I'm new to the honda world...suggestions and insights to pros and cons of both supercharger and turbo would greatly be appreciated

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94jdmlude &raquo;</TD></TR><TR><TD CLASS="quote">I'm new to the honda world...suggestions and insights to pros and cons of both supercharger and turbo would greatly be appreciated</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=316373

lots of reading imo if not looking for high HP find JRSC and supercharge, what gen of prelude do u have? im guessing 4th gen from ya screen name

 

i really dont know...i bought the car two weeks ago...i just want my car to be descent on the street and i looked for jr supercharger they didn't have one for my car...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94jdmlude &raquo;</TD></TR><TR><TD CLASS="quote">i really dont know...i bought the car two weeks ago...i just want my car to be descent on the street and i looked for jr supercharger they didn't have one for my car...</TD></TR></TABLE>

what year is your car?

 

1994 honda prelude with 215000 on chassis and the h22a has 68000...5 speed vtech....i dont really know what else to tell you...truck to car transition not too smooth

 

turbo, jrsc need custom braket and ur firewall is too close, so go with turbo and search..........its vtec not vtech

 

i mean i'm game for either...a lot of people have told me to build my own kit...would y'all also recommend that or what? and vtec* sorry haha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94jdmlude &raquo;</TD></TR><TR><TD CLASS="quote">1994 honda prelude with 215000 on chassis and the h22a has 68000...5 speed vtech....i dont really know what else to tell you...truck to car transition not too smooth</TD></TR></TABLE>

yes sir 4th gen turbo may be ya best bet, like previously stated the JRSC would take some work to fit. Do a compression and leak down test if you can to check the health of motor.
Things keep in mind:
1. Boost not cheap
2. U may need a 2nd car sh*t breaks and also downtime so if its your daily driver your screwed.
3. Try and read up and research as much as much as possible.....(knowledge is key)

 

yeah i thought about the parts car...bought same year car with h23 in it...i got lil truck to drive if i f*** up main lude...how would i do a compression and leak down test?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94jdmlude &raquo;</TD></TR><TR><TD CLASS="quote">yeah i thought about the parts car...bought same year car with h23 in it...i got lil truck to drive if i f*** up main lude...how would i do a compression and leak down test? </TD></TR></TABLE>
http://www.c-speedracing.com/h...n.php leakdown
http://www.c-speedracing.com/h...t.phpcompression

 

Figure out what you want from a performance point of view. A supercharger gives plenty of low end trq but usually lacks in the top end. If you want this type of low end torque power band you can build a turbo setup to match it. You can also build a turbo setup for big top end power...you choose.

*Research Research Research

 

turbo...enough said...but seriously do exactly what the ysay research is the key...Ive had my car for about 3 years and for those 3 yrs i wanted to go turbo...but im still trying to find a setup that best suits my goals

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ProjectBB6 &raquo;</TD></TR><TR><TD CLASS="quote">Figure out what you want from a performance point of view. A supercharger gives plenty of low end trq but usually lacks in the top end. If you want this type of low end torque power band you can build a turbo setup to match it. You can also build a turbo setup for big top end power...you choose.

*Research Research Research </TD></TR></TABLE>

There is no SC kit for 4th gens, which is what he has.

It would be QUITE a challenge to build a turbo 4-cylinder that had the same powerband as an SC'd 4-cylinder.

 

no not really... my old 18G turbo created a similar power band. I believe 16G on an h22 would mimic a supercharged h22's power band closely. There are quite a few factory turbo cars that have naturally aspirated like power bands that you wouldn't know it was boosted until someone told you. With the right setup it is possible.

 

Any turbo that doesn't have ball-bearings and/or variable geometry is going to be noticeably stronger at either the lower end or higher end.

Do you remember when your 18G started to spool and create boost? A supercharger makes boost off-idle....

 

yes it would hit full boost at around 3000rpms. This is not my graph but this is an 18G greddy turbo kit on a 5th gen, untuned at 7 pounds.



Here is a JRSC setup


You look at tell me if you see any similarities.

 

since somebody started this thread, I thought I take advantage and ask. What is a good turbo kit for the 5th gen? I heard greddy is discontinued.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ProjectBB6 &raquo;</TD></TR><TR><TD CLASS="quote">

You look at tell me if you see any similarities. </TD></TR></TABLE>

Cool, overall they look pretty similar, though the SC is a bit smoother and has a tad more power in the lower end. Looks like the turbo starts to drop off at 7K while the SC plateaus....either way that is pretty close

I don't guess these aren't on the same dyno?

 

No they are not on the same dyno so comparing the two graphs is a little difficult but its just to get an idea. Tho If you look at 2750rmps on both graphs, the turbo is actually making more trq and hp than the supercharger. However, like you said they are on different dynos so numbers are just that... numbers. If they were both run on the same dyno on the same day it would have made for a better comparison.

All in all you can build a turbo setup to "mimic" a JRSC setup not necessarily make it identical. We also need to remember that we cant really feel hp... its trq that you can feel. So if you want that low end power and want to go turbo... as Hawkze says a smaller size ball bearing turbo would be perfect for you.

 

True that. Our poor choice of SCs for H22s and H23s doesn't help either. A pulley change could really help that SC also...and I wonder what a centrifugal SC dyno would have looked like?

 

dang you honda boys are good...thank y'all for the insights and info

 

I'd love to see what an intercooled centrifugal SC would do... I don't like the intake temperatures on roots-type SC's Shouldn't take much more work than a turbo. Just have to fabricate a few brackets and pulleys.

 

All you have to do is run a good meth injection system and it would cool the intake charge significantly.

 

Yea that would be fine while your at the track, my main concern is the overall engine longevity when running it in a DD.

 

What makes you think Meth injection cant be used on a DD? It is in essence an octane booster. It will allow you to run more boost, more timing... safely. Heat, pressure, and Knock are the main killers of motors. People running Meth injection has also been known to have cooler EGT's. This will also help you reduce knock and increase the longevity of your motor.

Heres some more good info on meth injection:

http://www.rbracing-rsr.com/waterinjection.html
http://www.tristatetuners.com/...11891
http://forums.nasioc.com/forum...f=145