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Old 11-06-2008, 09:25 PM   #1
70NYD
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Turbo

i was just reading over the threads about the bpt conversion and am just wondering. wouldn it b easier to get the bpt and use its crank + rods + pistons n other stuff n put them in the bp engine while its still in the car? or mayb even get some aftermarket parts if they even exist. or is our poor little bp block just too weak to handle the stresses?
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Old 11-06-2008, 09:37 PM   #2
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wouldn it b easier to get the bpt and use its crank + rods + pistons n other stuff n put them in the bp engine while its still in the car?
I think to replace cranks/rods etc you need to remove the engine?
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Old 11-06-2008, 10:55 PM   #3
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so u cant just get the car up on a hoist n drop the sump?
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Old 12-06-2008, 06:31 AM   #4
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no pistons will not come out the block from the bottom
you have to remove the head to get pistons in or out

and your better off just turboing your N/A if you thinking of using stock BPT parts, waste of money trying to build a stock BPT

spend up an get aftermarket bits
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Old 12-06-2008, 08:51 AM   #5
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Originally Posted by dave0r View Post
no pistons will not come out the block from the bottom
you have to remove the head to get pistons in or out
ye na i knew that i just didnt mention it sorry bout that


Quote:
Originally Posted by dave0r View Post
and your better off just turboing your N/A if you thinking of using stock BPT parts, waste of money trying to build a stock BPT
spend up an get aftermarket bits
i dont get what u mean by this part at all. do u mean its better to get aftermarket parts 4 the BP or to get a BPT then get parts 4 it sorry man could you clarify this a bit
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Old 12-06-2008, 05:44 PM   #6
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Originally Posted by dave0r View Post
no pistons will not come out the block from the bottom
you have to remove the head to get pistons in or out
odd, i pulled mine almost right out when i changed the bottom end bearings, there was nothing stopping them coming out except my hand holding the rod up?

you dont need to pull the engine to change the crank.

Ps. anyone know what a BP motor weights? working out how hard it'll be to pull the engine this hols and re-condition it
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Old 12-06-2008, 08:52 PM   #7
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iam pretty sure u need to take the head off to put the pistons back in but cus of the rings cus iv always done them top down with the squeezing tool and a soft hammer ..
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Old 12-06-2008, 09:42 PM   #8
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i've heard as long as you're careful you can do it from the bottom. i know my uncle did it with his old hold and dad's done it with a few cars. he also said if you're careful you can use original spec rings and not have to hone the cylinders to remove the lip.

i've only ever done it from the top. i was changing the big end bearings (after i chewed them up , apparently my car does not have a rev-limiter, unless its like 9000rpm lol) and i was tempted to pull a piston out and check it all over. i don't see any reason you couldn't do it from the bottom on the astinas
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Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall, torque is how far you take the wall with you.

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Old 13-06-2008, 12:27 PM   #9
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yea point well taken, but like i was saying on the start of this thread, is there a difference between BP block and a BPT block, or is it the same block diff internals? cus if its same il make stuff fit in there
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Old 13-06-2008, 04:10 PM   #10
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i just used the search tool and got my old thread:-

http://www.astinagt.com/forums/showt...ight=bpt+block

all the info you require is in that thread... it should be a sticky.

i kept all the banjos and feed lines from my BPT, just in case i wanna convert my BP to turbo.

the block, rods and crank are the same on both BP and BPT.
the 94 onwards crank is lighter and stronger and allows for the bigger oil pump.
the 94 onwards block did not have screw attach points for the oil and water feed lines.

ryan
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Old 13-06-2008, 04:48 PM   #11
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thanks man ur a legend. il b hunting for some parts soon then i wanna make my little baby go faster XD
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Old 14-06-2008, 05:05 PM   #12
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Quote:
Originally Posted by DavoAust View Post
odd, i pulled mine almost right out when i changed the bottom end bearings,
Well you didnt pull far enough..they DONT pull out the bottom, the bearing supports dont no allow the pistons to pull thru

and 70NYD
just turbo your BP dont worry about a BP to BPT strip down. your wasting your money...
you'll get MORE power from a BP..and since the BP uses the same conrods and cranks as the BPT...been done millions of times


if you have losta money..strip you BP and build a MEAN as custom BPT engine
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Old 14-06-2008, 08:34 PM   #13
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haha thx dave, i dont have lots of money but. if i did id probably put a 26b in it seriusly tho dont i need differnt pistons at least. or just wack a turbo on there??
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Old 14-06-2008, 09:30 PM   #14
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If you go down the rebuild BP route I have a GTX intake manifold you can have for $50. Doesn't have the VICS stuff in it.
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Old 14-06-2008, 09:32 PM   #15
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cheers mal but im just enquiring atm, cus i dont have money (my account is -ve acutally ) but i like knowign sht waaay b4 i dive head 1st. but if u still have the manifold in a few months time id b happy to take it off ur hands
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Old 25-07-2008, 10:17 AM   #16
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Quote:
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If you go down the rebuild BP route I have a GTX intake manifold you can have for $50. Doesn't have the VICS stuff in it.
I Will take it off your hands for that price if you still have it
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Old 30-07-2008, 04:56 PM   #17
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thanks man ur a legend. il b hunting for some parts soon then i wanna make my little baby go faster XD
keep us posted about the turbo conversion!
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Old 30-07-2008, 05:35 PM   #18
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will do when it happens finaly. way its lookng now, i prob wont do it for a few years due to insurance purposes, as much as id love to do it this year
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Old 18-08-2008, 10:25 AM   #19
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Mate Insurance isn't that different i don't think...
Just go with Just Cars... Anyways
I thought the compression between these 2 engines was different...
Don't you have to change the head gasket to change the compression or something along thoughs lines... That or the pistons... I just rememeber reading a post on fl.com about this and it was something like that anyways...
I would still be looking in to it ay...
Anyways

Elliott
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Old 18-08-2008, 03:18 PM   #20
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i think the BPT runs lower compression pistons, but you'd be looking at aftermarket pistons for a BP anyway (and rods too!)
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Understeer is when you hit the wall with the front of the car and oversteer is when you hit the wall with the rear of the car. Horsepower is how fast you hit the wall, torque is how far you take the wall with you.

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