Turbo or Supercharger for I4 08 Accord Coupe?

Hello,

I'm deciding to buy a I4 08 Accord Coupe Ex manual drive because it's $4800 cheaper and averages 5 mpg more than the v6
manual. However, I would like to eventually add a turbo kit or a supercharger that won't damage the engine's longevity. It would be great if the add-on won't affect the accord's warrantee. Does anybody have any suggestions? Thanks!!

-Isaiah

-ps I realized that I might have wrongfully posted this message under Engine & Internal, so plz excuse me if you're seeing the same post!

We'll forgive you this time since your new  Next time if you accidentally post in the wrong section, just ask a mod to move it and we will do that for you.

To answer your question: I am pretty sure adding forced induction will totally void the warranty.  Also a turbo or supercharger will likely shorten the engine life.  A lot of that has to do with the way most people drive when they have a turbo...
 
Oh yeah: Welcome to the forum! 

I honestly don't think that is a good idea. if you add a turbo or supercharger its going to void the warranty point blank. wouldn't it be smarter to spend the money you're going to use to get that accord to get something like a civic or scion or even a GTI,better on gas mileage and tuner friendly, and just tune it up with the money left over?and if you read the reviews on the 8th generation accords, they seem to be focused on competiting against other luxury cars like lexus and BMW and whatnot.besides the 8th generation looks like a heavy generation to me.and in my opinion and from my research,if you're looking for torque and power within the 8th generation,it would be smarter to just save up and get the V6,6 speed version. 268 Hp is not bad at all for an accord and with a manual in your hand, its like putting a 8 year old child in a candy store and say get whatever you want.  

Buy the V-6 initially. You're going to void the warranty 100% and spend damn near $10K for a custom huffer setup along with tons and tons of custom tuning IF you can find a place qualified to do it. Also forget the 5 mpg advantage with forced induction and enjoy buying premium fuel only.

^ I agree....those are excellent points RtexasF.  Turbo will more than likely decrease the fuel economy to that of the V6(or worse), and you have to use premium after you turbo.  So you would wind up spending a lot more $ on a 4 cyl if you turboed it, then it would still probably be slower than the V6 and possibly get worse gas mileage to boot.

what's done it's done.... get i/h/e.....

^ he said deciding to buy
At first I thought the same, but it looks like he hasn't bought it yet

he might as well get the V6 accord or S2000.

^^^  nice comparison!  get the V6 or an S2k ..... how about a unicycle vs. a Hayabusa ..... or for that matter an Accord vs. a Corvette!

I assume you must be referring to the seating arrangements falkore.  I wouldn't think an S2000 would kill a 2008 V6 6spd too badly - but I could be wrong....

I think that you are very wrong Jon.

2008 AV6 sedan weighs 3567 lbs and has a max torque of 248.
2008 S2k weighs 2855 lbs and has a max torque of 162.

If you compare lbs weight per ft.lb. torque you will see that the S2k has 22.5% more torque per lb of car.  Not to mention that it has 245 rear tires and RWD to get that all to the ground.

Thanks guys for your advice. They really helped a lot! But what if I get a tsx comptech supercharger instead of a turbo? Would it work and come out to be < $27,000 for a $21000 coupe?

-Isaiah

go NA! all motor ftw!

quote:

ORIGINAL: isaiah12

Thanks guys for your advice. They really helped a lot! But what if I get a tsx comptech supercharger instead of a turbo? Would it work and come out to be < $27,000 for a $21000 coupe?

-Isaiah

The real question is what you are trying to achieve.  First, you want to get the 4 cylinder to save $4800 and get 5 mpg better economy.  Now you want to spend more on the 4 cylinder plus SC then the V6 stock.  The SC kit will have larger fuel injectors and a new ecu tune, so the 4 banger will suck down more gas than the V6.  If you just want to go with the most power and acceleration, a built 4 with a high pressure turbo or a V6 with a supercharger or turbo are the ways to go.  Forced induction requires a lot of reading and research.

You'll still have to use premium gas.
I thought Comptech went bankrupt?

Yeah Comptech is out of business, but you can still find some of their parts around.
 
If you want power and a warranty I'd say go with the I4 manual and get I/H/E, that was you can always go back to stock if you need the warranty for something. There isn't a simple way to turbo or SC a car without it draining your pocket and voiding your warranty.

quote:

ORIGINAL: falkore24

^^^  nice comparison!  get the V6 or an S2k ..... how about a unicycle vs. a Hayabusa ..... or for that matter an Accord vs. a Corvette!

 
ummm i assumed since he's obviously on a HONDA forum looking to tune up an 08 car maybe he should go towards those and its not even that slow so what are you talking about?????the S2000 is very fast i give it that but it wont beat a V6 at ease!don't get me wrong it'd win but you make it sound like the accord would get demolished

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ORIGINAL: HORSEPOWERJUNKIE2007

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ORIGINAL: falkore24

^^^  nice comparison!  get the V6 or an S2k ..... how about a unicycle vs. a Hayabusa ..... or for that matter an Accord vs. a Corvette!

ummm i assumed since he's obviously on a HONDA forum looking to tune up an 08 car maybe he should go towards those and its not even that slow so what are you talking about?????the S2000 is very fast i give it that but it wont beat a V6 at ease!don't get me wrong it'd win but you make it sound like the accord would get demolished

Because it would get demolished. Number of cylinder, horsepower, and torque don't mean much these days. What counts is how you put it on the road through tires, suspension, gearing, clutch, etc. The Accord is built as a family car and performs like one (with some guts) and the S2K is a sports car (built for speed, not comfort. lol). My car is 2.3L, I certainly wouldn't f*** with a 1.8L Lotus, a 2.0/2L S2K, 2.0L Evo, or 2.0L STI. The last two weigh in about the same as your Accord (a little less) and none have forced induction. So, in the end, I would say falkore's comparison are very reasonable. HP to weight ratio FTW and that is why an S2K will beat a V6 accord with ease.

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ORIGINAL: finch13  Yeah Comptech is out of business

Comptech is not out of business.  They closed for awhile and went under new management.  Here is a link to the new website (at least the S2000 page): http://www.ct-engineering.com/store/s2000.html

As to the OP's orginal question- boost of any kind will void your warrenty, PERIOD!!  If you want more reliability go with the SC.  If you want more power, go turbo.

I stand corrected. They don't have much for us 6th gens. Boo.

quote:

ORIGINAL: finch13

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ORIGINAL: HORSEPOWERJUNKIE2007

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ORIGINAL: falkore24

^^^  nice comparison!  get the V6 or an S2k ..... how about a unicycle vs. a Hayabusa ..... or for that matter an Accord vs. a Corvette!

ummm i assumed since he's obviously on a HONDA forum looking to tune up an 08 car maybe he should go towards those and its not even that slow so what are you talking about?????the S2000 is very fast i give it that but it wont beat a V6 at ease!don't get me wrong it'd win but you make it sound like the accord would get demolished

Because it would get demolished. Number of cylinder, horsepower, and torque don't mean much these days. What counts is how you put it on the road through tires, suspension, gearing, clutch, etc. The Accord is built as a family car and performs like one (with some guts) and the S2K is a sports car (built for speed, not comfort. lol). My car is 2.3L, I certainly wouldn't f*** with a 1.8L Lotus, a 2.0/2L S2K, 2.0L Evo, or 2.0L STI. The last two weigh in about the same as your Accord (a little less) and none have forced induction. So, in the end, I would say falkore's comparison are very reasonable. HP to weight ratio FTW and that is why an S2K will beat a V6 accord with ease.

Sorry but the v6 coupe 6spd most likely would take a s2k in the straight line the s2k is not built for straight line it is built for more or less for time attack and you can't compare a 1800 pound 1.8l lotus that has 190 hp to the s2k the s2k would not stand a chance in that fight sorry to say for us honda lovers but the nice thing is alot of time attack lotus elise's do honda motor swaps which motor i am not sure. For the evo and STI completely different class of car also both built for rally.

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ORIGINAL: finch13

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ORIGINAL: HORSEPOWERJUNKIE2007

quote:

ORIGINAL: falkore24

^^^  nice comparison!  get the V6 or an S2k ..... how about a unicycle vs. a Hayabusa ..... or for that matter an Accord vs. a Corvette!

ummm i assumed since he's obviously on a HONDA forum looking to tune up an 08 car maybe he should go towards those and its not even that slow so what are you talking about?????the S2000 is very fast i give it that but it wont beat a V6 at ease!don't get me wrong it'd win but you make it sound like the accord would get demolished

Because it would get demolished. Number of cylinder, horsepower, and torque don't mean much these days. What counts is how you put it on the road through tires, suspension, gearing, clutch, etc. The Accord is built as a family car and performs like one (with some guts) and the S2K is a sports car (built for speed, not comfort. lol). My car is 2.3L, I certainly wouldn't f*** with a 1.8L Lotus, a 2.0/2L S2K, 2.0L Evo, or 2.0L STI. The last two weigh in about the same as your Accord (a little less) and none have forced induction. So, in the end, I would say falkore's comparison are very reasonable. HP to weight ratio FTW and that is why an S2K will beat a V6 accord with ease.

 
I'm not saying falklore is wrong, but what i am saying is that i thought the guy was looking for power and style so what i was saying is he should look more on the V6 line,or just get a S2000.I never said the two were evenly match, because i know a S2000 will beat an accord, but come on now! the simile he used is competely absurd!come on now,he's using a 500 horsepower car(the corvette) to go up against a 265 horsepower car(the accord)!that is a horrible comparison!!he makes it sound like the accord is dirt slow compared to a S2000!

I think you just have to much love for the J-series.

quote:

ORIGINAL: finch13

I stand corrected. They don't have much for us 6th gens. Boo.

 
damn dude you're right....but at least they have the supercharger for the AV6's.

Finch:  Evo and STI both are turbo-charged.
HPJ:  Over 20% better power to weight with a better drivetrain to get it to the ground is a kill IMO.  My bad, the Accord vs. Corvette comparison was ziggy's not yours.