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> Looking for advice on performance, Swap, hybrid, rebuild?
post Sep 25, 2004 - 11:16 PM
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Delta_Phoenix



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I've already made my cosmetic and suspension plans for my Celica that will come in the future, but now I have to think about what is going to be under the hood. Sometimes it only frustrates me to think about it so I figured I would get some ideas and opinions.

OK, so far I've pretty much ruled out a 7a-fte project. It just doesn't seem like it will pay off in the long run. The minimum goal I'm wanting to achieve is 250 whp, and 250 lb-ft. of torque. How I get that... I really don't care. The problem I'm having is that I don't know where to start. I want something that is going to completely blow people's minds when they see it. I know that getting something like that requires custom work - and I'm not talking about the homemade kind (unless you're someone that knows how to do it). I don't know anyone at all that can make custom headers, mounts, intakes, piping, etc.

I know that probably the most fun project would be a 7a-gte. I'm really impressed by frotou's project. After seeing all the custom work he's had done, I doubt I would ever be able to pull something like that off. I guess the only other option I have would to be a 4a-gze or 3s-gte swap. After seeing all the trouble that John went through with his 4a-gze, I'm kinda iffy about that as well. I know that the 3s-gte would give me trouble since I have an ST. I haven't done that much research about it. I don't know which generation of the 3s-gte is better, or if it's more common to find a USDM 3s-gte for the swap or a JDM 3s-gte. Sitting around and thinking about all this just makes me want to turn the Celica into a beater and save up for an EVO. But despite that, all my friends say I should keep the Celica and fix it up beyond belief. I guess that's the path I'll go unless a swap or hybrid project drives me insane. I am by no means a car expert, and I wouldn't even touch my engine in any way other than to change the oil, spark plugs, belts, or any other job that a monkey with a wrench could do successfully. I'm all about tearing it apart to learn about it, but I wouldn't consider putting anything together on my car without some supervision (I think I got lucky when I successfully replaced my front axles). I dunno, maybe I know more about cars than I think, but I'm still nervous to do anything big.

Alright, I started rambling. So give me your ideas, opinions, criticism or anything else you can come up with.
 
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post Oct 3, 2004 - 2:46 PM
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Kwanza26



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QUOTE (shadycrew31 @ Oct 3, 2004 - 11:34 AM)
i feel as though the 7a isnt getting enough credit. if you build up all the internals and port and polish. you could get that baby boosting about 9 psi. also throw in all your other stuff pulleys cam gears ignition ecu injectors etc. i feel and i will soon find out that the 7a-fe is going to have more potential then anyone ever expected. im going to be workin on a 7afe over the next year by myself. rebuilding and fixing and replacing everything. with stronger lighter faster parts. it wil be fast it will run hard. and it wont die!

It's not that it's not getting credit, cause it definately has proven itself under boost, but as far as parts and power goes, it lacks. There are no cam gears (not to mention the 7AFE has only one cam gear), no ECU programs short of a standalone, and pulleys make little difference. It just lacks in certain areas, but things like that do not heavily affect how the engine will respond under boost. The deal is, the guy wants 220bhp which is probably not doable with the stock 7AFE internals. I would estimate 220bhp out of a 7AFTE to be at least 12psi well tuned.

QUOTE
if you do these:
a)port and polish
b)3angle valve
c)bore to 82mm
d)4agze pistons
e)blueprint and balance(not sure if the p&p would come with this?!)
f) cam regrind
g)pulleys
h)flywheel and clutch

you could easily do 12psi on a 7afe it just takes the money and time to do it right and the determination to work on a 7 lol

its one of those pride things in your car......personally i think the biggest amount of pride i would have would be saying "yea thats the original motor and a 7 at that!" then "yea the original engine sucked so i swapped it out for a different one"

Good start, but It's been said that 4AGZE pistons do not reduce compression, in fact, it raises compression significantly when compressing to the 7AFE head. IF you look at the designs, it tells a whole lot why that is... so that pretty much will strike out using 4AGZE pistons to lower compression in a 7AFTE set-up. As for blueprinting and balanceing... expensive and not needed unless you're gonna heavily modify the internals. Cams also are not a necessity for a boosted motor, although it's always a nice upgrade. I personally would do things differently... but that's just me. The compression in the 7AFE is low enough and can be brought down a bit more with a thicker headgasket, that you can boost a bit higher, so long as you supply ample amounts of fuel. The weakness is in the stock rods and 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
- Delta_Phoenix   Looking for advice on performance   Sep 25, 2004 - 11:16 PM
- - Kwanza26   250 whp is a VERY ambitious goal. The 4AGZE canno...   Sep 25, 2004 - 11:33 PM
- - Delta_Phoenix   I guess I'll just get a new car then. No poten...   Sep 25, 2004 - 11:48 PM
- - Kwanza26   QUOTE (Delta_Phoenix @ Sep 26, 2004 - 4:48 AM) I g...   Sep 25, 2004 - 11:55 PM
- - Delta_Phoenix   I just want to take full advantage of the Celica...   Sep 26, 2004 - 3:25 AM
- - celicasupra209   How about this. swap your 7afe into a new/low-mi...   Sep 27, 2004 - 4:43 PM
- - Mr2swift   For starters, the 4agze will and can get to 250+ t...   Sep 28, 2004 - 11:35 PM
- - Kwanza26   QUOTE (Mr2swift @ Sep 29, 2004 - 4:35 AM) For star...   Sep 29, 2004 - 12:22 AM
- - Mr2swift   No sir, I am not talking about building the motor ...   Sep 29, 2004 - 1:59 PM
- - Kwanza26   QUOTE (Mr2swift @ Sep 29, 2004 - 6:59 PM) No ...   Sep 29, 2004 - 4:41 PM
- - celicasupra209   QUOTE (celicasupra209 @ Sep 27, 2004 - 9:43 PM) Ho...   Sep 29, 2004 - 4:44 PM
- - playr158   you don't need the gt-4 hood for the S/c i don...   Sep 29, 2004 - 4:52 PM
- - psyko   i know edo17982 is rebuilding the 7a internals (he...   Sep 30, 2004 - 9:16 AM
- - Mr2swift   QUOTE (Kwanza26 @ Sep 29, 2004 - 9:41 PM) QUOTE (M...   Sep 30, 2004 - 1:43 PM
- - Kwanza26   QUOTE (psyko @ Sep 30, 2004 - 2:16 PM) i know edo1...   Sep 30, 2004 - 1:45 PM
- - Supersprynt   He wants 160 wheel hp? thats optimistic on a 7a, b...   Sep 30, 2004 - 1:52 PM
- - Kwanza26   QUOTE (Mr2swift @ Sep 30, 2004 - 6:43 PM) Excellen...   Sep 30, 2004 - 2:06 PM
- - Delta_Phoenix   Well now that the matter of tuning the 7A came up ...   Oct 1, 2004 - 7:31 AM
- - recneps   ive seen a dyno sheet of a 7a-fte makign 160whp at...   Oct 1, 2004 - 8:15 AM
- - recneps   heres the dyno http://www.6gc.net/photo.php?file=...   Oct 1, 2004 - 8:27 AM
- - lagos   think of it this way.....what motor would give you...   Oct 1, 2004 - 9:08 AM
- - Delta_Phoenix   I've been looking around at some of the swaps ...   Oct 2, 2004 - 7:31 AM
- - Kwanza26   QUOTE (Delta_Phoenix @ Oct 2, 2004 - 12:31 PM) But...   Oct 2, 2004 - 11:33 AM
- - Delta_Phoenix   I've read about everything I possibly can abou...   Oct 3, 2004 - 4:19 AM
- - shadycrew31   i feel as though the 7a isnt getting enough credit...   Oct 3, 2004 - 6:34 AM
- - Delta_Phoenix   I'm just not too interested in boosting an eng...   Oct 3, 2004 - 11:03 AM
- - Mr2swift   QUOTE (Kwanza26 @ Oct 2, 2004 - 4:33 PM) The silv...   Oct 3, 2004 - 11:41 AM
- - playr158   "i feel as though the 7a isnt getting enough ...   Oct 3, 2004 - 12:20 PM
- - Kwanza26   QUOTE (shadycrew31 @ Oct 3, 2004 - 11:34 AM) i fee...   Oct 3, 2004 - 2:46 PM
- - shadycrew31   oh i know that with stock internals it will suck. ...   Oct 3, 2004 - 4:57 PM
- - shadycrew31   oh one more thing kwanza do you know if the 4a...   Oct 3, 2004 - 5:05 PM
- - Kwanza26   QUOTE (shadycrew31 @ Oct 3, 2004 - 9:57 PM) but i ...   Oct 3, 2004 - 6:14 PM
- - shadycrew31   i wish i had your bain kwanza. your like a toyota ...   Oct 3, 2004 - 7:05 PM
- - Delta_Phoenix   Haha, yeah he's right. The 7a DOES have 2 cams...   Oct 3, 2004 - 7:49 PM
- - playr158   couldn't we figure out a way to drive them sep...   Oct 3, 2004 - 7:55 PM
- - Delta_Phoenix   You'll have to ask Kwanza about that one. All ...   Oct 3, 2004 - 8:13 PM
- - shadycrew31   dont those cams are so small in the 7a, it makes y...   Oct 3, 2004 - 9:38 PM


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