I have a typical pullied car, 2.76 upper, no lower, non-ported blower, intake/exhaust and dyno tuned with SCT. I am putting on a Steggy-ported stocker TB/Plenum to grab a couple extra HP. I won't have to re-tune my car, will I??
Ported TB/Plenum, retune?
- Thread starter Fireguy615
- Start date
SLEEPERSTATUS
Banned
probably good to be safe than sorry jmo......do you plan on getting a port on the blower down the road?
ya its probably a good idea.
You shouldn't need to retune, but with any motor mod change like this it is always a good idea to at least check your A/F with a wideband.
im sorta in the same boat. I have a 2.76 upper/2lb lower with a stieg V port. I plan on a few weeks-month down the road adding a better TB and plenum
On yours honestly I wouldn't worry about it.
Now yours if you're going from a ported stocker or something to a ported Dragon then it might be a good idea to check.
You should have a retune. There are aot of driveabilty perameters that should be changed with even a small change as port.
Like Bob said, it should affect the AFR that much. But I would always check it to be sure.
It has more to do with driveabilty and idle than anything else.
Agreed, but with the stock ported TB/Plenum it shouldn't be affected that much.
Yeah, this is a minimal change with minimal changes in air flow. Do not need a re-tune or even a dyno session. Heck, more parameters change with colder air than with the addtition of a ported TB/Plenum........
My wife gave me a laptop for Christmas and I've had a great time datalogging in conjunction with the Xcal II. If you have these two devices available, this is a simple way to see what's happening with changes in setups.
posi mine is running the stock tb/plenum and i will be swaping to a ported setup or aftermarket
dynobobstieg
New Member
For correct information you should contact the supplier of the modified supercharger.
When switching to a single blade TB you are not going to see a change in A/F however you may have a couple of drivability issues that need to be adjusted, this information is available to all of our customers.
We have flow tested and Dynoed all combinations.
Thank you
Stiegemeier :burnout:
StiegeSplash
636-949-2275
Cobra Sale Prices:
LIMITED TIME LOWER PRICES FOR 03/04 COBRA PORTIING - Supercharger Q&A, Moderated by Dyno Bob
Dragon Sale
$449.00 Port matched to any stage Stiegemeier ported supercharger.
When switching to a single blade TB you are not going to see a change in A/F however you may have a couple of drivability issues that need to be adjusted, this information is available to all of our customers.
We have flow tested and Dynoed all combinations.
Thank you
Stiegemeier :burnout:
StiegeSplash
636-949-2275
Cobra Sale Prices:
LIMITED TIME LOWER PRICES FOR 03/04 COBRA PORTIING - Supercharger Q&A, Moderated by Dyno Bob
Dragon Sale
$449.00 Port matched to any stage Stiegemeier ported supercharger.
Good information Bob, but OP is not talking about modified superchargers, but the addition of a modified TB/Plenum. I was able to do a pre/post dyno test when I added my ported stocker and got 7 RWHP peak with no changes in any parameters that would require tuning adjustments.
Yes, let's not lose sight of the original question. This is not a single blade. Nor do I have a ported blower. I'm just looking to pick up that extra 7hp that we are talking about. Looks like I have my answer, that I will not need a retune and that's what I was looking for, thanks. I do indeed have a laptop and my sct Xcal 2, but I don't know how to datalog. But I would be interested on learning how to do that, sounds cool.
Probably not. but check the A/F Ratio to be safe.
Your SOTP meter should easily be happy with tip-in throttle response. Good luck. Let alone you'll pick up 6-8hp probably.
Last edited:
dynobobstieg
New Member
I should have said contact the supplier of the ported modified Tb and Pl.
The gains from a Stiegemeier Welded/ported/polished OEM Throttle body and Plenum is 12 RWHP. (GUARANTEED)
No re-tune needed.
I spoke of the single blade since someone else stated planning on going with a better one down the road.
Sorry for any confusion.
Stiegemeier
StiegeSplash
636-949-2275
The gains from a Stiegemeier Welded/ported/polished OEM Throttle body and Plenum is 12 RWHP. (GUARANTEED)
No re-tune needed.
I spoke of the single blade since someone else stated planning on going with a better one down the road.
Sorry for any confusion.
Stiegemeier
StiegeSplash
636-949-2275
The supplier of this ported setup is Steggy, although I am picking it up from a private owner. According to the Steg website the 12 hp gain is on a WELDED Tb/plenum, which this will not be. So I'm not sure about the 12hp gain. But I have the answer I was looking for. I will not re-tune it, I may just ask for an A/F reading.
Users who are viewing this thread
