CL9 Hondata FlashPro vs CL9 stock

feuss2 said:

Are both cars stock?

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No. Among other things, the blue one has:

Hondata FlashPro
Hondata heatshield gasket
Fujita CAI
VTC 45º
Comptech headers
Test pipe
Cat-back
5,062 final drive


Two cars are 05 Honda Accord 2.4 i-vtec Executive

raigen18 said:

I'm curious as to how much more power a custom tune with flash pro makes over a standard ecu reflash, both with just basic i/h/e bolt ons. I know flashpro is a must for things like vtc, cams, im, tb upgrades, etc... but how much better is it over the standard reflash with only basic bolt ons

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your average tsx with going to put down between mid 160 and mid 180 whp on a dynojet depending on the weather, transmission, etc.

bolt on modifications and a 50 degree vtc intake cam gear are going to make huge improvements over stock along with a custom tailored tune. a reflash is just a canned tune that's going to make perform average for a typical bolt on setup. a custom tailored tune will always outperform a standard reflash.

i just finished tuning this k24a2 today. it was swapped into a 2009 civic si. the engine has the following modifications:

-go power intake (it's a 3.5 inch intake pipe)
-rbc intake manifold
-50 degree vtc intake cam gear
-skunk2 alpha header
-3 inch exhaust
-FIC 650cc injectors
-E85 fuel



the k24a2 responds very well to bolt on modifications alone. 230 whp on a dynojet should be easily achievable even with stock injectors and pump 91 or 93 gasoline. it all comes down to the right parts and a custom tailored tune.

b.r.i.a.n. said:

your average tsx with going to put down between mid 160 and mid 180 whp on a dynojet depending on the weather, transmission, etc.

bolt on modifications and a 50 degree vtc intake cam gear are going to make huge improvements over stock along with a custom tailored tune. a reflash is just a canned tune that's going to make perform average for a typical bolt on setup. a custom tailored tune will always outperform a standard reflash.

i just finished tuning this k24a2 today. it was swapped into a 2009 civic si. the engine has the following modifications:

-go power intake (it's a 3.5 inch intake pipe)
-rbc intake manifold
-50 degree vtc intake cam gear
-skunk2 alpha header
-3 inch exhaust
-FIC 650cc injectors
-E85 fuel

the k24a2 responds very well to bolt on modifications alone. 230 whp on a dynojet should be easily achievable even with stock injectors and pump 91 or 93 gasoline. it all comes down to the right parts and a custom tailored tune.

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4ngel: results from the mods look good! Although like was already mentioned - the final drive probably helped quite a bit - so would be easier to see the benefits of the Hondata if the final drive was constant between the two cars. But good work either way! I'd be curious to see the 1/4 mi run results of those two cars!

Hey B.R.I.A.N - the gains you achieved on that bolt-on K24 are impressive! I LOVE how the torque and HP go nuts at 4300 RPM! Great top end - no doubt - but is the low end - is it still equal or better than stock around 3000 RPMs?

I have an 06 w/CT Icebox (re-flashed) I hope to get Flashpro and 45-50 VTC and then debating RBC vs RRC coupled with weapon R header and high flow cat. Do you think with any combination of those part (on 93) I could get similar peak power (220-230hp) BUT still maintain a solid torque curve around 3000 rpm? Could i keep the RBB and get similar results or does,it kill the top end? I do a lot of 200+ mile highway drives and want to still be able to go up moderate hills at 55-70 in 6th gear without having to downshift (want to still get 30+ highway). Can I hit 220+ AND have a the CtIcebox and stock (2.25 in) exhaust? Thanks!


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H22_J30_K24 said:

Hey B.R.I.A.N - the gains you achieved on that bolt-on K24 are impressive! I LOVE how the torque and HP go nuts at 4300 RPM! Great top end - no doubt - but is the low end - is it still equal or better than stock around 3000 RPMs?

I have an 06 w/CT Icebox (re-flashed) I hope to get Flashpro and 45-50 VTC and then debating RBC vs RRC coupled with weapon R header and high flow cat. Do you think with any combination of those part (on 93) I could get similar peak power (220-230hp) BUT still maintain a solid torque curve around 3000 rpm? Could i keep the RBB and get similar results or does,it kill the top end? I do a lot of 200+ mile highway drives and want to still be able to go up moderate hills at 55-70 in 6th gear without having to downshift (want to still get 30+ highway). Can I hit 220+ AND have a the CtIcebox and stock (2.25 in) exhaust? Thanks!


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the low end will be better. the high flow cat is going to limit gains. you need a true race header with no cat to see the best gains. as far as the rbb manifold goes, it was designed more for low end torque. you're not going to get the same peak gains as you would with the rbc or rrc intake manifold. the ct ice box is also going to limit peak gains. these engines love to breathe. you need a 3.5 inch intake pipe at the very least. the stock exhaust will limit mid range gains. your best bet would be to go with a single exit 3 inch exhaust.

i would really not worry about peak number. look at the power under the curve. the car i tuned yesterday is making 225 whp from just before 6500 rpms all the way past 8000 rpms. that's a fat usable range of power. your average k20a2/z1/z3 with bolt on's will see 220-230 whp peak but will only see that range for a few hundred rpms. the k24 has a much broader range of power.