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User avatar
By Ryanjdm
#3678038
I've got my car booked in at tdi north in October and just wondering what power I should expect to see with the following spec list.

K20a from aerial atom
Japapeed exhaust manifold
Straight though exhaust
Rbc intake bored out to 70mm
70mm throttle body
Tegiwa induction kit
K100 ecu
User avatar
By Superman001
#3678042
Ryanjdm wrote:I've got my car booked in at tdi north in October and just wondering what power I should expect to see with the following spec list.

K20a from aerial atom
Japapeed exhaust manifold
Straight though exhaust
Rbc intake bored out to 70mm
70mm throttle body
Tegiwa induction kit
K100 ecu
Whats the diameter of the exhaust?

If its a minimum of 2.5inch then I would guess about 247-252bhp :scratch:
User avatar
By ::Adds::
#3678097
250 ish on tdi's particular dyno...

Don't get happy, try another dyno and you will be sad..

Still, it's not about numbers anyway dude
User avatar
By TDi-North
#3678466
::Adds:: wrote:250 ish on tdi's particular dyno...

Don't get happy, try another dyno and you will be sad..

Still, it's not about numbers anyway dude

Really? :lol:

About 240 unless you go 3" exhaust then a bit more maybe.
User avatar
By karl
#3678495
you should get it onto a dyno to find out...no, wait...
User avatar
By ::Adds::
#3678522
TDi-North wrote:
::Adds:: wrote:250 ish on tdi's particular dyno...

Don't get happy, try another dyno and you will be sad..

Still, it's not about numbers anyway dude

Really? :lol:

About 240 unless you go 3" exhaust then a bit more maybe.
Judging by a few I've seen before.. 250 ish I said :salut:
User avatar
By Ryanjdm
#3678659
I know numbers not every thing an it's about the way it drive but why do you think the bhp will be around 240 as the ariel engine with hondata is 245 and I've seen people reach this power with the same mods I have on a k20a2 so surly the cams that are fitted in the k20a must help push abit more
Last edited by Ryanjdm on Thu Aug 29, 2013 4:39 pm, edited 1 time in total.
User avatar
By bluntcap
#3678666
Ryanjdm wrote:I know numbers not every thing an it's about the way it drive but why do you think the bhp will be around 240 as the ariel engine with honda ya is 245 and I've seen people reach this power with the same mods I have on a k20a2 so surly the cams that are fitted in the k20a must help push abit more
What BHP figure would you like us all to say to keep you happy?

255.......260.......275?

Why do you care? It's a number, in the grand scheme of how a car is set up it means basically nothing. The quality of the map is what counts, not the figure.Don't get hung up on it. You have a great engine, good quality breathing mods and a good sized exhaust. The car will breath better, burn fuel better and it will go faster. Forget about what the figure says.
User avatar
By 6N2 GTI 00
#3678669
K20A in the DC5 is 217 stock and 212 in the JDM EP3, whereas K20A2 used in the UK CTR's is 197.

If you do have the K20A engine it will have JDM cams which might give you an extra 5-6bhp, it also has higher compression pistons and different valve springs. You might get 245bhp+ on a good day

3" exhaust, better cams (TDI/A3's) & better header should get you 255+

It's how it drives on the road that counts, TDI will do a great job at mapping it so i'm sure you will be happy
User avatar
By bluntcap
#3678671
6N2 GTI 00 wrote:K20A in the DC5 is 217 stock and 212 in the JDM EP3
Only when run on the same Ron they use in Japan, the ECUs are mapped to 99 or 100 over there, so reduce it slightly if using 97.
User avatar
By Ryanjdm
#3678698
I'm not getting funny so please don't take it that way I am genuinely interested why the think it would be 240 like I've said I've seen k20a2 get 240odd with the same setup so surly have the JDM cams would just push it into the 250 mark as the engine I have fitted (k20a from a atom) is 245bhp according to there website
User avatar
By bluntcap
#3678700
Ryanjdm wrote:I'm not getting funny so please don't take it that way I am genuinely interested why the think it would be 240 like I've said I've seen k20a2 get 240odd with the same setup so surly have the JDM cams would just push it into the 250 mark as the engine I have fitted (k20a from a atom) is 245bhp according to there website
1st things 1st, just because it's from an Atom it don't mean shizz. It's a JDM spec K20 engine. The mapping, induction and exhaust on the Atom is what makes its power.

So you have a JDM spec engine (better cams etc), that will be mapped on a new induction and exhaust set up to the Atom. If you run 97 Ron with the breathing mods you have, it will be fast, regardless of the figure.
User avatar
By Ryanjdm
#3678704
bluntcap wrote:
Ryanjdm wrote:I'm not getting funny so please don't take it that way I am genuinely interested why the think it would be 240 like I've said I've seen k20a2 get 240odd with the same setup so surly have the JDM cams would just push it into the 250 mark as the engine I have fitted (k20a from a atom) is 245bhp according to there website
1st things 1st, just because it's from an Atom it don't mean shizz. It's a JDM spec K20 engine. The mapping, induction and exhaust on the Atom is what makes its power.

So you have a JDM spec engine (better cams etc), that will be mapped on a new induction and exhaust set up to the Atom. If you run 97 Ron with the breathing mods you have, it will be fast, regardless of the figure.
Right I see now I thought the atom ran the same inlet as a dc5/JDM ep3 and thought it had somthing else different apart from the exhaust to make 245bhp
User avatar
By 6N2 GTI 00
#3678738
Exhaust system including the header & mapping can make a huge difference on a K20, the air intake system will also be different on the atom which again can have a big impact on the performance
User avatar
By bluntcap
#3678900
Ryanjdm wrote: Right I see now I thought the atom ran the same inlet as a dc5/JDM ep3 and thought it had somthing else different apart from the exhaust to make 245bhp
Yea the inlet is the same as it's a JDM spec engine, but the JDM inlet isn't massively different than the UKDM one, it has slight benefits. But that won't matter to you as you will have an Rbc intake bored out to 70mm & 70mm throttle body, so it doesn't matter if the engine has a better inlet than the UKDM as your inlet blows the JDM inlet out of the water.

The JDM spec engine has better profile cams and different compression if I remember correctly.


BRO it will be fast, don't sweat the small stuff, TDi will take good care of you.

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