[K4NEB]

so what are we saying with aftermarket forged rods and pistons?

what do we need to do to take a k24 to 9k safely?

 

[dantok]

To be honest. Revving a k24 at 9000 is like 9500
Or something like that to a k20. Hence I rather have the reliability of the engine really.

 

[alexEF]

mine is 06 stock with bolt-ons and type-s pump and revving it up to 9k no issues.

 

[dantok]

Forgot to mention i`m turbo charged with 20psi of boost as well.

 

[K4NEB]

To be honest. Revving a k24 at 9000 is like 9500
Or something like that to a k20. Hence I rather have the reliability of the engine really.

yes i know this thats why im asking how far you can safely rev an NA k24 with forged internals.

not boosted as ive just seen your latest comment

i wouldnt want to rev to 9 with boost

 

[tinman5]

Damn.
Wish I was playing with the big dogs.
Bolt on K24A2,6 speed,stock oil pump, Kpro'ed in an EP3 redline set to 7600 and shift light goes off at 7200.

 

[Joe McCarthy]

Revving a K24 to 9,000 is just like revving a K20 to 10,400 if you're talking about relative piston speeds.
Revving that Toyota F1 engine to 18,000 is like revving a K24 to 8,000, and the F1 engine has the best Titanium rods in it that money can buy.

 

[K4NEB]

Revving a K24 to 9,000 is just like revving a K20 to 10,400 if you're talking about relative piston speeds.
Revving that Toyota F1 engine to 18,000 is like revving a K24 to 8,000, and the F1 engine has the best Titanium rods in it that money can buy.

damn.

 

[alexEF]

just want to update this thread since i made a record for myself in a local 1 mile competition in a 4 cylinder all motor.

RSX K24a2 jdm version straight swap
port and polish head
90mm TB and IM
ASP Header
3.5 intake
RC 440 injectors
fully tuned
street gas

i'm revving my car upto 9k for 2 years now plus yesterday after fully tuned and still kicking!

 

[BOMrsxS]

This thread made me laugh. Its funny reading all the shit that people were spewing out of their mouths(or fingers really) 4+ years ago. I guess I'll add something to make my post informative too.

k20z1 head
stock valve train except for flat face valves
Kelford Type A cams
RBC manifold

k24a1 block
08 TSX rods
09 TSX pistons
oem bearings
oem tensioner
k20z1 oil pump with upgraded spring
rotating assembly was all balanced

Motor was built and tuned by D-Rob back in 2011, redline has been set to 8k since day one. I rarely take it up that high but there's never been a problem when doing it. Off the top of my head I'd say there is somewhere between 25-30k miles since the motor was installed and tuned.

 

[alexEF]

You should try 9k it is fun! Lol


Sent from my iPhone using Tapatalk

 

[SickSilver_ep3]

This thread made me laugh. Its funny reading all the shit that people were spewing out of their mouths(or fingers really) 4+ years ago. I guess I'll add something to make my post informative too.

lots of topics that are years old usually have some good reads in the first couple pages. :qft:

 

[anthonyfa18]

k24a4 rods and 09 tsx pistons type-s oil pump and type-s head and cams, 8k for almost a year. i have some 09 tsx rods siting around that im going to through in with some stg2 cams so probibly going to be reving to 8.5k after instaled

8000 rpm on stock k24a4 rods :wwhat: i thou it would never last

 

[CHILD]

haven't been up and running as long as most but, 10 months so far on my bolt on 06 K24a2 with redline at 8100rpm and daily driven since day one and running fine. Stock tsx oil pump and all

 

[donsep3]

k20 head
k24 with 05 tsx piston and rods
modded a2 pump
revving to 8k on 93 pump and 8200 on e85.

 

[GoThanh]

Any road racers inputs? Because that will tell a lot more then most street driven situations who revs to the limit few times during a ride. Road racers is like 20 min to 30 min hardcore beating the engine.

 

[4doortypeR]

07 Tsx Motor stock oil pump
With boltons
Motor in My Dc2 R 1 year
Redline 7,800
Beat on it regular, no issues so far

 

[AWH]

Any road racers inputs? Because that will tell a lot more then most street driven situations who revs to the limit few times during a ride. Road racers is like 20 min to 30 min hardcore beating the engine.

Road course experience here...lessons learned the hard way:

On stock internals, I rev limit at 8000 and typically upshift at 7600-7800.

On forged internals, I rev limit at 8500 and upshift at 8100-8300.

In addition to correct build tolerances, oiling and tune are critical to keeping pistons happy. I've cracked both OE and forged piston skirts. With the forged stuff running at those revs, I still see some cylinder bore wear near the top over time and still go through engines.

Simply running 2-300 rpm less than those #'s above will increase longevity dramatically on a motor that rarely sees less than 5000 rpm.

 

[GoThanh]

Hmmm ok good to know, how long are your sessions? And do you run an external oil cooler?

 

[AWH]

Hmmm ok good to know, how long are your sessions? And do you run an external oil cooler?

K20A2 OE oil cooler only.

typically 30 minutes at a time.

Oil quality is important for constant high revs and longevity. POE only (Redline, AMSOIL, etc.) Not Mobil 1.