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D17 Turbo VS K20a2 Swap... which is better?

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Old Feb 9, 2005
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i drove a 528i 1999 before i got to many tickets when i was 16, was then downgraded to my civic.

i dont know a 5 series with the 225hp is to much cash for me but the normal 5 series with 185 is fine. still tryin gto decide to get that 3 with 255 or go to a 5 and only have 185. i think having the sides and part of the front bumper just black plastic would **** me off to much and i would regert not getting the 5
Old Feb 9, 2005
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5's own...I love the older m5's from 85....sick looking.
Old Feb 9, 2005
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i want to turbo, or nitrous my lil d but after seeing some of the n/a #'s off the k20a2's its tempting lol
Old Feb 10, 2005
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i wanna swap a K20a2 in my 04....there is a rear collision totaled RSX at my friends tow yard...just waiting for the insurance to want to sell it to a junk yard....then its on....
Old Feb 10, 2005
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i have decided it is not worth it to get a k20a2 as apposed to boosting...

k20a2 = 200hp 140 torque.... 170whp....

The type s has VERY LITTLE torque.. and i think i am better off gettinga turbo.

However i am inexperienced when it coems to the swap, so can someone tell me with what "MODS", can you aquire a decent amount of power out of a k20a2. Please also list the prices that the parts would go for (state your currency)
Old Feb 10, 2005
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the k20 responds to mods very well i dont remeber the exact stats and prices but it does respond well
Old Feb 10, 2005
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Originally Posted by shaman
Hey everyone... i know there has been alot of discussion and posts on this issue... but in about 3 weeks i will have enought to either get a nice turbo, or do a complete k20a2 swap into my 2002 civic coupe LX....

I was just wondering if i am better off buying a used k20a2 with about 30,000 km on it.... or boosting my d17 that has 56,000 km.


What are peoples thoughts?

Personally... i would go for the k20a2 swap... its easier to mod...and when its all done and over, i think u'll be more pleased with it
Old Feb 10, 2005
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Originally Posted by shaman
i have decided it is not worth it to get a k20a2 as apposed to boosting...

k20a2 = 200hp 140 torque.... 170whp....

The type s has VERY LITTLE torque.. and i think i am better off gettinga turbo.

However i am inexperienced when it coems to the swap, so can someone tell me with what "MODS", can you aquire a decent amount of power out of a k20a2. Please also list the prices that the parts would go for (state your currency)
Damn I was wondering when somebody would actually bring up the torque issue.

Yeah it is nice to say that the K engines can put out respectable whp numbers with relatively few mods, but the fact of the matter is that turbos increase hp and torque almost equally (at least from what i have seen). As far as "feeling" a power increase, you can "feel" an increase of 10 ft/lbs across the powerband vs 10 hp at sky high RPM.

But that is just my two cents.
Old Feb 10, 2005
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Old Feb 10, 2005
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Originally Posted by deciuss
what is about?

look swap 6 grand for a k20 non type s for only 160hp 4 grand for a turbo for 240ish hp on the d17?

hence allready paying more for your dumb swap then on top of that if you want to be faster and toss a turbo on there thats 4 grand bam 10 grand to be faster then a civic that only payed 4 grand or less for there turbo.
i dont know about you but my local shops here in my area are selling full k20 type s swaps are running $3000
Old Feb 10, 2005
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just to add my 2 cents but we have a local guy running a type s rsx running all motor on drag radial tires and some cam gears and other bolt ons and hondata reflash and is putting out 11.3 at the 1/4 mile tracks.. now think about it.. if we had the same motor in our cars with the same mods we have an advantage over him due to our cars being lighter than the rsx...and he isnt even running turbo yet...too get a turboed d17 to run that you need a hella more boost which means a built block... we also have another local guy here running the SF kit in his D17 tuned and everything and is only putting down 160whp at 7-8psi.. what does that show you
Old Feb 10, 2005
  #72  
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ok first it depends on what you want if you want a very fast car then go k20 turbo if you want a fun street car the turbo a d17 or just do a k20 swap. k20 is an easier way to make power if you got a heavy pocket and the d17 is a cheap way to make moderate power
Old Feb 10, 2005
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Originally Posted by xproductionz
i dont know about you but my local shops here in my area are selling full k20 type s swaps are running $3000

$3000? With mounts and all? Damn that's a sweet price!!! I paid just under $8500 for mine when it was all said and done.
Old Feb 10, 2005
  #74  
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shaman look at the posts on this thread with the dyno chart of the k20a2 with boltons cam and k-pro dyoning at 230.........
Old Apr 25, 2005
  #75  
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stock k20 swap> boosted auto vic
Old Apr 25, 2005
  #76  
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With boost and internal you may reach the 6-7 grand to put in a stock k20, so hmmmm. Let's see, even with my proper internals, and boost, I would pay the same as you and whoop your *** up and down the street, and I may even have enough left over for a 30 shot of Nitrous just to see you cry.
Old Apr 25, 2005
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Old Apr 25, 2005
  #78  
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Originally Posted by deciuss

K20EQUIPPED i would own you unless your running a turbo you would go home crying due to you got beet by a turboed auto.
if he swapped a acura rsx type s with bolt ons and a kpro or reflash it would be a close race i would think...
Old Apr 25, 2005
  #79  
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this is my route for my CIVIC. keep in mind im most likely gonna have it FOREVER (its my first car!).

01 Ex auto
1. Turbo [if tranny blows, swap to manual]
2. If Turbo blows the motor swap to K series.

Im not looking to build a race car, But id actually prefere more torque and say 180hp then 200 hp and not as much torque. The added torque would make the civic much fun to drive daily.
Old Apr 26, 2005
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thanks for everyones comments.....

LOL since the time i first made this post... i have done my research and i am in the process of doing a k20a2 swap.....

I was originally going to make a "frankenstein engine" = k24 motor with a k20a2 Head swap. Unfortuanetly this route will cost far to much because in order to properly do the head swap, you have to build your internals

SO

I have decided to get the k20a2...... price break down is as follows

1) K20a2 motor + tranny + ecu = $3000 canadian
2) RSX Subframe = couple hundred
3) hasport mounts = $700 canadian new or $400-500 canadian used
4) Complete oem rsx exhaust (header, down pipe, midpipe, cat) = $300 canadian
5) Install = $1000 canadian


There is still a few parts i need.... but i am still looking...... when its all said and done it will cost approx $6000-7000 canadian installed..... to run 200hp + 140tq
Old Apr 26, 2005
  #81  
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Am I the only one who noticed that this guy has a Civic LX? In other words, he has a D17A1 which is the non-VTEC version. I think it would be a complete waste of money to turbo this engine. The potential is not there, regardless if you build up the motor or not--the engine is a dog.

The K20A2 has a ton of potential, and as a couple other members have said, it responds very well to bolt-ons. The average whp is 175. An '02-04 K20A2 makes 200 hp at the fly. The rule of thumb is a 12-15% decrease in power at the wheels. On the ClubRSX forum, there is a thread where members have posted their dyno sheets. The majority of stock K20A2s are makin 175 whp (+/- 1-2 whp).

Bottom line is that the D17A1 engine is worthless. Dollar for dollar the D17A1 would never be able to reach the potential of the K20A2. Do the swap buddy!
Old Apr 26, 2005
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^ catalyst has a d17a1 and made 300+ whp on his engine.
Old Apr 26, 2005
  #83  
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Originally Posted by aznboysrfr
^ catalyst has a d17a1 and made 300+ whp on his engine.
I don't think that is a big feat. You can make that kind of power on pretty much any engine if you are willing to put enough money into it. I can guarantee you that catalyst wasn't making 300+ whp on stock internals. No way are the stock internals on a D17A1 gonna handle that much power.
Old Apr 26, 2005
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^ well, the point I was arguing is the fact that 300+ whp was made on a d17a1 ... and a d17a2 isn't much different

neither motors were made to be high hp anyway ...
Old Apr 26, 2005
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no disrespect to any1 but if u did the rsx swapp u should have just bought an rsx. cause this this is what this thread turned into "which is better rsx .vs. civic"IMO
Old Apr 26, 2005
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Originally Posted by aznboysrfr
neither motors were made to be high hp anyway ...
I'll agree with your there. People with D17A1/2 need to understand this so that they are not too disappointed when they don't make the kind of horsepower they are hoping for.
Old Apr 26, 2005
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Originally Posted by bigsamdog
no disrespect to any1 but if u did the rsx swapp u should have just bought an rsx. cause this this is what this thread turned into "which is better rsx .vs. civic"IMO
Would have, could have, should have...

It is not that simple. Maybe, just maybe, people like myself like the look of the Civic better than the RSX. Your not going to get any better performance out of an RSX-S than a Civic with a K20A2. As a matter of fact, a Civic with a stock K20A2 will be faster than a stock RSX-S simply because of the weight difference.
Old Apr 26, 2005
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with respect to the comment made above ^^^

"Civic with a stock K20A2 will be faster than a stock RSX-S simply because of the weight difference"

I thought about it and that may not be true... although our cars are lighter.... the k20a2 engine weighs more.... so i am thinking it will balance out... and the weight difference is insignificant
Old Apr 26, 2005
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Originally Posted by aznboysrfr
where can you get an exedy organic clutch for 220 shipped? ... link me plz

you can also say the same for your the swap ... $1000 off labor if you find some people who know how .... $4300. most people do not know how or are afraid of putting a clutch in and also installing a turbo kit.

if you take labor off of one, you can take labor off the other.

also, are you gonna put the new tires on yourself? ... must be some pretty crappy tires if both are going for 90 shipped

btw: have you dyno'ed your car yet? ... I wanna see how much power the tsi kit makes off stock boost ... which, according to you, is 6-7 psi
I got a hookup for less than that brand new from a vendor. I got buy one get one free tires for 120 for 2 mounted and balanced. They are Kumho Ecsta 711s (decent, not too crappy, ok grip in 1st) I got the clutch so cheap, cuz I bought the turbo from them, so it was a deal sort of thing they gave me.

I have spent probably 3500 give or take 100 so far on turbo kit w/fuel setup, clutch, motor mount bushings, tune, autometer gauges, pillar pod, greddy profec-b (100 bucks from a friend down the street ), and some more sh**.

It will be up to about 4500 to be reliable though, so I would say go the swap route. Less of a headache, its reliable, fast, 8000rpms, you can build it up, etc, etc . A turbo is a major headache, but very nice power and very enjoyable to drive (on cool days, not 110 in the summer )
Old Apr 26, 2005
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Originally Posted by quick silver
Am I the only one who noticed that this guy has a Civic LX? In other words, he has a D17A1 which is the non-VTEC version. I think it would be a complete waste of money to turbo this engine. The potential is not there, regardless if you build up the motor or not--the engine is a dog.

The K20A2 has a ton of potential, and as a couple other members have said, it responds very well to bolt-ons. The average whp is 175. An '02-04 K20A2 makes 200 hp at the fly. The rule of thumb is a 12-15% decrease in power at the wheels. On the ClubRSX forum, there is a thread where members have posted their dyno sheets. The majority of stock K20A2s are makin 175 whp (+/- 1-2 whp).

Bottom line is that the D17A1 engine is worthless. Dollar for dollar the D17A1 would never be able to reach the potential of the K20A2. Do the swap buddy!
I would not say worthless. It isnt any worse than the EX, IMO. They are equally as fast from every race I have done. I have a turbo'd LX, and love it. It has Loooong gears, where the EX has shroter gears. Who really cares about economy vtec, it doesnt mean much. You all take it as its the bombest cuz of VTECH! my ***, my LX seems to make pretty nice power, and would probably kill anybody driving a stock rsx-s or civic swapped with the stock motor.

and dont say, well if you throw a turbo on the K20, than it will be fair race, blah blah. it always turns into that Ive noticed. Im talking stock k20s, as the same with me running 8psi. Good race, but the turbo would win, I would think. Ive raced rsx-s's in my car non turbod, and they were not but a car ahead of me. probably a crappy driver though.



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