what header and intake manifold will fit a std engine and give it a good power gain and around how much would be a good price used? would a si fit and would it be worth the swap?

thanks for the help guys!

 

any civic/delsol SOHC header will work either vtec or non-vtec yrs from 88-2000

 

I've got a 90 Civic Si exhaust manifold that will fit.

AIM: sitinonthejohnny
email: sitinonthejohnny@netscape.net

30 shipped


[Modified by slowmanEF, 9:00 PM 1/21/2003]

 

Im not really interested in the headers but thanks for the response. this is basketcase but i can onle post 5 things every 24 hours so i had to make a new name ! is it like that when your a member? well anyway im lookin for the best intake manifold that i could probaly get for under 250 bucks used im also lookin for a real nice used sohc head and i was wondering if i should go vtech or if there were any alternatives that would be less complicated to install but still gave me a good power increase. Thanks alot for the help sorry for the paragraph but i cant be wastin my precious 5. IM me if now about or have anything im lookin for. Thanks again!

 

my bad my names REDSTDHB send me an im

 

You should do a MPFI swap.
Im selling a Si intake manifold, came out of a 90 CRX Si.
Everything from the manifold up. That'll include the manifold, injectors, fuel rail, throttle body, tps sensor etc.
Let me know if you are interested.
hectorc99@hotmail.com

 

you can't just swap the intake manifold, you need to do an mpfi swap. My civic Std went from 70hp at the crank to 77hp at the wheels and dropped about 2 seconds off of the 1/4mi. with only the mpfi swap and a cheap ebay short ram intake. here's my standard cut and paste writeup on mpfi swaps:

The MPFI swap is the best mod you can do to your car short of an entire engine swap. and if you do want to do an engine swap, you have to do an MPFI swap anyway. our cars come from the factory with 70 crank HP, the MPFI swap pushes us up to somewhere around (this is a guess) 110. Plus, with the larger throtle body, your car will be more responsive to other mods like I/H/E and cam. the DFPI TB is so restrictive, it bottlenecks the air flow so much that any other mod you do doesn't really do any good.

parts needed:
I recomend getting all of these parts from an 88-91 civic EX or Si, or CRX Si (I've been told that the CRX Intake manifold doesn't flow as well, never saw proof though) There are some other options, but for simplicity, it's best to get it all from one of these. also, If you have a manual trans, get the parts from a manual trans donor car (and auto for auto) I got my parts off of Ebay, a couple of broken sensors and bad parts cost me in the long run.

1. Intake manifold with Injectors, Throtle body, and all sensors intact
2. Injector resistor box
3. ECU
4. Distributor (the EX/Si dizzy has an extra sensor in it that you will need)
5. engine wire harness (you'll need to steal some plugs off of this)
6. New intake manifold gasket (if the TB or any sensor gets removed, it will need a new gasket as well)
7. New Injector seals (If the new intake mani has been sitting for a period of time, the old seals will probably be dried out and leak)
8. New Cap and rotor (if you recently replaced yours, the cap, rotor, coil, and Ignitor from your old distributor will all fit the new one)

The swap is easy to do, an experianced mechanic could knock it out in less than a day. Be prepared to have your car down for a week just in case there's some bugs to work out though. You never know when you're using used parts, don't get stranded!!

The mechanical stuff is pretty basic, especially if you have a Helms manual. (I did it with a Haynes manual because I'm too cheap to buy a Helms) The only thing I can say is make sure everything is clean and seals properly. When I did the swap on my car, The bracket that holds the back of the manifold up was bent, it was pushing up on the back of the mani and it wasn't allowing the gasket to seal properly. I also had problems with my injector seals leaking and the distributor had a bad ignitor.

The part where most people struggle is the wiring, your current setup only has wires for 2 injectors, you'll need to run wires for 2 more. Also, you need to run wires for that new sensor in the distributor I mentioned above. the best write up I've seen on this is:
http://hybrid2.honda-perf.org/tech/4gdxtozc.html
When I did my swap, I did all of the wiring with NO splices under the hood. Everything looks completely factory. I Just wish I took pictures of the process.


as far as a header is concerned.... any 88-91 header will fit. Accually, any D-series from any year will work, but the O2 sensor bung is located in a different position on the newer models.


[Modified by thumpu77, 9:39 PM 1/21/2003]

 

would a 92 cx engine or harnes have anything i need my frends got one chillin outside and he gona throw it out? it would a least have the **** from the wireing harnes that i need right? and how did you put on the clips without spliceing anything thats got me puzzled?
Thanks for all the help, much apreciated

 

I had an entire Si harness, and my std harness. I pulled the loom and electrical tape completely off of both and proceded to pull out the wires I didn't need and replace them with the wires I did, pulling pind out of plugs and putting the pins of the new wires in. For the 4 wires that need to be run from the ECU, I used the old Distributor plug and mounted it on the pass fender next to the factory plug and ran my wires through it so I could just unplug them when I pull my engine. when I was done re-routing, I put all new loom on the wire bundles and plugged it all in.


[Modified by thumpu77, 11:12 PM 1/21/2003]