Hey Erick, any problems with people that add both headers and a larger pulley?
Mine was fine until I added both. Although both were custom, 192mm pulley and long tube (3-1 collector under car), I got detonation, and am having to rework my EFI and tuning. If I remember correctly from benzworld that SteveL had similar detonation with his FF shorties. I would assume that if you had both pullies and headers, that tuning isn't just "optional" anymore... is this a correct assumption?

 

Agreed. I might be willing to pay a little more for long tubes when the time comes. I dont even mind modding my exhaust or building a completely new exhaust. Thing is, once we do the basic performance upgrades (cai, pulley and chip) it seems like the next logical step. Breathe in and breath out.

Now when you say 2.5" ID i assume you are refering to the collector right?

 

Hey guys!

First and foremost, I'm sorry for posting the picture of the C32 headers on our website. We decided to move forward with the dedicated Crossfire section and I moved all of the products over.

Erick and I feel that the market is good and it would be a wise choice to offer the headers for the SRT6, non SRT, SLK32, and SLK320. The only thing holding us back is the effort required to install them. Lifting the motor is a tough task and might deter some of you.

So, can I get a VIN number from one of your SRT's so I can input it into our system to see the labor involved?

I can compare the SRT with the C32 and should be able to determin the number of hours required to install these.

Secondly, if you are ready to commit to the project, please add your name to the list. If we can get 5 people to commit, then we will get started on these ASAP.

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On the C32 with stock heads, a 185mm pulley will cause the IAT's to skyrocket in the upper RPM band. Upgraded cooling is a must and even then there is no guarantee. 192mm is pushing the limits of the SC. Efficiency will become an issue at high RPM / high load situations.

I bet your car is a monster up until 4k rpm.

 

Hey sidez...can I get your VIN? PM it to me if you will. How are things going?

 

I can assure you that these are not cheap knock-offs. The 3-1 collector headers for our motor make less power than the log style headers we are selling.

I have a set of Evosport headers on my car now. I lost 15whp after the install and have not gained it back, even with more custom tuning. I wasn't a fan of the log style until they started making proven power. If we had more room to work with, the 3-1 equal length headers would be the way to go....but we don't.

 

Hey Jerry, pleasure to have you on our forum.. I PMed the VIN

Things are going well.. just received a new set of rims after 3 months wait heh.. and still won't put em on till the salt clears prolly by March..

 

If you're going to pursue this seriously and want the max performance out of this engine without a total re-manufacture... Perform all of your mechanical mods before your electronic ones (ECU tuning). I'm sure you understand what I'm saying... Tear the engine down and have it ported & polished by Extrude Hone, have them bore the exhaust ports + 6mm, and intake ports + 3mm. And have them polish the inside of the intake plenums. Disassemble the Supercharger and polish the inside casing to a mirror finish... install the Schrick Cams. Send your injectors to RC Engineering to have them flow tested and balanced at the nominal spec I listed with Stan Weiss http://users.erols.com/srweiss/tableifc.htm. polish your intake Y pipe... Port your TB by + 1.5mm and install a new butterfly valve.

Remove your OEM IC and acid wash the fins to get the MFG crap out of it... Re-plumb your IC plumbing with a cooling system that is seperate from the engine cooling using 3/4" tube. Wrap the bottom of your IC in heat insulation before re-install... purchase "finn tube" to replace all your IC / HE plumbing tubes.... and wrap all other IC / HE plumbing tubes / connections with insulation. Replace the HE with a Bell Heat Exchanger...

Alright... I'm tired of typing I'll finish this later....

 

Actually, I can't even pass 3k without it detonating. Without headers and just the 192mm pulley, it was a monster through all RPM's. And the IAT's stayed below 150F, which was only ~60F over ambient. I'm using a larger heat exchanger plus methanol injection tapped directly into the intercooler. It wasn't until the long tube headers that I started having problems. I will be using a 4-bar map sensor (with barometric correction) on aftermarket ECU and I'm in the process of upgrading my injectors and then all I'll need to do is tune.

 

Is there any price break for being one of the first five if so sign me up. If not I will wait it out, I have decided against making my own too much work involved. Once you guys have a jig made up it should be pretty easy from there on out correct?

 

The 4k rpm limit is a problem we faced on our shop C32. The pulley was 185mm, so that makes sense with yours. I bet the dyno graph looks like crap too.

If you are going with a standalone system, then you should be good. Keep in mind that the stock ECU will retard timing starting at 95° F as follows:

The ignition timing point is retarded by the ME-SFI control unit in line with the intake air temperature (charge air temperature in the case of supercharged engines) and "load" (engine speed and air mass).

The ignition timing point is retarded only if the engine is operating at a high load and begins from an intake air temperature of approx. +35 °C and reaches its maximum at approx. +65 °C.

Example for full load:
95 °F --> (retarded 3.5°crank angle)
113 °F --> (retarded 6.3°crank angle)
149 °F --> (retarded 9.5°crank angle)

The maximum timing retarded is 9.5°crank angle. So, at 150°F, the system is already pulling the maximum amount of timing.

I'm running a 185mm pulley on my car and my IAT's have yet to climb above 100° F, even during multiple (25+) 1/4 passes in the same day. The car pulls like freight train and is currently the second fastest C32 in the world. If I could get traction, I would easily break the record.

I have massive cooling mods that have helped a ton. LET HE, Johnson Pump, Canton IC Tank, Custom lines, etc.



If you can keep the charge cool, you would elminate half of your issues. The only other issue that I see would be the extra fuel needed for 22+psi.

 

Thanks man! Where are you located?

 

Once we have the jig complete, volume production shouldn't be an issue. The price that is on the website now is good for the first 5 units we sell. I know that after the new year, the cost will go up slightly for all models, including C32, SLK32, SRT, E55, etc.

We have a fabricator on staff that is designing these per our specs. We then send the units out for High-Temp coating, which is costly. We are researching other companies now, but if we have to stick with our current provider, then the cost will need to rise slightly. They changed the prices on us. Currently we are locked in for a lower price due to a previous arrangement, but we are nearing the end of that agreement. We don't want any shop touching out headers, so a reputable company is what we are seeking.

Again, we are trying to be up front with you guys. If we can get 5 people to commit now, then the headers would be included in the discounted price on the website.

Keep in mind that Erick and I are doing everything we can to keep the price low, but certain things are out of our hands.

 

sure man.. I am Located in New Jersey, Bergen Country.. too damn far from you fellas and all the real action of Texas and Cali...

 

I'm in Chicago, but I always make trips to Ohio.

 

ok, we already have one person committed from the regular crossfire...

i would like to have one SRT6 to commit so that we can have before and after dynos, track testing, etc...

any takers?

we are going to build these now, i talked to Jerry and we both think it is a good idea

i will have my fabricator start on these tomorrow and we should have the first set ready right after christmas...

PAY ATTENTION to this part of the post: the $950 shipped price will be for the first 5 set of headers...the price will go up after that, so if you want the headers at the discounted rate, then make sure you get your order in soon!

please let me know if you have any questions...thanks!

 

I assume they are coated mild steel?

Rather than coating them can you just make them out of stainless steel?

And did we determine the srt-6 and n/a crossfire headers to be identical?

 

because making them out of stainless steel would price me out of the market...i would not mind doing a custom set, but it would be on an as order basis only, SS headers would cost $1500, SS is expensive...

the production peices will be mild steel coated...

 

when would i have to cough up the cash?

 

well, since i have gotten the question 3 times now, a couple through PM's, we will do this...

if you want to be included in the first production run at the $950 price point, then i will need a $250 NON-refundable deposit to hold your spot...

i will NOT limit it to 5 sets only, my partner pointed out that he thought it was a little unfair to do that and i agreed, but the deposit would need to be secured via check, paypal or credit card by January 1.

anyone not securing their deposit by January 1 will pay the regular price on the headers.

also, if you are willing to test fit the first set of headers for us and do before and after dyno runs, then i would give you the set at my cost...

please let me know if you have any other questions...thanks!