I want to get one of these but which one has the best reliability?

my car only has 15k on it and I want it to be fast, but last too.

AJC turbo

or

Comptech Supercharger

thanks.

 

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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sleepingEg8 &raquo;</TD></TR><TR><TD CLASS="quote">Ok this one goes out to all the Honda-Tech'rs with the intestinal fortitude to make their OWN decision as to what form of forced induction they would like to run. Im just gonna sway the decision a little bit with this one!!!! lol

When trying to decide which flavor of forced induction to run I was forced with two choices...

1. Turbo
2. Supercharger

After all my research I have came to the simple solution.. TURBO!!!!!!!!

Supercharger is ghey!!!.... You jackson guys don't get bent out of shape, you will soon understand why your not very fast at the track.

This is a graph of the power consumption of the eaton M62 that is used in the typical supercharged civic setup. Notice at 8 psi the power the supercharger needs to spin it is over 30hp...30HP....


ok well lets counteract that by installing a higher boost pulley...Now at 11psi we are sapping almost 40HP... YEAHHHHHHHH!!!!!

Now your probably saying...ohhhhh no wonder supercharger sucks for small displacement motors.... but wait...theres more!!!!

There is a magical thing called delta T which in a nutshell is the temperature of the air leaving the supercharger. Here is a graph to illustrate.



at 10psi the supercharger is pumping out almost 200 degree air. Thats Really friggin hot. Can we all say D-E-T-O-N-A-T-I-O-N..... So how can we counteract this other side affect of supercharged boost. With and intercooler that cannot be packaged currently with the supercharger kits on the market,

BESIDES Endyn. Larry is by far the only guy out their in the Supercharger/Honda game that can make superchargers work with his membrane intercooler and his trick supercharger porting, both of which are designed to beat both of these detrimental downfalls of the supercharger kits out there.

So there you have it, Turbochargers owns all.... Look forward to a future post about sizing the correct turbo to your engine....not the one that that one guy on honda-tech says to run....T3/t4 hybrid... Til next time... Keep them turbos spooled.....lol </TD></TR></TABLE>


TONS of great info/knowledge archived on this board... usually just takes a couple seconds of searching to answer your questions

 

While that was all good info, he didnt support the turbo side...

There are pros and cons to both.

I know very little, but from what I have learned, I know that superchargers, while giving less gains, are live power... by that i mean its there when you stomp the gas.

Turbo needs a little more time to kick in, but once it does... oh boy.

I think Supercharging is better off on V8s myself, because the gains on smaller engines just isnt as good overall compared to a turbo unless you really sink some money into the S/C.

my.02

(note, it is possible i could be wrong on some of this, i AM still learning too)

 

i dont think theres much of an arguement there for quality

comptech

 

what is the price range for the AJP turbo kit? i know what comptech's price is. and for the money, it just seems kinda silly to spend that much for a supercharger that will only push u up to 249whp if u are lucky. plus the vtec engagement gets dropped to 3000rpm which ruins any thought of fuel economy.

i want to know how AJP pushed 300whp under 5psi!!!! i want that way more than the supercharger.
dont forget to upgrade suspension and other variable when pushing that much power to stock equipment. 2 cents

 

on my car...
they did it via the use of...
a custom manifold
precision 6176S (garett made turbo)
an efficient intercooler
3" downpipe

this supercharger VS turbo thing can get complicated.

for what u want.....
SPEED.....how much speed? a lot...then go for AJP...mild then get comptech...
LASTING....that's all on you...how often u going to beat on it? how often u going to maintain it? that will determine how long it lasts.

running a comptech SC at 11psi to get 300whp is already pushing it...so it probably won't last as long as an AJP kit at 300whp at about half the psi...that is if all factors are equal...

depends alot on ur goals....sough them out ... be specific and then decide.

 

check this out guys http://www.redshiftmotorsports...t=101

thats a rotrex supercharger pushing over 370 at 15 psi. the kit intercooled is only 4900!! this is what im leaning towards. my .02

 

AJP all the way, its worth the money

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Demonis &raquo;</TD></TR><TR><TD CLASS="quote">While that was all good info, he didnt support the turbo side...

There are pros and cons to both.

I know very little, but from what I have learned, I know that superchargers, while giving less gains, are live power... by that i mean its there when you stomp the gas.

Turbo needs a little more time to kick in, but once it does... oh boy.

I think Supercharging is better off on V8s myself, because the gains on smaller engines just isnt as good overall compared to a turbo unless you really sink some money into the S/C.

my.02

(note, it is possible i could be wrong on some of this, i AM still learning too)</TD></TR></TABLE>

Yes, superchargers have the advantage of quick, when-you-want-it power. They also create lower under hood temperatures than a turbocharger. In addition there are less parts to fail on the supercharger setup... with the majority of turbo applications you have to keep an eye on downpipe gaskets, warping manifolds/flanges, boost creep and a few other things. Whereas with a SC you BASICALLY just need to keep an eye on the drive belt/pulley.
In the end if you want SERIOUS power go with a turbo. It can be just as reliable as a SC if all of the proper precatiouns are taken IE quality parts, proper fuel/ign mangement upgrades and TUNING... also w/ a turbo its much easier to increase the PSI.
If you want something thats quite a bit more reliable/worry free but yields less gains stick with a SC.

Personally if I were to do anything with my Si it'd be a supercharger... I've done turbo, nitrous, NA, SC and all of them are fun but with a car this new and wanting to keep my life simple as possible SC would be the best choice, IMO

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TRE_ &raquo;</TD></TR><TR><TD CLASS="quote">&lt;snip!&gt;

Personally if I were to do anything with my Si it'd be a supercharger... I've done turbo, nitrous, NA, SC and all of them are fun but with a car this new and wanting to keep my life simple as possible SC would be the best choice, IMO</TD></TR></TABLE>



I personally don't want a Civic street car with over 250whp, so a 4-6psi SC setup is going to be the gem for me (seeing how anything over 250 to 300whp, depending on application, requires engine modifications to be reliable). However, once I am done with all of this, my girlfriend's 1995 Civic LX is turning into a track only boost toy


Modified by MonkeyConQueso at 12:08 PM 11/13/2006

 

Sounds like a SC would be the reliable choice with my lack of knowledge. I know very little about tunning and maint of a turbo or SC.

250whp would be nice, 300whp would be better but then again I rarely go to the track. but I guess I'd go more if I had more HP

That RedShift rotex Supercharger is pushing some nice numbers too.

 

true true. the more i think about, the more i want a turbo, but the more im going to end up getting a supercharger. wouldnt mind a vortec supercharger being released with the sick look it has for the 350 z's. the greddy turbo kit pushes out 254 whp at 5.4 psi, which is very nice... but the comptech SC can push 249 constantly. i REALLY DONT like that hte vtec engagement is lowered to 3000rpm. really dont like that. i wonder if they can change it to 3500 and still maintain the same hp rating? i would like to maintain fuel efficiency. changing boost on the SC is going to be a bitch though. changing a pulley is much more time/labor intensive than adjusting a EBC from 6psi to 10 psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95turbodteg &raquo;</TD></TR><TR><TD CLASS="quote">&lt;snip!&gt;i REALLY DONT like that hte vtec engagement is lowered to 3000rpm. really dont like that. i wonder if they can change it to 3500 and still maintain the same hp rating? i would like to maintain fuel efficiency. changing boost on the SC is going to be a bitch though. changing a pulley is much more time/labor intensive than adjusting a EBC from 6psi to 10 psi. </TD></TR></TABLE>

Someone correct me if I'm wrong, or I misunderstood, but I read somewhere on here (I can't find it with a search ) that VTEC doesn't engage at 3000 RPM unless you are on the throttle asking for it. j.fuggi, Hellzcivic (Tallwin)? I thought one of you tested it and found that to be true... Or maybe I'm just hallucinating here in the morning.

 

i havent heard anyone talking about it, but i may not have read it when it was posted. im going by what i did read regarding the reflash that comes with the supercharger. i could be wrong, but im going by what i heard from comptech or someone else that had it installed.

 

Anyone ever delt with the Redshift supercharger.

Impressive numbers!

 

Redshift is just throwing numbers out there for marketting purposes...

until those numbers are proven and tested...i won't pass judgement..

i don't doubt the guys...but my understanding is that the car has never seen a dyno...and that's from info. given from redshift themselves.

so it may look impressive...but it's not even tested or proven...

just a heads up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MonkeyConQueso &raquo;</TD></TR><TR><TD CLASS="quote">

Someone correct me if I'm wrong, or I misunderstood, but I read somewhere on here (I can't find it with a search ) that VTEC doesn't engage at 3000 RPM unless you are on the throttle asking for it. j.fuggi, Hellzcivic (Tallwin)? I thought one of you tested it and found that to be true... Or maybe I'm just hallucinating here in the morning. </TD></TR></TABLE>

This is true. The Vtec does not engauge unless you are really getting on it. The Vtec "window" is open from 3,000 rpm on. The different in acceleration is amazing. With the supercharger, I notice a significant increase in acceleration in 1st through 5th, with only using 25% throttle. Much better then stock. When you floor it at 4,000 rpm the acceleration is mind blowing. The torque hitting the front wheels actually makes it a little squirrelly.

I don't feel the big Vtec "jump" so much anymore. I feel solid, smashed in the seat acceleration. The acceleration difference between Vtec and non-Vtec is extremely noticable. So, depending on how much throttle your using really determines whether your running with or without Vtec.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hellzcivic &raquo;</TD></TR><TR><TD CLASS="quote">

This is true. The Vtec does not engauge unless you are really getting on it. The Vtec "window" is open from 3,000 rpm on. The different in acceleration is amazing. With the supercharger, I notice a significant increase in acceleration in 1st through 5th, with only using 25% throttle. Much better then stock. When you floor it at 4,000 rpm the acceleration is mind blowing. The torque hitting the front wheels actually makes it a little squirrelly.

I don't feel the big Vtec "jump" so much anymore. I feel solid, smashed in the seat acceleration. The acceleration difference between Vtec and non-Vtec is extremely noticable. So, depending on how much throttle your using really determines whether your running with or without Vtec.</TD></TR></TABLE>

Thanks for confirming

But this just makes me want to eat ramen and PB&Js until I have enough saved up for the SC...