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post Jan 9, 2004 - 4:46 AM
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frotou

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I`m in progress to complete a 7agte in my ST 1994.(Don`t try to change my mind , there a lot of work there is made now). I have a GREDDY E MANAGE + PROFEC e01 as piggyback but I would like to know if I can use my 7afe ecu or I NEED the 4age ecu for this setup ?

There is somebody who try this in a 6th gen celica ?

Thank you for help , and what a NICE site on the 6th gen !

Frotou
 
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post Jan 22, 2004 - 10:07 PM
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Kwanza26



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QUOTE (toyotaspeed_90 @ Jan 22, 2004 - 6:34 PM)
actually you DON'T have to get a 4a-ge ecu or harness.... since you're doing a conversion, you should already have a donor motor (4a-ge) and should be able to get any sensors you need from it.... you can splice into the 7a-fe wiring..

but since the GE head will rev much higher, you will need the rev limiter removed and fuel/air curves changed a bit....

.... forgot to mention, the 4age head you need to use is one from a redtop if you plan on using the stock ecu..... the bluetop 4a-ge has t-vis... you can not hook up the t-vis, but you'll be robbed of power

It will work, but it's pointless to use. The 7A ecu fuel-cuts at 6300-6400 rpms or so... and that barely taps the GE heads power potential, so using a 7AFE ECU will be exactly what you don't want to do. Why bother modifying the 7A ecu when you can just use the far superior (performance-wise) 4AG ECU?

As far as the heads go, you can use either or. The blue top will have higher potential for power in stock trim, considering it has much larger ports, however, the redtop will have a nicer torque curve. That's just the head. If you want TVIS (assuming you mount a bluetop with TVIS and the 8 runner intake manifold), use a 4AG TVIS ecu. If you don't, want TVIS you can just use a non-TVIS ecu (not necessary, but you can) and plug the TVIS actuator. If you use a Redtop head, along with its 4 runner intake manifold, you will not have TVIS and will porbably have to use the non-TVIS ecu. Basically, to best utilize each versions advantages, use each's own ECU. You can actually even swap manifolds... the ideal set-up would be bluetop with with redtop's single runner intake manifold (you'll need an adaptor). The 7A ecu will not be the best suited for this swap. Also consider, 4AG ecu's are dirt cheap.

Now for the block, you can use the stock internals with redtop 4AG pistons (must be redtop pistons because the blue top pistons use a different diameter pin [18mm]). The rods will need to be slightly modified to fit the 4AG pistons, because it's float pin vs. press fit. Either way, if you're going turbo, you can use the forged 4AGZ pistons (low comp) or if you're going all-motor, you use the high-comp pistons...


--------------------
"It's ok to be naked girl... I'm an artist!"

1995 AT200 Celica ST: stocked out daily driver...

1984 AE86 Corolla GT-SR5: silvertop 20V 4AGE project car jacked up with goodies...

1991 SW2x MR2 n/a: bare bones hardtop model soon to be...

Posts in this topic
- frotou   7AGTE   Jan 9, 2004 - 4:46 AM
- - doGGy   QUOTE (frotou @ Jan 9, 2004 - 2:46 AM) I`m in prog...   Jan 9, 2004 - 5:00 AM
- - Kwanza26   QUOTE (frotou @ Jan 9, 2004 - 9:46 AM) I woul...   Jan 9, 2004 - 5:11 AM
- - frotou   It`s just because in all the site that refer to th...   Jan 9, 2004 - 8:39 AM
- - SpedToe169   Go with a stand alone. By the time you buy the e-...   Jan 9, 2004 - 9:27 AM
- - DustyBurns30   QUOTE (Kwanza26 @ Jan 9, 2004 - 3:11 AM) QUOTE (fr...   Jan 10, 2004 - 1:32 PM
- - Kwanza26   QUOTE (DustyBurns30 @ Jan 10, 2004 - 6:32 PM) hey ...   Jan 10, 2004 - 4:14 PM
- - DustyBurns30   how big of an issue is wiring on a stand alone? ...   Jan 10, 2004 - 8:26 PM
- - Kwanza26   QUOTE (DustyBurns30 @ Jan 11, 2004 - 1:26 AM) kwan...   Jan 10, 2004 - 8:39 PM
- - frotou   Kwanza 26 : Well, thank you for respecting me and ...   Jan 11, 2004 - 1:25 AM
- - Kwanza26   QUOTE (frotou @ Jan 11, 2004 - 6:25 AM) Kwanza 26 ...   Jan 11, 2004 - 1:45 AM
- - FallenHero   I thought about doing this a while back and figure...   Jan 11, 2004 - 1:59 AM
- - celica3sgte   I'm curious. How much does a project like thi...   Jan 11, 2004 - 3:23 AM
- - frotou   www.sdsefi.com I look at this product and it`s ve...   Jan 11, 2004 - 3:31 AM
- - toyotaspeed_90   actually you DON'T have to get a 4a-ge ecu or ...   Jan 22, 2004 - 1:34 PM
- - 97sccelica   QUOTE (toyotaspeed_90 @ Jan 22, 2004 - 10:34 AM) a...   Jan 22, 2004 - 6:22 PM
- - Kwanza26   QUOTE (toyotaspeed_90 @ Jan 22, 2004 - 6:34 PM) ac...   Jan 22, 2004 - 10:07 PM
- - OOBE   For a hybrid like that, you need a Haltech E6K, an...   Jan 22, 2004 - 11:54 PM
- - toyotaspeed_90   yes, stock rev limiter is around 6300 or so, but i...   Jan 22, 2004 - 11:58 PM
- - Kwanza26   QUOTE (toyotaspeed_90 @ Jan 23, 2004 - 4:58 A...   Jan 23, 2004 - 12:43 AM
- - FallenHero   My thougths.... IF you use the 4age ecu, how hard...   Jan 23, 2004 - 1:07 AM
- - 97sccelica   QUOTE (FallenHero @ Jan 22, 2004 - 10:07 PM) My th...   Jan 23, 2004 - 1:51 AM
- - Kwanza26   I'd imagine the reason he wants to use the 7A ...   Jan 23, 2004 - 2:10 AM
- - toyotaspeed_90   actually we're about to do a swap in my ae92 S...   Jan 23, 2004 - 2:22 AM
- - Kwanza26   QUOTE (toyotaspeed_90 @ Jan 23, 2004 - 7:22 AM) ac...   Jan 23, 2004 - 2:41 AM
|- - Jehuty   QUOTE(Kwanza26 @ Jan 23, 2004 - 2:41 AM)QUOTE...   Jan 5, 2005 - 10:54 PM
|- - Kwanza26   QUOTE(Jehuty @ Jan 6, 2005 - 3:54 AM)Ha! ...   Jan 6, 2005 - 2:43 AM
- - toyotaspeed_90   actually the latemodel ae92 in japan was map senso...   Jan 23, 2004 - 4:48 AM
- - FallenHero   my thought was to fit the 4age with the 7a wiring ...   Jan 23, 2004 - 11:55 PM
- - toyotaspeed_90   QUOTE (FallenHero @ Jan 24, 2004 - 4:55 AM) my tho...   Jan 24, 2004 - 2:08 AM
- - FallenHero   then there would surely be a way to swap over the ...   Jan 24, 2004 - 3:45 PM
- - toyotaspeed_90   QUOTE (FallenHero @ Jan 24, 2004 - 8:45 PM) then t...   Jan 25, 2004 - 8:57 PM
- - FallenHero   where down south???   Jan 25, 2004 - 9:30 PM
- - toyotaspeed_90   "down south" from where i live.... i...   Jan 25, 2004 - 11:52 PM
- - frotou   I repeat it ; I will use e manage with the ecu (st...   Jan 29, 2004 - 2:03 AM
- - frotou   My suposition about using the 7afe ecu with the 4a...   Jan 29, 2004 - 2:26 AM
- - Jehuty   Yes, I was planning on a smallport head for this a...   Jan 6, 2005 - 4:06 PM
- - frotou   My experience after one year , go with the 4age e...   Jan 6, 2005 - 4:23 PM
- - frotou   Finally I go stand alone this spring (autronic). T...   Jan 28, 2005 - 8:10 PM
- - Mr2swift   Here is the rule of thumb with any hybrid. You mus...   Feb 1, 2005 - 2:26 PM


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