I had a 7a-gte in my 86 mr2........... :) 7a block, blue top 4a-ge head, t3 turbo :) Sure....it didn't have any power till about 4.5k, but when it did, it did.
 

mkiii222

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Mar 31, 2005
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This thread makes me miss my 7A powered 95 Celica. Sure it had half the power of the Supra, but it only weighed ~2400 pounds.

There were countless threads on 6gc.net(6th gen Celica) about the different A series motors.
 

Charlie97L

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just build a 4agze or 4agte.. the 7a rods suck. i obliterated several of them in my 7agte turbo celica. bah! the stroke is too long. that's why it's an F series.
 

NgoFcukinWay

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aaronc222 said:
This thread makes me miss my 7A powered 95 Celica. Sure it had half the power of the Supra, but it only weighed ~2400 pounds.

There were countless threads on 6gc.net(6th gen Celica) about the different A series motors.

Correct me if I'm wrong, but don't you mean 7SFE for the ST 6th gens? I've heard of silvertop 4AGE swaps into Celi's though.
 

SP 7M

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That is such a nice chunk of torque from a 4 cyl. It comes on so nice and early.

I can't remember if I've ever seen a 3S-GTE in an AE86, but that would be a sweet setup.

I'm with you guys on the gutless 4 cyls. They suck. Honda has got to be the worst company at making engines with torque-usable torque.
 

Jeff Lange

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Got Boost? said:
Correct me if I'm wrong, but don't you mean 7SFE for the ST 6th gens? I've heard of silvertop 4AGE swaps into Celi's though.

I don't think there was ever a 7S-FE engine, 5S-FE, yes, 7S-FE... never heard of it.

As far as what engine came in 6th Gen Celicas, there was 2 engines available, the 1.8L 7A-FE, and the 2.2L 5S-FE. The 7A-FE-equipped cars were the AT200, the 5S-FE-equipped cars were the ST204, and the 3S-GTE-equipped cars (not sold in North America mind you) were the ST205.
 

NgoFcukinWay

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Jeff Lange said:
I don't think there was ever a 7S-FE engine, 5S-FE, yes, 7S-FE... never heard of it.

As far as what engine came in 6th Gen Celicas, there was 2 engines available, the 1.8L 7A-FE, and the 2.2L 5S-FE. The 7A-FE-equipped cars were the AT200, the 5S-FE-equipped cars were the ST204, and the 3S-GTE-equipped cars (not sold in North America mind you) were the ST205.

Ah ok. I always thought the 5th gen and 6th gen US Celis ran the S-series motors cuz with chassis, I mostly see ST20X or ST18X. Thanks for clearing it up for me.
 

mkiii222

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Yup, Celicas ran S and A series motors since the late 80's(<85 ran R series). Don't know why they dropped to the F series heads in the states for the 6th gen(overseas still got the 3SGE which got bumped to 200+hp).
FYI G heads ala 7MG(T)E or 3SG(T)E are true dohc where F heads(7AFE, 5SFE ...) use a 'twin cam' setup.