I have a question for you guys. I have a 96 prelude vtec and I am installing a turbo and I was searching this website and trying to see how much I should bore out my block. I already sent my head out to portflow and having them do their headwork and oversizing my valves .5 mm. As well as the whole ferrea valve train. Anyways I saw one post where someone said that vince from golden eagle said to bore it out .2 mm over for turbo cars, but later on someone posted 2 mm over. Does anyone know which ones right? I been dealing with vince also at golden eagle, and he told me that he suggest the stock bore. Before I ship it out to him I wanna exactly how much to tell him. Thanks guys.

 

it's gotta be 2 mm over. 0.2 mm over is nothing.

 

Damn it Prelude Vtec 23 - do you know nothing? Noob.

Edit: Boss and Prelude- you guys can talk turbo H22 talk at the BBQ - both of you are coming if I'm not mistaken


[Modified by hybridreams, 5:30 PM 4/5/2002]

 

yep yep

 

Yeah I spoke with some other people and they said 2mm over. I also spoke with Vince and golden eagle and he said he would stick with the stock bore size, but I think I am going to go 2mm over anyways, you know what they "there's replacement for displacement". Has anyone here got there block bored out and if so do you think it was worth it.

 

yeah the above post by hybridreams was actually by me, he was still logged on and I (prelude vtec 23) posted it by accident cuz I didnt know he was logged on cuz I was using his computer.

 

I got my block back last week from Golden Eagle and it is awesome. I ordered Endyn 90mm pistons, so I ended up going 3mm over. What you read about the .2mm, was if you were using stock sleeves. The lude has a FRM that is .5mm thick, and you can safely go .2mm over on the stock sleeves without messing with the integrity of the sleeves. I can post pics of my block if you need them. When you send your block out to GE, send all four pistons also. For a charge of $125 the will bore and hone your block to match each piston. The pistons will come back numbered so you will know which cylinder to match them to. It was good I let them do it, because they had to cut a little relief out of the bottom of the block for the size of the pistons. Good luck!

 

Cool, I sending my block to them this monday to have them resleeve it and I also buying the arais pistons that they offered me. I have decided also to go 2mm over, cant wait to get it back and put it back all together. Have you installed your block yet gsr*lude?

 

prelude vtec? how much did port flow charge you for the port? and how much will GE charge you for the resleeve?

thanks

 

Portflow charged me 1750 which includes alot of stuff, port and polish, muti-angle radius valve job, deshroud valve area in chamber, polish chamber, surface. I also got the whole Ferrea valve train set, stainless steel valves $20.00 each equals $320.00, and the ferrea titainium retainer, dual valve springs, spring locator kit which was $600. Also oversizing my valves .5 mm.

The block, installing "godzilla" sleeves bore and hone out 2 mm. Plus I also getting the arias pistons they offered me, they gave me a combo package for a total of $1391.00.

I better not be dissappointed by all this work. Hopefully it will be worth it.

 

if u are boring out the block, u should enlarge the combustion chamber of the head also...no point in having the block 89mm and the head 87mm

 

good call, I emailed portflow to see if they could do that too for me as well.

 

i sent my head to portflow last week also to get all the ferrea components with 0.5 mm oversized valves...keeping the stock bore because don't have the $$$ yet to do Golden Eagle

 

what is the down time? for your block, and head... from the time you sent out ur stuff to the time they sent it back>?

thanks

 

Golden eagle was real good only 5-7 days turnaround, takes one week to ship there one week to ship back (va to ca), portflow on the other hand, same time shipping but turnaround time from once they receive is 3-4 weeks, they said that they extremely busy over there.

 

yea they told me a month

 

No I have not installed my block yet. If you want me to post some pics, I will take them and get them posted.

 

do you guys know if the stock bore is the same on the f22 and h23/22 blocks?? if so what is it?

also, if you go overbore about 2mm like prelude vtec, what else is necessary besides enlarging the combustion chamber of the head, so everything will flow prefectly??

 

H22 and H23 are 87 mm, F22 is 85mm. Besides having the block and head bored out 2mm over you also need the get a head gasket made that is 2mm over as well, but you need to send it to portflow cuz they need it when they bore out the chamber to match it to the bore size of the block. Also I was told by cosmetic gaskets (golden eagle recomended them to me for a head gasket) that I shouldnt get the o-rings installed, if I do I have to use a standard head gasket and not the high performance (hp) gasket. Golden eagle told me in bold letters in my email that the hp gasket would not work with their block, but to just get a standard gasket that is bored out 2mm and spray it w/ copper spray and it would be fine. Cosmetic gaskets told that it would be fine but only for a short time but then eventualy will start to leak unless they use copper o-rings, but that still is not a very good seal. They said putting o-rings on was like "old technology". They recomended me not getting the o-rings installed and going with there hp gasket. Well I asked my friend who works at the shop and he told me definately not to get the o-rings, just have them deck it flat and get the hp gasket. The hp gasket has shims that are made right around the edge of the bore and are a little thicker than the rest of the gasket that when the head and the block are torqued right it seals up perfectly. Damn!! Like I said b4 it always always the little stuff that takes the longest!!

 

Golden eagle told me in bold letters in my email that the hp gasket would not work with their block, but to just get a standard gasket that is bored out 2mm and spray it w/ copper spray and it would be fine.

you mean GE said the hp gasket would not work on their block with the o-rings right?

thanks for the great reply!


[Modified by accordfreak, 6:49 AM 4/11/2002]


[Modified by accordfreak, 6:52 AM 4/11/2002]

 

Forget the O-ring and get a Cometic headgasket. It is awesome and cheaper than most you will find.

 

Thats exactly what ge told me, that "cometic hp gasket is not compatible w/ their block" bcuz of the o-rings. So bore it out, do NOT install the o-rings have them deck it flat, get the hp gasket and you all set.

 

Yup, and I think Race Engineering has the cheapest price on the headgaskets. Another plus with Cometic is you can order the head gasket to the size of the bore, it is an awesome product!