i am fully spooled on the 2871, which isnt that much smaller by 2800.. course i dont run t3 turbos, so u may be right, my bad.. still sounds like a boost leak..
What have you done to your MSP today?
- Thread starter baconbitz
- Start date
i am fully spooled on the 2871, which isnt that much smaller by 2800.. course i dont run t3 turbos, so u may be right, my bad.. still sounds like a boost leak..
theres no way a high flow cat will casuse you to lose that much psi and horsepower. i ran catless and catted and its hardly noticeable at 200whp (about where im at), so its prolly a 5-7whp loss from the cat. even at 500 horse power, say we double the loss, thats still only 15whp. something is afoot.
Mazdaspeed2oo35
600whp - 600wtq at 30 PSI
I know it sounds impossible and crazy, but i have no leaks, no exhaust manifold cracks, nothing is wrong with the car, this happened right after installing this Cat, probably is installed backwards, i didn't noticed any arrows with the direction of the Cat, but car was boosting fine, and working fine. i mean the car pulls hard just wont go over 10 psi, and it feels like something is holding the car from making power. feels like there is something blocking the exhaust and the turbo can't breath, plus now is very slow spooling, it spools at around 4.5k rpm, when without the cat is at 3.9k i didn't change anything else, no settings, nothing, just removed my test pipe and install the cat, that's it. once i pass inspection I'm going to remove the cat and see if everything is back to normal, which i think is going to be... my afr's are perfect, exhaust temp, Vac readings, boost settings, Meth Settings, everything is perfect..
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frenchy92005
Member
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- 2003 MAzdaspeed
installed in dash dvd player and am street tuning the afc after installing the 626 mani which is awesome i love the top end and dont feel any loss down low. am tuning for 8 psi and 11 psi. am using my friends wideband but i really need to get my own cause all i have is the narrow band and that just doesnt cut it when im tuning
there has been a wideband int he FS forum
No, i beleive you, i should have rephrased it. No properly working high flow cat will cause that loss.
I hope you figure it out
best thing to do as stated above is to remove the cat, and check it out.
I hope you figure it out
best thing to do as stated above is to remove the cat, and check it out.
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2.0t03speed
Member
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- 08.5 CWP Speed 3
Just went and bought 20 bucks worth of stainless steel studs,washers,nuts,and some allen bolts to replace the bad stock hardware. I cant tell you how many times ive stripped a stud or snapped one on the j pipe/s pipe connection. That wont be happening anymore
those are just awful, even when u get allen bolts. that cast iron is brutal on threads after all that heat cycling. I had to retap one of the holes once, what a chore. cast iron is an unforgiving *****.
i have had problems both ways warm and cold, i think from factory they crossthread them, especially the s pipe to turbo. everything i replaced with nicer hardware comes out fine now though.
i envy your luck lol. even with pb blaster and going back and forth real slow to work it off still had problems with some of them. i mean the stud came out before the nut did. if that doesnt spell crossthread i dunno what does lol all the msp's ive worked on had at least one that hated me.
2.0t03speed
Member
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- 08.5 CWP Speed 3
Just ordered my banjo bolts that i needed for the coolant lines and my turbo gaskets that i needed
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2.0t03speed
Member
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- 08.5 CWP Speed 3
Got my black injen intake, my couplers and t bolts for my maf relocation in today everything looks awesome. i also marked my turbo life cold pipe for maf relocation.
Good deal. I noticed my shifts were a bit smoother after this mod and there was less hesitation. Just make sure you leave the plastic air-straightener mesh in place on the MAF. (thought)
2.0t03speed
Member
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- 08.5 CWP Speed 3
yea i think im gonna run the injen as a sri instead of a cai
