Turbo back zorst

[Chipokae]

Hi guys, I need to get some EOI in this. I am currently in negotiations with HiTech Mufflers for getting a turbo back exhaust system (bolt on) made for our colts. BUT i need EOIs on this. Please everybody let me know so i can let them know the numbers. The system is going to 304 SS exhaust 2.25 inches or 2.5inches turbo back. It will include one high flow cat (removing our 2 cat system) and will have a much free-er flowing muffler (brand and type yet to be disclosed) have been told to expect gains of 12-15kw atw. cost will be about 2k (but will vary on the number of interested parties). Please add your comments and questions here. I will need to know the numbers very soon.

[killercolt]

Will there be an option to use Mild steel to keep the cost down.

[lovecolt]

Jeff, you beat me to it :D To be honest, despite how much i like to have a catback or turbo back, i can't really afford a 1 to 2 k of spending. Unless HiTech can half price it if i volunteer my car to testing :p

[Chipokae]

as for the mild steel thing, killercolt, im sure it can be done i'll check with them and as soon as i find out if its possible, then i'll let you know. the price that i've given you guys is only a round about price that they've given to me. however, we are in talks about making it a full bolt on system, so i guess you can do it at home and save a bit yourselves. i'll let you guys know as soon as i find out, i'm expecting an answer by this week.
not many responses it would seem, or have i just not given you guys enough time to reply?

[lovecolt]

Give everyone some time to reply. for me, it depends on price.....

[killercolt]

I think youll get better feedback buy tommorow.

[white horse]

I love to get it done because i am looking it around at the moment, but 2k is over my budget and i would prefer mild steel mandrel bent pipe with stainless steel muffler , one of the exhaust shop people told me the original cat we have on our cars or other cars in these day,it has far more flow capacity than we need to use, i mean its like the original cat we use can cope a car with 2 litre engine or even bigger , if its possible ,i would prefer to keep the original cat to further cut cost , sorry being a bit fussy because been oversea holiday for 2 weeks with my family recently,the air tickets already cost me nearly 5k (4 of us ) and is paying off the credit cards and debt.
Can they ship it to Tasmania

I suddenly remember years ago ,in the magazine one guy have a high flow cat system to put on his NA car but he said he hardly notice the difference and the cat usually cost $400+ if i am not wrong.

[Steve-B]

yeah i would be interested. 2g is quite high, but i understand its a full system from turbo back. So its a dump pipe, SS pipe mandrel bent with a single hi flow cat and a stainless muffler ? the usual, can or do we have choice of muffler and is 2g drive in drive out ? also will they have a dyno read-out of the system before we decide ?
just some food for thought.

[lovecolt]

For how Hi Tech goes about to develop a system for XR5, here's the thread on XR5 forum that tells u guys what you will expect from Hi Tech. From what i can see, its definitely a top job.

http://www.fordxr5turbo.com/forum/index.php?topic=1037.0

[Chipokae]

i should have more details for you guys tomorrow. i will keep you all posted and i will voice your concerns and questions. Please bear in mind guys, that im doing this for the club and the benefit of US ALL, i'm just trying to help fix our problems by giving us some options for upgrades. I will see if i can negotiate a discount for all RColt members, im sure they are flexible.
I was told they just finished making a turbo back exhaust for xr5t and they got 17kw gain atw! thats HUGE! andi was told to expect 12-15kw atw for us. HiTech have a engineering department in bathurst where they "develop" shit before making it..... the details are sketchy but from what i've been told (and from lovecolt's testimony) they seem to do a very good job.

White horse, im sure they can ship to tassie but i dont think they will be able to accomodate for keeping the 2 cats in place. I was told that 2 cat systems are always restrictive and our current muffler saps power. not knowing anything about mufflers, i just have to take their word for it, they are the experts.

Steve-b, Yes, everything you said is what i understand the system will be. Turbo back exhaust all SS mandrel bent pipes with SS muffler. The "about 2g" price is a rough (very rough) price range that he has given to me for the bolt on systems that will be available after the first "development" car has gone through. Dyno sheets will also be available for viewing and the proud owner of the car will post them up for all to see.

Guys, i just need a good list of EOIs from you guys to try and negotiate a sort of "group buy" from them. i know that the details that i've provided so far a generally quite sketchy but im letting you guys know as much as i do, as soon as i do so please everyone bear with me. I understand the 2g is a pretty big commitment for most of us but tell me its not at least tempting. :)

So everybody so far, i will voice your questions and concerns with them and will get back to you all soon. I am also visiting my CF guy this friday so i'll update you all then.

[Steve-B]

good work chipo mate, nice to see someone out there putting the hard sell for colt performance parts up. let me know if you need anything, and note that my car is currently only a weekender for awhile and could be available.
Cheers.

[Chipokae]

ok, here is what i've been told. Mild steel is an option but not recomended by HiTech. they dont use mild steel at all in their work so for them to order it in will cost them more, which means you pay more. they said there will be a price difference between SS and mild, but it will be minimal. they also said mild will rust over time, whereas SS doesnt have as much of a tendancy to rust (if at all).

There is a problem with them getting the flange in from mitsubishi, but it will arrive tomorrow. they then send this flange away to their workshop to have to "laser cut" to fit the bigger pipe diameter (this could take up to one week). the flange then comes back and we go into production for the bolt on system. they say it will take 2 days to make, which means a car must be volunteered for 2 days MINIMUM. during this time, there will be no joy rides or anything of the sort. the only reason you cant use your car for 2 days is because it will have no exhaust during this time.

I'm guessing that a muffler hasnt actually been chosen for this exhaust system yet but that will happen in the days to come.

Nothing further to report. I'll let you guys know more as soon as i know.

[lovecolt]

You know i'm always up for it. 2 days' fine with me :D

[Steve-B]

but do you have the cash lover boi ?

[lovecolt]

but do you have the cash lover boi ?

what i mean is, i can let them use my car to do the research and i get the cheap exhaust :D

[Steve-B]

keep us updated chipo, there is no one is aus making colt exhausts, so they will def get afew customers if they fab something up.

[Chipokae]

need some people who want the exhaust to please come forward and at least express some interest. im not asking for a commitment, just an idea of the number of people considering turbo back exhaust as an upgrade.
COME ON GUYS LETS STIR SOME INTEREST UP FOR THE BENEFIT OF OUR CARS.

[|2colt]

Hey there..i would be interested in purchasing the system. Just not atm as im still trying to get the car fixed after the bingle.

[lovecolt]

i might only be able to express interest in a catback.....

[booga]

yeah put me down ill get 1!
gota do some work b4 teh track

[Chipokae]

good to hear from you booga! where you been?
thanks lovecolt and |2colt i'll make sure you 3 are mentioned to hitech.
any others?

[Chipokae]

Deadly Poison is Brewing :p

[Steve-B]

any news ?

[Chipokae]

Yeah steve, plenty of news. Deadly Poison is Brewing! :D
Friday...

[Wacolt]

I'm keen.

[Chipokae]

good stuff Wacolt! I'll mention you to them too. There will be Dyno results by early next week.

[Steve-B]

turbo back ?

[lovecolt]

Can't wait. Just make sure they test it for engine light. Remember: engine light might not come on during dyno test. Its really when you suddenly accelerate (foot to the metal), then the engine light shows.

[Chipokae]

yeah guys this is full turbo back. get on the band wagon. let me know you want it and i'll ask for discounts for you all. and it would be good if you could all PM me your numbers.

[Steve-B]

just freaking post some pics and some figures !!!!!!
your figgin tease !

[|2colt]

ok its friday and nothing yet..... u %^& lol......im sitting here waiting :( ...Thanks for all the effort mate you have made to getting all the testing done.:)

[Chipokae]

A STORM IS BREWING

http://i123.photobucket.com/albums/o306/Chipokae/oldstuff.jpg

http://i123.photobucket.com/albums/o306/Chipokae/TigWeld.jpg

[27AME]

looking good I must say, I would want that pipe just coming straight out the back, no mufflers, let me know of a price to get it done like that, would be exactly what I want. That looks like a 3 inch system? If so, yum :)

[Steve-B]

its monday chipo...

[Chipokae]

alright, here it is, the finished product. it sounds good, it looks good but i cant post up power gains yet. There hasnt been a second dyno on the anoymous doner's car yet. but the doner's car did get 99.5kws at the wheels before the getting the exhaust. this is 99.5kws with k&n panel filter 8am on a cold morning and 98 octane caltex fuel. you'll have to wait until the owner of the car has time to go for the second dyno before anymore info can come out. I have negotiated a 10% discount for all RColt members. it will cost 2175 before the discount.
I do have to let you know though. this is still a 2 cat system. our exhaust has 2 oxygen sensors and as such requires 2 cats. it has two 200 cell high flow cats. i'll post up pictures for you all if the owner allows me to.
I have driven the car. it feels more responsive, and revs more freely. i believe lovecolt has some pictures too if he would like to post them up.

so here is the break down for you all.
2.25 inch, 304 polished stainless steel, 2 high flow cats from america (catco), straight through muffler and a beefly looking tip.
the results are more response, free-er reving engine and a super nice exhaust sound. its not super loud but sounds MUCH chunkier than stock. it idles very much like the stock system though. no droning and sounds really good at about 4000 revs.

[Chipokae]

ok, here it is guys.

http://i123.photobucket.com/albums/o306/Chipokae/dynoedited-1.jpg
Before exhaust 99.5kw atw

http://i123.photobucket.com/albums/o306/Chipokae/muffler3.jpg
exhaust on photo 1

http://i123.photobucket.com/albums/o306/Chipokae/muffler2.jpg
exhaust photo 2

http://i123.photobucket.com/albums/o306/Chipokae/Muffler1.jpg
exhaust photo 3

and here is the bonus!! SOUND FILES OF BEFORE AND AFTER!! the recording was taken both exactly 30cm and 45º away from the exhaust tip

http://www.youtube.com/watch?v=nlvOxgqeyD4
Before

http://www.youtube.com/watch?v=IWPUx-Jrga8
After

http://www.youtube.com/watch?v=UVNfFSC-idA
3500rpms after

ENJOY

[lovecolt]

Yes yes! I can testify that the Hi-Tech exhaust does look very very well made. As mentioned by Chipokae, the idling sound is almost the same as the OEM. But it sounds so good when the car's running.

The pricing is indeed very well worth it. Remember, this price includes 2 high flow cat which ain't cheap.

[|2colt]

Looks good. How does it sound when its actually moving like normal driving and spirited runs? Was 2,25 inch the preferred diameter or couold we go larger?

[putty_sydney]

Can't wait to see the new dyno results

[lovecolt]

A pic from me on the exhaust.

http://rcolt.com/pictures/hitech_1.jpg

[27AME]

Regardless of what anyone says, 2.25 inch was definitely NOT the best option.

Also, I am pretty sure that tingtw has removed both cats from his system ;)

[Rdster]

our exhaust has 2 oxygen sensors and as such requires 2 cats

I don't know whether this helps or not, or applies to the RC...
I have owned vehicles previously, that had 3 cats, and 2 oxygen sensors, as a standard fit.When the exhaust was updated, and modified to 1 cat, the 2 oxygen sensors were joined in series.No CEL was ever encountered.
Just my 2c worth.:)

[lovecolt]

I don't know whether this helps or not, or applies to the RC...
I have owned vehicles previously, that had 3 cats, and 2 oxygen sensors, as a standard fit.When the exhaust was updated, and modified to 1 cat, the 2 oxygen sensors were joined in series.No CEL was ever encountered.
Just my 2c worth.:)

That's what i thought and suggested to the owner of that rcolt. Definitely doable.

[Chipokae]

yes, that person's car is going back into hi tech to see if it is legal and possible to remove one of those 2 cats next friday. its all happening y'all!
the second cat was left in to see if they could avoid the CEL coming on. now they will trial just 1 cat on the car. see what happens....
if it works then it should bring the cost down by a further 25% or so. lets all hope for the best.
27ame>> you think a 3 inch exhaust would be beneficial? wouldnt that be a bit overkill?

[Macca]

whats the diameter of the standard exhaust, i would have thought 2.5" minium.

and have some of my posts gone mising?

[Rdster]

to see if it is legal and possible to remove one of those 2 cats

Technically, you can run 1 cat, if the vehicles passes the emissions test.


Regardless of what anyone says, 2.25 inch was definitely NOT the best option.

There is a scientific formula available to determine what diameter tubing is best for a particular engine.

Here: http://victorylibrary.com/mopar/header-tech-c.htm

And Here: http://www.bgsoflex.com/bestheader.html

[lovecolt]

There is a scientific formula available to determine what diameter tubing is best for a particular engine.

Here: http://victorylibrary.com/mopar/header-tech-c.htm

And Here: http://www.bgsoflex.com/bestheader.html

That's abit too scientific for me. Care to just disclose the answer :p

[killercolt]

What was the power figure the Colt ended up with.With the new exhaust.

[Steve-B]

dyno is being done on friday, then they are removing one of the cats and will dyno it again.

[27AME]

The best way to find out the best diameter is through trial, easiest way to put it. I am going for a 3 inch, no questions asked. Will also be having a screamer pipe made ;)

[killercolt]

Did you guys get the power figure on the new Exhaust

[lovecolt]

Unfortunately, there's a broken down s2k on the dyno when we are there for the free dyno organized by Hi-Tech. We actually went there twice and the s2k still can't be moved off the dyno. Therefore, hopefully we will get the dyno result soon

[killercolt]

Thanks Lovecolt

[aby82]

has this second dyno run occured yet?!?!? :eek: lol

[White Ralliart Turbo]

^^^ yeah i second that question???

[Steve-B]

hasnt been and most likely wont be

[aby82]

ha lol k.....

[Chipokae]

yeah, sorru guys, havent had time to do it yet. its quite a drive back down to the place where the dyno was last done. when i have time, i will organise for this to happen. however, having said all this, i dont see that there is really all that much difference between pre and post exhaust, the turbo just seems to spool a little faster but there isnt really much difference apart from that.

[aby82]

cheers chipo ;)

[Steve-B]

but chip, do you have a MBC or non stock air filter ? cause thats where the turbo back exhaust will come into its element...oh and also when you get the RPW extractors...lol

[ommeh]

but chip, do you have a MBC or non stock air filter ? cause thats where the turbo back exhaust will come into its element...oh and also when you get the RPW extractors...lol

you mean turbo manifold ;)

[Steve-B]

a turbo manifold "extracts" emissions from the cylinders...

[Chipokae]

but chip, do you have a MBC or non stock air filter ? cause thats where the turbo back exhaust will come into its element...oh and also when you get the RPW extractors...lol

I have K&N panel filter, im working on a MBC now but installing a A/F ratio sensor. that'll happen this weekend, then i have no idea when or IF i can start playing with MBCs.
I'd love to get extractors steve, but dont they cost an absolute !BOMB! :eek: from RPW?

but soon, soon, i will have upgrade

[Steve-B]

i can help with the MBC, i tuned mine..

[Chipokae]

you tuned yours? how?

[Steve-B]

on the streets of course...but lets keep that btwn us, and the ecu will always feed in fuel, i had the same idea with an a/f gauge, but it aint nessisary man.

[Macca]

ill be doing my mbc soon, along with the k&n pod filter kit, im quite tempted to run an a/f guage after, but install a seperate 02 sensor. ( i can get my leading hand to install the sensor, he has a tig and lathe to do all the hard work)

[why_bother]

Get the TMR upgrade macca, same results with no dodgeyness about it, and why with the K&N filter, didn't results show that unless you run a FMIC or full aftermarket exhaust it actually reduces power? Last review I saw on that K&N pod filter setup was that it was a hot-air induction system.

see post http://www.rcolt.com/showthread.php?t=905&page=6

[panaua]

i have changed my exaust to 2.5inches from turbo and back, with only a racing cat, and a mufler..
The sound is owesome...
My pick boost is 1.35 from 1.25 with whe evc..

here is a dyno from dashdyno ..http://img411.imageshack.us/img411/1676/panauaczt12barbcar4.th.jpg (http://img411.imageshack.us/my.php?image=panauaczt12barbcar4.jpg)

[Macca]

i already have the part comming, im not going to run the pod filter the same as the reccomended position.

For the price, the tmr upgrade, doesnt seem "right", its nice with the warrenty keeping and all, but a longer bleed line, it just seems dodgie, and i can think of why he had done it, and how it could work but i cant be certin i have the right methodolgy.

[bunnybash]

i have changed my exaust to 2.5inches from turbo and back, with only a racing cat, and a mufler..
The sound is owesome...
My pick boost is 1.35 from 1.25 with whe evc..

here is a dyno from dashdyno ..http://img411.imageshack.us/img411/1676/panauaczt12barbcar4.th.jpg (http://img411.imageshack.us/my.php?image=panauaczt12barbcar4.jpg)

wait a minute you got 150kw?!?! at the wheels!!!

[Macca]

he is running 1.35 bar man.

[panaua]

not at wheels..
1.35 pick...1.2 steady since 4500 and then drop to 0.85 at 6500

[ommeh]

HOW the hell did u pull that of without going into limp mode?????

[panaua]

The magic word is EVC.. :D i have posted it, to other thread..

[Oz.eColt]

so what happened? Hitech turbo back exhust didnt produce the 10KW ATW??