I recently purchased an ITR.
The car has no engine or transmission, however I do have a B18C5 block to build. The other thing is that I was in the middle of building a K24A4 to experience what legit all motor power feels like. I just don't know which engine to go with.

So, here is the question:

Would you build a nice reliable 200+whp B18C5? or
Would you build a monstrous 300+whp K24A4 instead?



What Would You Do?

 

Neither

 

But why?

 

Lol. Depends on what the car is intended for. I like oem for reliability purposes.

 

K series. If the original motor was still there then I would leave it there, but since you're buying a shell then it really doesn't matter anymore. Even if you replaced it with another b18c5, it still wouldn't be worth as much without the original motor and trans.

 

THIS ^^^

 

As much as I am a B-series fan, the K is just a better all around engine, and MUCH cheaper to mod for power.

K24A4 all the way.

 

keep the b18c5 for the R
go buy a civic and swap the k
end of story

 

K series, because it has more torque, for street driving.

 

You'll need a true vtec head on that k24a4 to Make 300 whp.

 

K swap FTW!!

 

Civic + k swap < ITR w/o matching numbers.

 

Go k had a 200+ HP b-series in the r stepped up 246 HP k20. Night and day difference.

 

Thanks for the responses. I'll go to the shop and stare at these some more...

81.5mm with P30 pistons...





Or 87.5 with 13.7:1 pistons hmmmmmmmm....









I think the K will win.
Thanks guys!!!
Look for a build thread shortly!!

 

Put a b in it everybody is resorting to the k

 

I wouldnt say "resorting to the K" but how could u not go with it ?

I was ready to drop my coin on an 85mm b18c5 block and a head from rlz but for the same total investment , i picked up my k24a2 swap.

K24a2 w/ bolt ons 195tq > b18c5 fully built 165tq

 

I couldn't agree with this more.


As someone else mentioned, if the car had original motor and trans I would leave it alone, but it doesn't. So, K series here I come!!!

 

I dunno money to power I dont think it's worth it but hey not my car

 

go k!!!!!!!

 

I love my k24 frank ITR.

 

K24A4
Found in:
2003-2005 Honda Accord(USDM), 2003-2006 Honda Element
Displacement: 2,354 cc (143.6 cu in)
Bore and Stroke: 87 mm x 99 mm (3.43 x 3.90 inches)
Compression: 9.7:1
Power: 160 hp (119 kW) @ 5500 rpm (166 hp in 2007/2008)
Torque: 160 lb·ft (218 N·m) @ 4500 rpm (@4000 rpmin 2007/2008)
Redline: 6800 rpm
Cable actuated throttle
[edit]



So you'd REALLY have to build it for 300 WHP right? I'd go B18C5

 

We'll just blame it on your join date.

 

Peak numbers are just that, numbers. I wouldn't focus on a dyno slip, I would focus on a reliable build that is fun to drive. I may be a purest, but I would stick with a simple C5 build with quality bolt-on's over any other option.

This is your car though. What really matters is what do you want? If you haven't already, think about what you plan to do with the car, now, and also 2+ years down the road. Regardless of the build choice, you want to make sure it fits your needs and wants now and a few years from now.

 

^^^ very good advise! Reliably getting the most usable power over widest rpm range.

 

Yup, k24 still wins.

240whp oem build is formulaic and reliable.

And 6sp?

It's a no-brainier.

Sell your c5 to fund the swap.