Neil
Well-Known Member
- 24
- 6
I see what your saying, but there are many variables that factor in. It would be better for fullrace to explain this.
Head swap options
- Thread starter WhiteFG4
- Start date
- Staff
- #22
- 56,243
- 24,027
full race has praised the integrated manifold because there is less distance to the turbo. It'll spool up faster that way versus a header/manifold design.
8th gen ^^
9thgen below
^ wins on distance to turbo...
for people going with non-turbo setups... a head swap would obviously be an improvement seeing as how you can gain intake/exhaust vtec etc.
8th gen ^^
9thgen below
^ wins on distance to turbo...
for people going with non-turbo setups... a head swap would obviously be an improvement seeing as how you can gain intake/exhaust vtec etc.
Bulkybear
Well-Known Member
- 1,665
- 749
Ok so hypothetically speaking for us average people just bolting up a turbo on low psi and tuning it would be more cost effective vs a head swap with the 20 some odd parts hytech said needed to be swapped.
Sleepingpanda
Kung-Fu Panda
absolutely. you will gain more power. and it will be much much easier. Head swap is good for people who wish to remain all motor, and also want the 8k redline we all love. and exhaust cam VTEC
- Staff
- #25
- 56,243
- 24,027
I'd have to see what kind of numbers they're getting from the k20 head/exhaust combo...and how expensive the parts are. No clue what the 20 or whatever parts cost ...
Sleepingpanda
Kung-Fu Panda
complete K20 head will be at least 600 used, plus machining the head because youd be stupid to not at least make sure it was straight before bolting it on. plus sensors, misc hoses, custom header, oil pump, pistons, flash pro, tune.
i'm guessing in the ball park of 2000-2500 if you do the work yourself once its all said and done. and 3000-3500 if you pay a shop.
for what? maybe 70whp. and a higher redline. Sure its a substantial gain. Especially if you plan on stayin NA. But forced induction will always be easier and yield much higher results.
- Staff
- #27
- 56,243
- 24,027
without a doubt you'd have higher hp #'s going turbo... I won't argue that. I've seen a few sites that sell machined/remanufactured k20 heads for like 500. Again... it's still unknown how expensive the other parts are for the swap. 270-300hp all motor is nothing to sneeze at.
I believe the last time someone called f-r about their turbo it was like $5,5XX range. Then add flashpro, exhaust, injectors, etc...
I believe the last time someone called f-r about their turbo it was like $5,5XX range. Then add flashpro, exhaust, injectors, etc...
Sleepingpanda
Kung-Fu Panda
yea but is that complete? with valvetrain and cams?
you will still need exhaust, injectors and flashpro with the head swap.
275 all motor would be insane. but my point is that its a LOT of work. where as a turbo install you can do in your driveway with some jackstands, a friend and a six-pack.
- Staff
- #29
- 56,243
- 24,027
that was not complete... just machined - no valvetrain/cams
XdemonicfleasX
Well-Known Member
Why choose just one?
Sleepingpanda
Kung-Fu Panda
because dumping 12,000 dollars into my civic motor with 5000 miles is dumb. I'd rather buy a new motorcycle. or put a nice down payment on a BRZ and have 2 fun cars.
XdemonicfleasX
Well-Known Member
No one said you had to do it all at once
Sleepingpanda
Kung-Fu Panda
typically if you go all motor, you run 12.5:1 or higher compression.
High compression + boost = no bueno
JAYBLS
Well-Known Member
- 701
- 475
Well, because it's physically impossible to be both turbocharged and naturally aspirated.
Dar-Dar
Mordorator
- 19,329
- 9,901
- Vehicle Model
- Civic Si
- Body Style
- Fiji Blue Pearl Coupe Coolest Member Since: May 15, 2011
= bent piston rods. Lol.
XdemonicfleasX
Well-Known Member
Oh my I had no idea, thank you for your enlightenment.
JAYBLS
Well-Known Member
- 701
- 475
You are so very welcome.
XdemonicfleasX
Well-Known Member
What I was referring to, since obviously there has been some confusion, is doing the head swap then turbo. Kinda like this rsx. K24 block/k20 head. 
Though I'm sure a build like this would cost a pretty penny.
Though I'm sure a build like this would cost a pretty penny.
JAYBLS
Well-Known Member
- 701
- 475
Have you read this thread at all? The integrated header cast into the head of the K24Z7 is ideal for turbocharging. Doing a head swap to a K20 head to go turbo would be completely counter productive and one of the most fiscally irresponsible things you could possibly do.
XdemonicfleasX
Well-Known Member
Nope didn't read a damn thing
giant wings on fwd cars are also fiscally irresponsible, but yet you still see it happen.