My Paxton car dips rpm every now and then but has never stalled out. My question would be is there anything we vortech/paxton owners can do to fix this issue???
My paxton is spot on drives like stock when I'm not in boost, beastly when in boost , idles like stock (smooth)... I have no complaints! If you get one just make sure you get a dyno tune and get it right the 1st tune! Oh and a tial bov is a must!
hmnmm. Interesting. Mine drives amazingly good. No issues at all. It may be more difficult for you to tune, but to discredit driveability with a good tune seems off to me.
This thread just threw me through a loop with the Paxton Purchase. I wish what Shaun posted didn't make so much sense.
Why are the screw/roots style blower demonstrating such a cleaner signal? Does it have to do with the location of the blower on the motor or simply a better placement of MAF?
Theres a ton of paxton / vortech owners here and I never heard of anyone complaining about driveability issues. But i have heard alot of concerns about heat soak with roots style blowers, which to me is more serious then any drivability concerns. I suggest you drive both types before you buy then make your decision!
My tuner says that his Paxton cars drive really well but that the TVS is more stock like for whatever that is worth...
Hit up Rev Auto for any tuning conserns. My car ran like complete crap before I took it there. After they were done it was smooth as butter through the whole rpm range.
I had stalling issues with the kit at first. But after shaun tuning it mine does not stall anymore. Literally drives like stock and you would'nt be able to tell it has a blower on it unless you get on it.
Again not saying Shaun isn't right about it being harder to tune.
Just saying if properly tuned drive ability is perfect
Get it retuned all the well known tuners are up to date on how to fix this minor issue.
It's not silly, that's wrong. Before or after the blower has no role in it. If it did being after the blower would help because it goes thru an intercooler before it hits the maf, which would help straighten flow. But not the case. Blow thru is more difficult because there is not an air filter at the beginning of a smooth tube before the maf like PD blowers. Some have it right after the filter and after a neck down Venturi effect which speeds air and straightens it. That is how the oem airbox does it. Blow thru goes thru a bunch of bends and is expected to straighten out right before the maf. Without any assistance I think air is supposed to take 10 times the diameter of the tube to straighten out on it's own. Speed helps straighten it out. Take the same mass from a blower and cram it into a 3in tube and everything speeds up. Some companies do this to cover a poor signal caused by a poorly thought out maf tune. But then the maf maxes out way too early.The stock setup and whipple / screw setups are a draw through setup. The Paxton is a blow through setup. The blow through signal is always going to be off compared to a draw through, because the signal is after the blower, so the air changes will be more noticeable. To think anything different is just silly.
This is a Paxton at Idle
This is a Procharger at idle
What would you rather tune?
You can make the Paxton drive pretty good its just alot more work. IF we want to clean the signal we modify the kit here at the shop.
The BOV is undersized once you start adding pulleys and stuff it also effects it
Not hating on paxton its a good budget kit
Might be a stupid questions but would going to a draw through setup on the paxton help out any with the maf signal?
Eric,
Do you have one of these of a TVS or similar? Would you think it's much cleaner?
Curious if any of the manufacturers have looked into straightening elbows to clear up the signal. The last one I was briefed on cut the diameters down to 4 IIRC. Add that with a screen and you may be really getting somewhere.
Might be a stupid questions but would going to a draw through setup on the paxton help out any with the maf signal?
HA! Caveman remembered correctly lol10x diameter is pretty much industrial standard on flow measurement