Re: toyota 7afe
Yes your pic quality does sucks. Wait car is auto/ boosted WTF ??? I say time to do a 5-speed swap. Oh BTW ring lands own you. :6
|
Re: toyota 7afe
Originally Posted by crxvtec91
Yes your pic quality does sucks. Wait car is auto/ boosted WTF ??? I say time to do a 5-speed swap. Oh BTW ring lands own you. :6
rings lands.. oh is that the technical name for that area.. http://img84.imageshack.us/img84/523...ouknow1oj7.jpg |
Re: toyota 7afe
Ringlands are the grooves around the circumference of the piston which seat the rings. These are typically the weakest part of the piston becuase the metal is the thinnest in between these grooves. Ringlands can crack and break when too much pressure (often from boost) is put through the piston. Your compression goes to hell due to this, and you'll usually comsume a lot of oil.
Get new pistons. |
Re: toyota 7afe
If i was you I would take this as a chance to improve on my motor and build a 7age which if you don't know is a 7afe block and crank with 4age pistons and a 4age head. Go look on mr2oc.com for more info because it makes a decent little upgrade and its cheap if your already doing a rebuild
|
Re: toyota 7afe
ive broken ringlands on at least 4 stock pistons in my boosted 4ag. i just upgraded to gze pistons to cure the problem. why dont you just do a 4ag swap from an mr2, the gze pistons swap right in and only cost about 200 bucks (8:1 forged and ceramic coated).
|
Re: toyota 7afe
Originally Posted by turbo4age
ive broken ringlands on at least 4 stock pistons in my boosted 4ag. i just upgraded to gze pistons to cure the problem. why dont you just do a 4ag swap from an mr2, the gze pistons swap right in and only cost about 200 bucks (8:1 forged and ceramic coated).
the 4ag pistons are full floating? and also read it will increase CR to 11.something? :3 |
Re: toyota 7afe
not true.
check my www.whyturbothat.com my buddy from tucson. he'll try anything. you can go to the junkyard and get the 4ag head harness and ecu for dirt cheap. if not you can find it all online for dirt cheap. people practically giving it away. just go 7age. read that write-up on the website link. its pretty informative. |
Re: toyota 7afe
the only 4age that is 11:1 is the black top 20v. fitting those pistons below a 16v head (45deg included valve angle) will probably give you lower than 11:1 compression. I have to say, I'm impressed that your 7afe rods took 15psi with what is obviously a non optimal tune. they are pencil thin things aren't they. Good to know they can take it. I have a 7afe car outside that I may fiddle with at some point.
|
Re: toyota 7afe
Well yesterday(4-25-08) i got my block and head back from the machine shop.
i think i'm getting better at talking pics with this $50 dollar camera i couldn't resist the urge to paint it :6 http://img293.imageshack.us/img293/9...14largerk3.jpg allow me to reintroduce the 7A http://img329.imageshack.us/img329/6...15largeld7.jpg http://img245.imageshack.us/img245/4...16largehe0.jpg http://img244.imageshack.us/img244/9...17largehv1.jpg in the pics it looks like i missed some areas http://img242.imageshack.us/img242/3...18largekk8.jpg http://img241.imageshack.us/img241/6...19largegy1.jpg http://img137.imageshack.us/img137/6...20largebf0.jpg http://img241.imageshack.us/img241/9...21largevp2.jpg http://img294.imageshack.us/img294/9...22largecq1.jpg - http://img244.imageshack.us/img244/8...24largecw7.jpg el cheapo ITM pistions http://img137.imageshack.us/img137/7...25largexw9.jpg http://img100.imageshack.us/img100/2...26largehp1.jpg http://img245.imageshack.us/img245/4...27largepz9.jpg http://img294.imageshack.us/img294/4...28largepz9.jpg http://img293.imageshack.us/img293/1...29largedl8.jpg http://img241.imageshack.us/img241/6...30largeio7.jpg http://img293.imageshack.us/img293/2...41largeiz2.jpg http://img242.imageshack.us/img242/7...42largebs8.jpg http://img293.imageshack.us/img293/2...43largebn7.jpg http://img210.imageshack.us/img210/6...44largejf6.jpg - http://img242.imageshack.us/img242/4...46largexq4.jpg this is where the magic happens http://img329.imageshack.us/img329/3...47largetw4.jpg - http://img329.imageshack.us/img329/4...49largezn4.jpg http://img137.imageshack.us/img137/3...33largefl3.jpg @ http://img293.imageshack.us/img293/1...31largeyf3.jpg http://img244.imageshack.us/img244/8...32largeci9.jpg @ http://img244.imageshack.us/img244/1...34largecw5.jpg http://img245.imageshack.us/img245/9...35largesz4.jpg http://img244.imageshack.us/img244/4...36largeuj6.jpg http://img294.imageshack.us/img294/6...37largeyw3.jpg http://img293.imageshack.us/img293/4...38largemf1.jpg http://img294.imageshack.us/img294/4...39largecj0.jpg the turbo came off of a volvo - anybody know if this is a standard 5 bolt down pipe flange? so i can buy something like this http://i35.photobucket.com/albums/d198/bre..._flange_obx.jpg and go external wg? http://img210.imageshack.us/img210/6...40largeng0.jpg |
All times are GMT -5. The time now is 05:18 AM. |
© 2024 MH Sub I, LLC dba Internet Brands