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Got a friend with a 97 Civic EX with a SOHC VTEC motor.
What would you do to this motor to speed it up. Blower? Turbo? Or maybe swap it out.
It's a daily driver, not a drag race car. Maybe a motor swap first? How is this for a platform.
He's already got headers, and exhaust, and intake etc.
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I think I'd try to find one of those CRV motors with some Crower cams. I've read on the Hybrid site that there's a guy who swapped out his VTEC motor for one and was impressed with the torque. He just missed the revability of the VTEC. The Crower cams should give you a little more top end, and it should be cheaper then a GSR motor, and have enough torque to keep any daily driver happy! I think with those cams he should be able to get a legit 145-155 to the wheels.
If he wants to go all out do a motor swap. If he wants to keep his engine and go FI he should find a way to lower the compression a bit. The D16Y8 is VERY detonation prone...at least with the SC anyway. I haven't heard anything about how our engines react to turbo's. Some guys who SC their D16Y8's swap to a D16A6 head. The A6 head seems to be the most favorable one for making power on the SOHC motors. More information can be obtained at http://www.theoldone.com Feel free to ask me any specific questions you might have.
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Fred G.
'97 Civic EX supercharged http://www.geocities.com/motorcity/track/4059
Beech 1900D driver...2,558 shp, 10,000+ ft./lbs. tq., top speed 331 mph :)
A blower on a 97 Ex? Been there, done that. Swaps are cool but they are really expensive and they can be difficult to smog depending on where you live. I vote for turbo. Waveoff makes a good point about detonation. Although I have a feeling the problems associated is due to the supercharger/heat rise/JR fuel management. Compression is 9.6:1. That's a nice compromise for Fi.
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Marc
1997 Civic EX, Supercharged
Check out my sig. I have been running this setup for approx. 1 year and have had *minor*
problems only. Usually associated with me trying some jackass new way to make more power. The big thing with the SOHC VTEC is
proper fuel/timing management. I run 6psi on the street [w/ 93 octane gas] and 10psi at the strip [w/ 100 octane gas]. If I try to run 6psi on 87 or 10psi on 93, I get massive detonation [very audible] but otherwise it is fine. BTW, I run Ice Water through my IC at the track to get my charge temps below ambient. Peace.
Kris
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1989 CRX Si- Project "Dark Angel":
D16Y8 w/ Greddy TD04H-15C Turbo kit...
Zdyne Silver SECU, TurboRex Air/Water
Intercooler System, Apexi Twin Chamber BOV,
Greddy 52mm Electronic Boost and EGT gauges,
Halmeter AF30 Air/Fuel Meter, Greddy Profec-B
Boost Controller, Blitz Dual Turbo Timer, 450cc
Mitsu Turbo Injectors, Random Technology High Flow
Catalytic Converter, Tanabe Racing Medallion
Cat-Back Exhaust, Skunk1 Coilovers, Tokico Illumina
Shocks, MOMO Top Power 300mm Steering Wheel, Jamex
Daytona Seat and 4 Point Racing Harness, 14" Civic
HX wheels on "slurpee" 185/60R14 Continential Touring
2000 tires.
Hey, how'd you get a Zdyne ECU for your OBDII motor?!?!
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Fred G.
'97 Civic EX supercharged http://www.geocities.com/motorcity/track/4059
Beech 1900D driver...2,558 shp, 10,000+ ft./lbs. tq., top speed 331 mph :)
my vote is to buy a new car http://www.hostboard.com/ubb/smile.gif
unless you like to do extra work like me.
BLOWER!!!???!! NO WAY IN HELL! Do not run a D16 in a FI configuration. Total waste of money and time.
B18C1 & C5, B16A2/3, B18B and B20's are super easy weekend swaps.
If you don't want to spend lots of $, then a B18B is the way to go. $2000 for everything, can't beat it! Hell, a junk JRSC D16 setup will cost you over $2000, and you'll have more hp and torque, reliably with the B18B. Then some electronics and cams, you'll never be happier.
If you really want a JRSC, I'll sell mine for an offer.
Good luck with whatever you decide. Tom
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'92 Civic Si H/B (D16Z6) w/JRSC @ 6psi, J&S Safeguard, Fields SFC, Slater CAI, DC 4-2-1 header, custom 2.5" B-pipe, Tenzo-R muffler, Cartech FMU, B&M CommandFlo FPR, a grindin' 2nd gear and a bunch of knock...
'99 Goped (X-ped) 32 mph, 17,000 rpm!!!
[email protected]
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by lundgren:
Got a friend with a 97 Civic EX with a SOHC VTEC motor.
What would you do to this motor to speed it up. Blower? Turbo? Or maybe swap it out.
It's a daily driver, not a drag race car. Maybe a motor swap first? How is this for a platform.
He's already got headers, and exhaust, and intake etc.
<HR></BLOCKQUOTE>
Lund lets think it out a bit:
#1 - JRSC (new)
Cost: $2300(no other upgrades)
Performance: 15.7-16.2 note: 6g Sc Civics seem to run slower than 5g Civics
#2 - Greddy Turbo w/ intercooler(new)
Cost: $2200(no other upgrades)
Performance: 14.2 - 15.5 depending on boost
Note: Never seen a Greddy Turbo'd Civic run faster than 15.6 or so(street tires)
#3 - B18B1 w/ B16/GSR tranny
Cost: $2400-2600
Performance: 15.1 - 15.5
#4 - B18C or B18C5
Cost: $3500(good luck)- $5500
Performance: 14.0 - 14.7
Note: Seen a B18C5 5g hybrid run 13.9@100mph
I would recommend the B18B with B16/B18C tranny. Remember Jerome Soh's gutted 5g ran 13's all day with the above setup. Tell your friend happy hunt'n http://www.hostboard.com/ubb/biggrin.gif
Big Kat, those numbers are for hatches, not Coupes like the EX. http://www.hostboard.com/ubb/smile.gif
With the B18B he won't hit low 15's.
With B18C1 he will hit high 14's, low 15's
With B16 he will be looking at mid 15's.
I say build the stock motor and get a greddy turbo kit, and boost around 12psi. Pricewise you cant beat that in my opinion. 2000 for a built motor, and 1800 or so for the turbo,
You also have to take into consideration the install fees. A turbo is something that one can do on their own, only guys who have good experience can install a motor!
I think for the price or just over for a swap you can have a fully built stock motor running a decent amount of boost. The stock sohc motor doesnt have the potential of the bigger motors, but still, is cheaper.
Simply put, you would be faster than a B18C1 hybrid, with I/H/E, and done it cheaper!