C2Motorsports 2.5L SRI: Significant Gains For Your N/A OR FI Project

[WhiteBeanMKV]

-taylors was a 198whp with UM sri and UM tune, but then lost a TON of power when exhaust was installed...

So this car with stock exhaust made 198 whp then LOST hp with the addition of an aftermarket header and exhaust system? That's a scary thought. Anyone know why this would be? I have both the SRI and a header back system on order and would be pretty disappointed to pay more to get less hp. Only reason I'm doing exhaust is for the few extra ponies. Don't really care for the extra noise personally...

[vwluger22]

So this car with stock exhaust made 198 whp then LOST hp with the addition of an aftermarket header and exhaust system? That's a scary thought. Anyone know why this would be? I have both the SRI and a header back system on order and would be pretty disappointed to pay more to get less hp. Only reason I'm doing exhaust is for the few extra ponies. Don't really care for the extra noise personally...

I would say lack of back pressure would be a good guess. Hopefully this spring I will be getting the car on a dyno with BSH intake/C2 sri/C2 tune/eurojet header highflow cat/stock exhaust.

[WhiteBeanMKV]

I too went with eurojet, 2.5" system. Keeping stock catalytic converter. I have a Carbonio CAI. Hopefully they were running a 3" system as that'd be an easy answer for the loss in power.

[vwluger22]

That car also has the UM SRI I think and not the C2 that could be a factor but idk about that. Every car is different and we had seen that in another thread of dynos this past week.

[pennsydubbin]

I too went with eurojet, 2.5" system. Keeping stock catalytic converter. I have a Carbonio CAI. Hopefully they were running a 3" system as that'd be an easy answer for the loss in power.

If I remember correctly he's running the eurojet 2.5" exhaust

[WhiteBeanMKV]

Not cool... I guess I'll see what happens. Now I'm thinkin keep stock exhaust and just do sri/tune.

[nothing-leaves-stock]

none or low back pressure can kill a lot of power on NA.
not 2-5 whp...like 10-20whp at times...

my personal car when testing dropped 28whp when we did a SUPER high flow 2.5'' exhaust with no cat and header...swapped it a 2 muffler setup and gained it back...

[WhiteBeanMKV]

So does an EJ header, stock cat, and 2.5 inch EJ catback sound like a safe bet with the sri/tune?

Also, after my install I can promise a posted dyno run. Hopefully it'll help a lot of others out there with the same questions I have. Just gotta find a shop with a dyno in Jacksonville. Shouldn't be too hard...

[nothing-leaves-stock]

EJ header and a stock cat won't fit together....you'd have to cut and weld the stock cat to fit.

[SimpleStaple]

EJ header and a stock cat won't fit together....you'd have to cut and weld the stock cat to fit.

This. Gotta build a custom mid-pipe.

[WhiteBeanMKV]

There's a handy piece of info I've never see stated anywhere the headers are sold :/
I'm glad I ask so many questions here...

[darkk]

Tough crowd...

[twotech]

Might be a bit off the thread topic but can anyone recommend a good shop to get the C2 SRI/C2 Tune done in the Staten Island, NY area?

Also, I currently have 57K on a 2006 Jetta and its a daily driver, doing about 17K early. How could this tune impact the reliability of the car?

Thanks

[nothing-leaves-stock]

we are near allentown pa. about 60 miles? south of you, down RT78
you can purchase the SRI thru us, have us install it here and do the SRI tune for you all in one stop!
the SRI and tune will be no issue for reliability at all.
contact us if your interested!
610-282-5487
nothingleavesstock@juno.com

thanks, josh

[Castlesofsand]

I know that the lack of dyno sheets is a deal killer for most, but I agree with nightshift (God, I can't be lieve I just said that). Ture, its taken an abnormal amount of time for a C2/C2 dyno run. True, it seems like there is something to hide. But at least they are making products for our engine.

Personally, I am going with the C2 mani for the pure fact that a UM/UM setup isnt worth the extra 400 bucks for 4 or so more horse power. Plus, it looks better IMO because it's proportional to the rest of the bay (my opinion, respect it).

Thanks to C2 for at their patience with the community and for not saying Fcuk it and just stopping all development.

Not worth the extra $300 ($999 for C2 and $1299 for UM) but yet you have to pay around $425 for a catch can with the C2 manifold?

[itskohler]

I totally agree. I am going with C2 when the time is right for me to pull the trigger.

[nothing-leaves-stock]

you dont NEED a catch can....

[Castlesofsand]

you dont NEED a catch can....

And the alternative is... letting the oil drip on the ground?

[nothing-leaves-stock]

it doesn't.... why do i know? have done a bunch that way with the C2 AND UM.(why um's too? the hose collapes shut under vacuum and doesn't work as it should unless you hard line it...)

its NOT needed, yet you CAN use a can on either.
UM's just has a hole tapped in the intake. you COULD do the same to the C2's NO differnce there.

but all in all..you do not need it....oil doesn't drip on the ground with OEM valve cover.

[Castlesofsand]

it doesn't.... why do i know? have done a bunch that way with the C2 AND UM.(why um's too? the hose collapes shut under vacuum and doesn't work as it should unless you hard line it...)

its NOT needed, yet you CAN use a can on either.
UM's just has a hole tapped in the intake. you COULD do the same to the C2's NO differnce there.

but all in all..you do not need it....oil doesn't drip on the ground with OEM valve cover.

Pics or it didn't happen.

[nothing-leaves-stock]

i have a build thread on 2 already or more...
C2- how to instal a C2 intake.
um- NLS road racer

plenty of pictures and info in both threads and other have done the saem with no issues...
and most we have done.... people daily drive them....

[Castlesofsand]

So a "down draft pipe" which goes from the OEM PCV valve to underneath the car does not drip oil?

[nothing-leaves-stock]

correct on the oem VC NOT aftermarket....i know from experience...not guessing or internet myths.

[thygreyt]

So a "down draft pipe" which goes from the OEM PCV valve to underneath the car does not drip oil?

In my experience with the eh valve cover, a 1st run cover:
I have it set up as a downdraft, and I haven't leaked a single drop of oil.

Sent from my HTC Sensation 4G using Tapatalk 2

[nothing-leaves-stock]

good! thanks fred.

[Castlesofsand]

Good to know... so maybe i can save the $300 and go with C2. Now... which software to use...

/canOfWorms

[thygreyt]

So a "down draft pipe" which goes from the OEM PCV valve to underneath the car does not drip oil?

btw, why are you acting out?

no one here is an ass... dont be the first one.

we are all trying to help, if you know so much then dont ask and simply go away.

[nothing-leaves-stock]

"looks" new here. all the questions have been answered before BUT i will gladly answer again...if people wish to listen

[pennsydubbin]

"looks" new here. all the questions have been answered before BUT i will gladly answer again...if people wish to listen

what a nice guy you are

[GTACanuck]

Nightshift, IS THAT YOU!?!?!

[Bennett@C2Motorsports]

Now... which software to use...

Where's my boy Fred?

*ding, ding*

ROUND 1!




(we will have a dyno soon of C2/C2 )

[nothing-leaves-stock]

fred's a good guy today...all his post are swell

[thygreyt]

fred's a good guy today...all his post are swell

lol... i tend to behave... sometimes...

[thygreyt]

Where's my boy Fred?

*ding, ding*

ROUND 1!




(we will have a dyno soon of C2/C2 )

to keep up with my behavior:

software is a personal and a complicated decision, sometimes.

poeple chose based on price, or reviews, or avaibility, or closeness to dealer, etc.

lets start simple:
what are you looking for?
would you be willing to ship your ecu?
how far do you want to take the car? (power goals)
and... um...do you see yourself going outside the norm? making custom things and rare mods?

[nothing-leaves-stock]

lol... i tend to behave... FEWtimes...