 4agze pistons ina 7afe???, will they fit? |
 Apr 21, 2005 - 3:47 PM
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 Enthusiast  Joined Oct 10, '04 From New Jersey Currently Offline Reputation: 0 (0%)  |
I herd from a few ppl that 4agze pistons will fit in the 7afe, only thing is is that i thought the 4agze was a 1.6 and being that the 7afe is a 1.8 how would they fit?? Would the 4agze pistons be too small??
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Apr 23, 2005 - 11:14 PM
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 Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
The difference in compression between the two engines is because of the head, so even using 4AGZE pistons ends up with high compression.
I haven't done this personally but I know several people that are running 7AGEs with 4AGZE pistons. -Doc -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Apr 24, 2005 - 2:15 PM
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 Enthusiast Joined Oct 28, '02 From Europe, Lithuania Currently Offline Reputation: 8 (100%) |
WRONG.
The diffetrence is not only in heads, the difference is in pistons - 7A pistons are DISHED, GZE almost flat, with the dished valve places. Pistons are the same height, but the difference is in these 10 cc that 7A piston Dish has. QUOTE(raven_101 @ Apr 23, 2005 - 9:14 PM) The difference in compression between the two engines is because of the head, so even using 4AGZE pistons ends up with high compression. I haven't done this personally but I know several people that are running 7AGEs with 4AGZE pistons. -Doc [right][snapback]277046[/snapback][/right] -------------------- Ex celica owner - just a guy from other side of the pond...
Full custom Projects from restoration to performance builds <<<<<< DCw / JDMart >>>>>>> |
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Apr 24, 2005 - 3:36 PM
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Enthusiast Joined Mar 31, '04 From Summerville, SC Currently Offline Reputation: 5 (100%) |
QUOTE(doGGy @ Apr 24, 2005 - 7:15 PM) WRONG. The diffetrence is not only in heads, the difference is in pistons - 7A pistons are DISHED, GZE almost flat, with the dished valve places. Pistons are the same height, but the difference is in these 10 cc that 7A piston Dish has. [right][snapback]277244[/snapback][/right] Think about what you're saying. If you swap the GZE pistons in, the compression goes up. Why is this not the case when you use the GE head? Because of the combustion chamber. Yes, the piston of the 7AFE is dished, which is part of it (I should have added that), but we're talking about using GZE pistons in a 7AFE. When you use 4AGZE pistons in a 7AFE with a 7AFE head, the compression goes up. When you use 4AGZE pistons in a 7AFE with a 4AGE head, the compression goes down. Why? Because the head is different. End of story. I wonder what the compresssion ratio would be in a 4AGE using 7AFE pistons?! -------------------- -Dr Tweak, 6GC's resident engine swap wiring expert extraordinaire Click here to see my swaps drtweak@phoenixtuning.com |
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Apr 24, 2005 - 3:39 PM
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Enthusiast Joined Oct 28, '02 From Europe, Lithuania Currently Offline Reputation: 8 (100%) |
here im talking about 7AFE with GZE pistons. Not the 7AGE. And CR with GZE pistons in 7AFE will be 10.8 if not using oversized pistons. With 82 Bore, and GZE pistons, the CR is at 11.02. This been proved on Edos car. As on stock 7A, you can count the CR, it will be 10.8 without overboring.
As for head swap, yes, the combusion chamber on GE head is bigger then on 7A, so the CR will drop noticibly. QUOTE(raven_101 @ Apr 24, 2005 - 1:36 PM) QUOTE(doGGy @ Apr 24, 2005 - 7:15 PM) WRONG. The diffetrence is not only in heads, the difference is in pistons - 7A pistons are DISHED, GZE almost flat, with the dished valve places. Pistons are the same height, but the difference is in these 10 cc that 7A piston Dish has. [right][snapback]277244[/snapback][/right] Think about what you're saying. If you swap the GZE pistons in, the compression goes up. Why is this not the case when you use the GE head? Because of the combustion chamber. Yes, the piston of the 7AFE is dished, which is part of it (I should have added that), but we're talking about using GZE pistons in a 7AFE. When you use 4AGZE pistons in a 7AFE with a 7AFE head, the compression goes up. When you use 4AGZE pistons in a 7AFE with a 4AGE head, the compression goes down. Why? Because the head is different. End of story. I wonder what the compresssion ratio would be in a 4AGE using 7AFE pistons?! [right][snapback]277274[/snapback][/right] -------------------- Ex celica owner - just a guy from other side of the pond...
Full custom Projects from restoration to performance builds <<<<<< DCw / JDMart >>>>>>> |
Posts in this topic
StreetRacing10PSI 4agze pistons ina 7afe??? Apr 21, 2005 - 3:47 PM
nik QUOTE(StreetRacing10PSI @ Apr 21, 2005 - 1:47... Apr 21, 2005 - 4:03 PM StreetRacing10PSI ok thanks, thats exactly what i needed to know. il... Apr 21, 2005 - 4:07 PM
nik QUOTE(StreetRacing10PSI @ Apr 21, 2005 - 2:07... Apr 21, 2005 - 4:11 PM doGGy Ehm.... from 9.5 till 10.8 on stock bore to be exa... Apr 21, 2005 - 4:15 PM nik QUOTE(doGGy @ Apr 21, 2005 - 2:15 PM)Ehm.... ... Apr 21, 2005 - 4:25 PM Hanyo have we figured out how to connect the 4a pistions... Apr 21, 2005 - 6:59 PM Kwanza26 QUOTE(Hanyo @ Apr 21, 2005 - 11:59 PM)have we... Apr 22, 2005 - 2:00 AM Hanyo so basically take the rod to a machine shop. and t... Apr 22, 2005 - 8:19 AM playr158 ok we have rods covered
but where do we find the... Apr 22, 2005 - 10:01 AM nik QUOTE(playr158 @ Apr 22, 2005 - 8:01 AM)ok we... Apr 22, 2005 - 10:31 AM playr158 7afe Apr 22, 2005 - 10:40 AM nik QUOTE(playr158 @ Apr 22, 2005 - 8:40 AM)7afe
... Apr 22, 2005 - 11:04 AM playr158 just stick with new stock valves then Apr 22, 2005 - 11:15 AM nik QUOTE(playr158 @ Apr 22, 2005 - 9:15 AM)just ... Apr 22, 2005 - 11:20 AM playr158 yea i really don't tend to change the size jus... Apr 22, 2005 - 12:29 PM nik QUOTE(playr158 @ Apr 22, 2005 - 10:29 AM)yea ... Apr 22, 2005 - 12:39 PM playr158 well if you told me nik i would have gone in on r... Apr 22, 2005 - 5:24 PM StreetRacing10PSI Yea, I am looking at new rods too. I think I am go... Apr 22, 2005 - 9:26 PM Dr_Tweak Using 4AGZE pistons in a 7AFE will give you 11:1 c... Apr 23, 2005 - 4:06 AM nik QUOTE(raven_101 @ Apr 23, 2005 - 2:06 AM)Usin... Apr 23, 2005 - 6:49 PM playr158 you pulled those numbers from where? Apr 23, 2005 - 10:05 AM playr158 exactly ^^ Apr 23, 2005 - 6:51 PM Kwanza26 QUOTE(raven_101 @ Apr 24, 2005 - 8:36 PM)Thin... Apr 24, 2005 - 7:33 PM playr158 ok basically all we need to know is
4agze pistons... Apr 24, 2005 - 9:07 PM StreetRacing10PSI all i really wanna know is what do i have to do to... Apr 24, 2005 - 9:14 PM Kwanza26 It'll raise your compression to higher than st... Apr 24, 2005 - 9:47 PM StreetRacing10PSI ok, so i get my turbo probly some time this week o... Apr 24, 2005 - 9:52 PM playr158 you can boost a 10:1 cr fine at 10-15psi you just ... Apr 24, 2005 - 9:57 PM Kwanza26 QUOTE(playr158 @ Apr 25, 2005 - 2:57 AM)you c... Apr 25, 2005 - 2:39 AM nik QUOTE(playr158 @ Apr 24, 2005 - 7:57 PM)you c... Apr 28, 2005 - 10:44 AM StreetRacing10PSI i no, i posted a pic in the off topic forum i thin... Apr 24, 2005 - 10:16 PM Dr_Tweak The answer to your question is in this thread. But... Apr 25, 2005 - 3:03 AM playr158 well then thank you for the piston link
i knew goi... Apr 25, 2005 - 7:18 AM playr158 oh and just so we get the line down
i refuse to sw... Apr 25, 2005 - 7:20 AM nik QUOTE(playr158 @ Apr 25, 2005 - 5:20 AM)oh an... Apr 28, 2005 - 10:46 AM playr158 well then i better make sure i have an aluminum ra... Apr 28, 2005 - 2:30 PM nik QUOTE(playr158 @ Apr 28, 2005 - 12:30 PM)well... Apr 28, 2005 - 2:35 PM playr158 i'm not a big fan of half rads i'd rather ... Apr 28, 2005 - 2:44 PM nik QUOTE(playr158 @ Apr 28, 2005 - 12:44 PM)i... Apr 28, 2005 - 3:08 PM playr158 i would say that the invader front we're both ... Apr 28, 2005 - 6:26 PM nik QUOTE(playr158 @ Apr 28, 2005 - 4:26 PM)i wou... May 2, 2005 - 9:07 AM 94ST2 OK I read through the post and we have seemed to h... Apr 28, 2005 - 11:14 PM playr158 already been convered
you have two options
low ... Apr 29, 2005 - 8:36 AM 94ST2 How much would the pistons and rods run? May 1, 2005 - 11:40 PM Kwanza26 QUOTE(94ST2 @ May 2, 2005 - 4:40 AM)How much ... May 2, 2005 - 12:23 AM 94ST2 Yeah I was figuring around that much thanks. May 2, 2005 - 12:28 AM playr158 QUOTE(nik @ May 2, 2005 - 9:07 AM)QUOTE(playr... May 2, 2005 - 11:06 AM nik i just want it to look clean and not have 4' o... May 2, 2005 - 11:50 AM playr158 well you shouldnt see most of the hose since it wi... May 2, 2005 - 12:36 PM normality78 bro's,
so may i assume that if i wanna build ... Oct 29, 2005 - 1:57 AM playr158 7age? your doing a head swap or a 7afe?
if your b... Oct 29, 2005 - 2:07 AM normality78 Tks dude.
Well engine has been open apart to chec... Oct 29, 2005 - 11:30 PM playr158 cause its an econobox head Oct 30, 2005 - 2:59 PM doGGy K, time to write it again.
As i know for now im t... Oct 30, 2005 - 3:35 PM Dr_Tweak QUOTE(doGGy @ Oct 30, 2005 - 8:35 PM)K, time ... Oct 30, 2005 - 11:32 PM doGGy CR ratio was CONFIRMED like 10 times already, but ... Oct 31, 2005 - 3:17 AM nik I'M WITH DOGGY on this one it has been covered... Oct 31, 2005 - 3:52 PM Dr_Tweak Well sorry I asked, but every single time I tell p... Nov 1, 2005 - 12:48 AM nik QUOTE(Dr_Tweak @ Oct 31, 2005 - 10:48 PM)Well... Nov 1, 2005 - 10:57 AM |
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