This is a discussion on Safely Filling Silencer Holes on ported Eaton M90 Gen III Supercharger with (PICS) within the How To Write-Ups/Tech Tips forums, part of the W Body Tech category; Ok thanks...
99 Grand Prix GT
RIP 01 Grand Prix GT
1997 Grand Prix GT - The IncREDi-hoopdy (aka Anna Nicole) -Your Not So Typical Top Swapped, XP'ed, IC'ed, 3.4" Pulleyed, SLP header build - 219000 miles and counting - now with broken GETRAG 5 Speed
I want to hear a video or sound clip
Out with the old. In with the supercharged.
2002 Black Grand Prix GTP sedan - Go: SLP CAI & K&N Oiled Filter, Magnaflow catback, Overkill Tuned | Show: tint, GTP badge overlays, grill inserts
2009 Maverick Silver Metallic G8 GT - sold...
Im not 100% for this idea but I would like to hear how much louder it actually is.
HP Tuned, Ported SC/TB, 42# Injectors, Intense 3.5/3.4/3.25, SSAC Headers, AEM Wideband, ZZP 1.9 Modified Rockers, LS6 Springs, Manley Retainers, TransGo Shift Kit, Poly Dogbones, KYB GR2's, GMPP Brake and Suspension Upgrades, Springtech Springs.
Meh it looks legit, I have a spare blower I might try this with if I can remember where it is.
SMGPFC Member #14
Silver 2001 GTP - Bottom Swapped, SD Headers, hi flow cat, AEM dryflow HAI, Green Bastard ported M90, Autolite 104's.
Originally Posted by The Sunfire Guy
it's not louder at WOT at all. it's louder during part throttle where you're boosting maybe 3-5 pounds of boost.
for the effort, and i've had them sealed on my car, i think it's a complete waste of time.
ala, ported M90 here...
XP Cam Start-Up - YouTube
sorry for the delay, here is a before and after from inside the car
Before: 3.4 w/ supporting mods before Port and Polish - YouTube
After: 3.4 w/supporting mods after Port and Polish with silencer plate - YouTube
car ran good for 2 days then seems like a loss of power, realized it didnt like the tune i had from the intense 1.0 pcm, so i purchased hp tuners and been playing/learning with the tune, my maf sensor was way out of calibration from the new mods. I will say out of all the things i did to my car the hp tuners is by far the funnest. its amazing what changing some numbers in a few tables can do as for performance. i will post more vids after i get it tuned right.
Also had the low oil pressure idiot light in my dash on and hp tuners was reading my oil psi at -15. I just replaced the sensor 3 months ago so i figured it was still good. i have a light ticking that you can only hear at 2500 to 3500 rpm under load, figured it was a collapsed lifter that was not priming or a small exhaust leak at the cross over pipe to the rear headers. i pulled the idiot sensor out and taped a mechanical oil gauge in the port and mounted it in engine bay with new oil and filter 10w 30 syn. I was scared to start it and look at the pressure..... Cold start, idle in park it was at 60psi. THANK GOD!!!!!!!!! I still dont understand why hp tuners is reading my oil psi at -15. I purchased the mvpi standard new directly from hptuners.com for $540 shipped. does anyone on here have the standard mvpi on a 98 gtp with an oil pressure reading at -15?
No factory oil pressure sender, no oil pressure in pcm.
Like Matt says there is no sender it's just a switch. You're seeing the default reading in HPT.
It's a CUMMINS Dodge not a Dodge Cummins
Ok thanks, is there any downside to have the oil pressure switch deleted besides the oil cel will no longer work?
if your oil pressure drops that low, you're kinda done anyways.
I just had my ports welded shut by a shop they knows what they are doing. They are the best in the Cincinnati area, so if anyone in Cincy area wants this done they only charged 50 bucks. I thought this was reasonable since it is done with a nice pretty bead...lol. As soon as my damn motor is finished, I will post up a vid. The motor is done, just not in the booick yet..
Fresh rebuild.....will update reeeeaaaaal soon