1.6L Headers Available ???

Marcor the North American importer and distributor of Genie exhaust products wanted to test fit a 323 1.6L SOHC header on a '92-'93 MX-3RS (1.6L SOHC) . The problem was no one wanted to lend them a car to do the test fit and development even, though there was a lot of people saying they wanted them. They are still available in mild steel and stainless steel for the 8valve 1.6L SOHC. For those of you with late '93 or newer MX-3RS with the 1.6L DOHC, There is not much of a chance that there will be one made for this engine . Marcor was trying to a feel for the demand before asking Genie to go through the product developement process of making a new header for the DOHC. Response was very poor, totalling three people. Now that the car is been out of production for more than a couple of years chances are very slim that any company will consider manufacturing one now. Let Peter at Marcor know your are interested at sales@marcor-genie.com or at 1 (800) 263-8621 Ext224. although at this point in time I believe it is to late.


Pictures of a 1.6L SOHC Turbo


 

I first saw this MX-3 at Napierville Dragway in June 1998. Talking to the owner Pierre-Luc from Trois Rivieres at the track this year found out a few more details about his  car. The turbo hardware is a hybred KKK turbo from two Audi's (similar to a T3/T4 combo).  Features included front mounted intercooler, oilcooler, 2 additional injectors and MSD ignition system. The car has also been recently painted a "Burnt Orange" metallic a color that was used on the Isuzu Rodeo for part of one a model year.


Stock Header Modifications

At the show in Albany I saw a couple of points of intrest on Jenn's MX-3RS. Her car has the 1.6L SOHC (not the 1.6L DOHC found in the later models). Everybody asked me if I know of an aftermarket header for the 1.6L. After seeing Jenn's car the factory tube header, the primary tubes are a little short but other than that, the design isn't that bad. She had the heat sheild removed, all the tabs ground off, sandblsted and ceramic coated. They looked as good as any aftermarket parts you could buy. What can be done to improve them? If you were to cut off the collector flange and extend the primary to where the flex joint ends, you should see an increase in power and torque. If you are good with a welder, companies like Hooker, Hedman and most other header manufactures sell pre-bend tubing and collector flanges.

Ceramic coating the headers also improves the header performance by keeping the exhaust gas temperature higher farther down the system. Hotter gas temperatures flow faster which in turn helps to pull more air in the the engine on intake stroke and keep the exhaust gases flowing through the rest of the system.


Air Intakes

My custom air intake for my (8 valve)1.6L SOHC 323

I didn't plan to modify the the 323 but I did do about $500 of junkyard tuning. I made a velocity tube intake system out of 2.5" mandrel bent pipe. One unusual feature I incorporated into the pipe is a 2.25" anti reversion tube TIG welded in the center of the S-pipe. The filter adapter on the Air Flow sensor was a spare piece from PRM that I got from a friend. Not including the filter the total cost was around CN$60 in materials. Note: the larger air flow meter from a (F2) 2.2L. I also ported the cast iron exhaust manifold which is a lot better that most tube headers and had the exhaust enlarged to 2.0" The final modification I made to the engine was to change the cam to a custom performance grind that was given to me by a friend that races 323 in the past.

Jenn's Custom Set-Up

Jenns car also had a custom made intake pipe and cone filter made by DOWN FORCE CREATIONZ (914) 294-6332, the shop the helped her do most of her modifications

Adapt any Cone filter to the '92-'93 MX-3RS

Picture of adapter for Nippon Denso (Bosch) trapdoor type Air Flow sensor with generic cone filter.

Adapter sell for approx. CN$25 Available from Lazer-Auto or most other performance parts retailers

PRM's new Air Filter Kit

PRM is a new Canadian manufacture of air intake systems. They will be releasing a kit listed for the 91-96 Escort GT. Under the hood the 323, Protege, Escort GT and MX-3 with 4 cylinder engines have intake systems are basically the same. This kit should fit with little or no modification. The intresting feature of this system is the cone filter is installed backward and is enclosed in a venturi like housing. Physically this system is very small filtering area but don't let size fool you. On Honda's this system really seems to work. There is a significant gain of power more so than a conventional cone filter and 3"diameter plastic or metal tube. 

Read the Original messages and picture from Sean Allgire that were posted to the MX-3 mailing list

Check out the Escort GT Performance Homepage

Almost any modificaion that can be made to the Escort GT's engine suspension and exhaust can be made to the MX-3RS. I have been receiveing E-mails from David Evans as well as several other EGT & Protege owners since the 4 cylinder MX-3 is very closely related. David has posted very good instructions on fitting a K&N cone filter on his EGT but it should also work on the MX-3RS. Subscribe to their mailing list you never know what info will come your way.

GUDE PREFORMANCE

I completely forgot that Tom Bitanga and myself had talked about Gude Performance about a year ago and what services they offered for the B6 & BP 4 cylinder engines. Tim, one of the guys that E-mails me on a regular basis reminded me of this when he sent this message. 

I ran across some info that might be helpful with getting your 4-banger section running. I got in contact with a company in California by the name of Gude Performance they informed that they can and do performance camshafts,head port and polish, enlarge the throttle body and enlarge the intake manifold. The person I talked with rattled off a thousand differant prices with core charge without core charge. These parts can be obtained by sending your part to them. They are going to get back with me about if a package deal is available for the stuff mentioned above or if they only charge for individual items. The person I spoke with also mentioned that they offer headers for the MX-3 also. All the info I recieved was for the 1.6 DOHC 4 CYL. When they call back I will Check to see what is available for the 6 CYL.Hope this info is as helpful to you as yours has been to me.!! GUDE phone number is 909-244-3533 Thanks Tim