Measurements for Mahles

[bajan_speed]

Hi Everyone,

I've been following this site for a while as a guest and it really helped me with my n/a build but now I have decided to go turbo. The thing is I have purchased all the necessities. Apexi pfc is on the way, I already have neukin manifold, gt28rs, fmic, 255lph fuel pump, 630cc injectors, hks ssq bov etc...i've decided to stay with the stock rods but my problem lies with pistons.

From reading the forums the bores need to be measured to see if they are in spec to fit the mahles but this can only be done when the head is off. This may seem like a wierd question but I already had the mahle 12.3:1 pistons in my block for about 9 months for my n/a build...does this mean I can assume the 9.0:1s will fit as well? Are they basically the same diameter etc? I really don't want to buy the mahles then realize they are not going to work and I could have bought the wisecos and sleeved from the beginning plus my car is a dd.

[Smaay]

you have been running the 12.3 pistons for 9 months? well in theory you might be ok. but again just to be safe check the bores. its all coming apart anyways. if there is any scouring on the walls then i suggest sleeve and go wiseco. so dont buy the pistons untill you get in the block

[sillycar09]

sleeve the block need about 1000usd ??
My country charge me about that cost :(

[bajan_speed]

wow...that is pretty steep sillycar I don't know how much it would be to sleeve here but if i need to I was thinking of getting a block ready sleeved from MWR. Yeah smaay I have had a full n/a build for about that period of time...mahles, piper stage 2 cams, mwr flat faced valves, titanium retainers, mwr valve springs etc. the pistons will be the last things i get then

[bajan_speed]

Well guys I went ahead and got the 9.0:1 Mahles. I am hoping they fit...in theory they should if not I will sleeve. Below is what I have in parts so far...I will get a few pics up when I get home and I access my desktop...right now I am in Orlando and I have an early morning flight tommorow

Walhbro 255 lph fuel pump (2zzge connector and hardware included) (MWR)
Black Tial 44mm Vband external wastegate (MWR)(0.5 bar ~7.3 psi) vent to atmosphere (screamer pipe)
Garrett GT28RS Ball Bearing Turbo
Front Mount Intercooler w/ 3' inlets (FMIC)
Neukin Manifold
Header wrap (Heat Shield) with steel cable ties
52mm Oil temp, Oil press gauges (Already installed from my n/a build)
52mm AEM Wideband UEGO gauge type controller (Already installed from my n/a build)
52mm Glowshift EGT Gauge
AEM Tru Boost gauge controller
Autometer 2614 Z series Boost gauge 30hg-30psi
Apexi Turbo/NA timer (Already installed)
HKS SSQ BOV
M8x35mm 1.25 pitch steel studs, high heat nuts and lock washers
NGK Spark plugs
MR-S Spyder Helical LSD
MWR LSD Install Kit (Bearings)

(Oil Feed and Oil return/drain accessories)
-4AN Braided Line (oil feed)(5ft)
-(2)6AN Braided Line (coolant)(4ft each)
-10AN Braided Line (oil drain)(5ft)
1/2 npt to -10AN fitting
-4AN fitting for GT28 with oil restrictor
oil drain flange SS
-10AN oil drain fitting
-6AN fittings
-4AN 45 fitting

Wilwood BBK
MWR 630cc injectors p&p
Tial Flange - T25/T28 Std/Ball bearing Discharge
MWR 2ZZ rod bearings std.
MWR ARP header studs 2ZZ
MWR ARP main studs 1ZZ/2ZZ
Mahle forged 9.0:1 pistons (82.0mm) (MWR)

I decided to keep my stock main bearings and rods. I already have some other goodies installed in my car from my n/a build

I still need CWK oil pump gears, a return line setup with FPR, oil cooler, and oil catch can. I am pretty excited about this build so wish me luck. I should have the last bits by next month and be ready to start.

[youngxlos]

^^^ you obviously dont seem to listen, it would have been better if you would of measured the block before buying anything.

[bajan_speed]

^^^^
Well guys I went ahead and got the 9.0:1 Mahles. I am hoping they fit...in theory they should if not I will sleeve.


You need to read what I said before youngxlos you can still sleeve with Mahles. As smaay said it is still coming apart and if the Mahles can fit then why not use them...I can afford to take the risk

[youngxlos]

^^^^



You need to read what I said before youngxlos you can still sleeve with Mahles. As smaay said it is still coming apart and if the Mahles can fit then why not use them...I can afford to take the risk
again your not thinking, if your going to sleeve the best option would be wisecos.
its your money do what you wish with it.

[bajan_speed]

if your going to sleeve the best option would be wisecos.

This is true but as I said there is nothing wrong with using the Mahles

its your money do what you wish with it

Once again this is true...thanks for your input

[sillycar09]

Yeah ~ If sleeves better go for wiseco... more lighter than mahle...
But..this owner plan to go 9.1cr... wiseco just have either 8:8.1 or 10.5cr dont have 9.1cr... So..he dont have other choice ~:p: go for MAHLE PISTON

[bajan_speed]

That is another reason for the Mahles I don't want below 9:1 and I don't want to run higher compression because it would limit my boost. Hope your progress goes well sillycar

[sillycar09]

Thanks ! Bajan !! Good Luck to you too !! :D

[bajan_speed]

Just realized I can't post my pics because I can't upload attachments :confused: :( oh well all other posts will just be updates on my progress

[youngxlos]

get a photobucket account and upload there then just post the links here

[bajan_speed]

cool

[bajan_speed]

Well here are some pics or at least the link to the album. I'll upload more as the time goes on

http://s976.photobucket.com/albums/ae246/bajan_speed/

[bajan_speed]

Ok guys the car is going to get the work done from this weekend. The CWK oil pump gears, oil cooler, and oil catch can have been purchased. I will update as we work

How is your break in going youngxlos?

[Smaay]

actually i think MWR can get wisecos in any CR you want now

[bajan_speed]

That would have been great if I knew that a bit before but that would mean sleeving and I just am not too trusting of the people that do that work here where I live.

[monkeywrench]

actually i think MWR can get wisecos in any CR you want now

Correct. We keep a good variety on the shelf but custom is available. 4-5 week wait for custom.

[bajan_speed]

Guys just to let everyone know...the 9.0 mahles fit perfectly. The upgraded rod bearings have been installed as well as the arp bolts and cwks oil pump gear.

The intercooler has been fitted just have to get the turbo installed, intercooler piping and exhaust done. Pics soon to come...oh i also realized one of my rods had a slight bend. The piston itself isn't damaged but I found it strange...everything else was ok

[Smaay]

i hope you didnt use it

[bajan_speed]

Of course not. The thought never entered my mind, it was replaced with a brand new one from the toyota dealer

[sillycar09]

Wow.. Good Luck !! :)

[evilthorne]

I love the look of those runX. I wish we had them up here. Also your pretty lucky the PFC works on them. Are your ECM pinouts different then the celica?

Also one other question, what are the tolerances for piston to wall clearance for Mahles pistons to be a direct drop in?

[bajan_speed]

Actually the pfc works but with some issues like no a/c the engine fan didn't work and some other minor things. The pinouts are different than the celica so I had to have an adapter harness made now every thing works. I got it from SuperDave he is a member on here.

The tolerances I got from the instructions in the box as well as on this site. I can't remember the thread or exact numbers and I don't want to tell you the wrong thing

[bajan_speed]

It is mentioned in this thread

http://www.newcelica.org/forums/showthread.php?t=315544&highlight=mahle+specs

[bajan_speed]

Smaay also talks about them here

http://www.newcelica.org/forums/showthread.php?t=258578