overhalling a ka24de for KA-T

[ckamc]

Just like the title says... I know what parts I need but I am wondering what work I should get done at a machine shop for a 120k motor that I plan on making a daily driver KA-T for as long as possible.

If anyone knows any prices please let me know it will be helpful when I setup my budget.

[JayPat83]

rebuild, i bored mine over to 90mm with Wiseco 9:1 forged pistons coated also, all new oem bolts and valves and springs, shotpeened and hardened rods with ARP bolts and head studs, Cometic HP headgasket. planning on 350 whp daily at whatever psi.

[ckamc]

90? is that then a 89.5 with a .04 overbore? i havent seen any 90 pistons ever....

[rb240sx]

Top hat has your car right? reason why i know is i reconize the motor.I saw the car today and it honestly looks bad a$$!

[JayPat83]

yeah, mike is working on it for me. very glad you like. who is this? crispy?

[JayPat83]

yes 90mm pistons. i think that is only .020" over. they make 91mm ones i have seen.

oh yeah, and i've spent $5000 just on the motor.

[Tictakman]

5,000 on the motor? what else brought the price up?

Zak

[JayPat83]

rebuild, i bored mine over to 90mm with Wiseco 9:1 forged pistons coated also, all new oem bolts and valves and springs, shotpeened and hardened rods with ARP bolts and head studs, Cometic HP headgasket. planning on 350 whp daily at whatever psi.

Also my boost designs manifold, downpipe, turbo, and wastegate.

[ckamc]

Wow all my parts to do KA-T excluding getting a ka24de and machine shop work is about $4200

Edit: that also excludes all my transmission work as well

[slipnfall]

Just to give you an idea on price, I didn't have any exotic engine work done, and my labor bill was ~$740. Without looking at my invoice, it was a stock check/rebuild:

Short block tear down, hottank, 'prep', block mag'd, check pisiton bore, hone, crank magnaflux/polish, main journal line check, head recondition, surface planed, install guides, seals, valves, short block assy. ::edit:: All std OEM components BTW, no forgies or anything. ::edit::

I know I probably missed some thing. <shrug>

Anyways, to answer your question... If you want them to install new pistons, they're probably going to pull the bottom cradle, which means they may as well check your crank and rods while they're out. Replace the bearings. Make sure to get the block/head checked for cracks and 'flattness'. That's the bare minimum I would do.

Best bet is to go down and talk to them. Make it clear you want to know prices upfront, and before any work is done.

[ckamc]

thanks for the reply! yeah i guess its best if i ask them what their opinion is and have them inspect the motor

[Titan]

yes 90mm pistons. i think that is only .020" over. they make 91mm ones i have seen.

90 mm is 0.040" overbore.

Stock bore: 89 mm0.020" Overbore: 89.5 mm0.040" Overbore: 90 mm0.060" Overbore: 90.5 mm

[ckamc]

thanks for the clarification... its hard for some us that hated and didnt do well with math in school to figure it out... like me

[96240SX41]

hey jaypat, you wouldn't have an estimate on how much just the parts cost would you? I will be doing all my own labor and stuff in a shop bay of mine. . .so thats not an issue, also have one of the best mechanics in U.S. as step dad lol

[rb240sx]

Yes.? [email protected]

[JayPat83]

parts minus machining

pistons with rings and pins $400 shipped

cometic hp headgasket $100 shipped

boost designs manifold and downpipe $500 shipped

turbo and wastegate $700

ARP bolts $300 shipped

there are other things also like

custom topfeed fuel rail with FPR $200 made at machine shop

custom V-mount with a Koyo alum. radiator $900

50lbs injectors $200 shipped

3.75" apexi catback $700 shipped

3" test pipe $100 shipped

i could just keep going.............

[96240SX41]

won't have to worry about the machining. I'm trying to figure out an estimate of how much it will all be, cylinders, stuff like that. I hope to port & polish, bore it out HOPEFULLY .020 over and stroke it some. Then on with the turbo. Anyone have a top mounted intercooler, i want to keep mine as much of a sleeper as possible lol

[npaulseth]

3,75" catback? Are you planning on making 1000whp?

[JayPat83]

well that would be interesting?!?!? but no. it sounds bad ***. VERY VERY quiet if you can believe it.

[96240SX41]

looks like thats one more thing for fabricating! (top mounted intercooler)

[JayPat83]

there are lots of different things you could do. i have seen people take a black volvo intercooler, make brackets to move their radiator back enough to fit the intercooler between it and the radiator support.

also you could do a V-mount. nothing special to see there. i actually changed my mind on that just yesterday not to do it cause it will speend up my build by about three weeks. just going with a front mount now. i guess i am the opposite of you, i want my **** to be noticed, but then again my car will be very flashy i guess.

[deezlins]

won't have to worry about the machining. I'm trying to figure out an estimate of how much it will all be, cylinders, stuff like that. I hope to port & polish, bore it out HOPEFULLY .020 over and stroke it some. Then on with the turbo. Anyone have a top mounted intercooler, i want to keep mine as much of a sleeper as possible lol

i wouldnt stroke the ka anymore, too expensive too.

you can get your front mount intercooler coated like in black if you want. Swain used to make a coating that coated the intercooler black and actually helped heat transfer (dont just paint it or anything, it will make it less efficient and it wont cool as well). If you have a top mount you will have to have a hood scoop to get air to the intercooler which will take away from the sleeper look anyway. A top mount wont cool as well because its harder to get lots of air to flow through it, and it will get hot from being in the engine bay.

[ckamc]

since i could only find the cosmetic HG in a 90 bore size *which means i would need .04 overbore* what would i have then... a ka25? i cant remember the stock stroke now and forgot the formula from school that tells me how to figure it out...