sorry i slept in so much guys i didnt expect this to blow up so much in the morning but u east coast time guys are all over it....and yes im speaking of a k20a2 engine


for those saying high compression and better IM design i think ur false. i can kinda give u the higher compression because u know the honda engine does have higher compression, but how come no one does that with the m62? if it has proven on another engine that its possible....take ur lsj apart, run less boost and higher compression and make more safer reliable power then?

with the cooling mods out for the lsj there is no reason why it cannot destroy a k20a2 in all aspects, but it doesnt.


again against popular belief im not here to hate on the lsj, i would like to see more come from it!


and for those that say IM heres a picture of a intake manifold with the 2 laminova cores and what represents the supercharger has a yellow tape across it. pretty similar to the lsj IMO...air comes in....gets jammed down thru the laminovas then forced back upwards into the head....

 

It may not look like it... but it flows 30% higher than the LSJ manifold.


Besides that... it is indeed; compression, head and cams.
If you take away those as factors, all your left with is a block and pistons... and consider that the K20a2 shares the same internal specs (86x86) as the LSJ.

 

Atlanta = midnight club in RL.

Trust me, it isnt pretty when you see those k20 bastards twincharging and laughing at your domestic ass.....

then again they laugh at bolt on vettes too. Fricken ridiculous.

I know some places in Texas are the same way.

 

http://www.theoldone.com/archive/


talks LOTS about head design and such. Runs a M62 on a civic with a HIGH compression ratio. Very interesting site.

 

how do u know it flows 30% more than a lsj intake manifold? and i understand its compression head and cams...thats why i made this thread because everyone thinks the intake manifold is gonna be there savior when it really doesnt have much to do with it.


after my research in my opinion i would stay stock pulley, up compression, get head work done, try those gmr cams and run a **** load of cooling mods...

 

Better just redesign the head then......or WELD it to the block so it doesnt pop.

 

i ran 10 and a half compression pistons in my cobalt so i know its possible to get them in there...and a port and polish isnt redesigning a head

 

for how long and at what boost?

 

24psi and for about 1000 miles haha...but had nothing to do with the pistons..my head was over torqued on one half of the head..and cracked the sleeve

 

LOL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

sorry..that sucked. Way to pave the road for what NOT to do.

 

yea there was a huge thread about it...i got fucked by a shop who is now outta business

 

Similar design to the LHT manifold... LHT flows 30% more than LSJ according to the flow bench.
Beyond that... getting the head to the point of a K20 head is next to impossible, simply because of the flow pattern. LSJ = sharp 90... K20 = gradual sloping curve

 

ding ding ding...

i may have had the wrong thoughts about u

 

Aaaahhh... thanks?

 

 

^ Rofl!

 

its a one off manifold...lol...

 

Similar design...

 

saying similar design and making assumptions doesnt work ty..that one off is mine...and i know it flows similar to a lsj manifold.

 

The LSJ manifold flows into an angle, turns again, and is angle forced though the cores, then turns again to flow up to the outlet.

That one flows down, straight into the cores, makes one turn, and into the motor.

I think we know what flows better.... flow turns are horrible for losses.

 

sig better work this time...

ok good, anyway even if you improved the design of the IM and gave it a colder denser charge you still have flow to play with. Compressed air heats up more, and that lies with headwork. You can even see the difference when you put on a free flowing exhaust as it drop 1-2 psi.

 

ok...the problem is the intake manifold...

 

LAWLZ that explains alot... glad i only bough parts from him LOL.. that really sucks what happened to you man

 

I'd go more for a combination...

As previously stated... CSS goes in cycles... head, cams, IM, etc.
Everyone is looking for one thing.... but it's not one thing... it's a combination of a bunch of things.
So far we have solutions for the top end (head, cams), and the down stream (exhaust)... but nothing for the up stream (IM)... I think that's the next step.

 

no one has really provided a better cam IMO...and no one has provided a valuable port job that works..just cuz u port the **** out of the engine doesnt mean it works. when it comes to most race set ups on a K20 that is staying N/A they dont even touch the ports because they have the best set up for it stock.