04-16-2021, 06:39 PM
|
#1
|
|
Registered User
Join Date: Apr 2016
Location: SE Michigan
Posts: 496
|
Underdrive pulley and 74mm throttle body from 1999 996 will get you a bit more noticeable gain, less belt noise and more intake noise too, what I did on mine.
__________________
1997 Boxster arctic silver/ red, XNE riveted mahogany/ leather steering wheel & 917-style wood shift knob, Ben’s short shifter, PSE, 996 TB, UDP, stereo/ center console delete, hardtop and speedster humps, daily driver rain or shine or snow!
|
|
|
|
04-27-2021, 07:15 PM
|
#2
|
|
Registered User
Join Date: Oct 2020
Location: KY
Posts: 1,214
|
Quote:
Originally Posted by Boxstard
Underdrive pulley and 74mm throttle body from 1999 996 will get you a bit more noticeable gain, less belt noise and more intake noise too, what I did on mine.
|
When you went up to a 74mm TB, was the dme able to compensate or did you need a 996 flash?
Sent from my POCOPHONE F1 using Tapatalk
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
|
|
|
|
|
05-02-2021, 08:17 PM
|
#3
|
|
Registered User
Join Date: Apr 2016
Location: SE Michigan
Posts: 496
|
Quote:
Originally Posted by ike84
When you went up to a 74mm TB, was the dme able to compensate or did you need a 996 flash?
Sent from my POCOPHONE F1 using Tapatalk
|
Plug and play, no messing around with DME. Runs great!
__________________
1997 Boxster arctic silver/ red, XNE riveted mahogany/ leather steering wheel & 917-style wood shift knob, Ben’s short shifter, PSE, 996 TB, UDP, stereo/ center console delete, hardtop and speedster humps, daily driver rain or shine or snow!
|
|
|
|
|
05-04-2021, 08:40 AM
|
#4
|
|
Registered User
Join Date: Oct 2020
Location: KY
Posts: 1,214
|
Quote:
Originally Posted by Boxstard
Plug and play, no messing around with DME. Runs great!
|
That's really interesting. When I went up to 82mm the dme could not adjust, not even close.
Sent from my POCOPHONE F1 using Tapatalk
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
|
|
|
|
|
05-04-2021, 04:48 PM
|
#5
|
|
Registered User
Join Date: Apr 2016
Location: SE Michigan
Posts: 496
|
Quote:
Originally Posted by ike84
That's really interesting. When I went up to 82mm the dme could not adjust, not even close.
Sent from my POCOPHONE F1 using Tapatalk
|
Maybe because your car had e-throttle, not cable-throttle as mine?
__________________
1997 Boxster arctic silver/ red, XNE riveted mahogany/ leather steering wheel & 917-style wood shift knob, Ben’s short shifter, PSE, 996 TB, UDP, stereo/ center console delete, hardtop and speedster humps, daily driver rain or shine or snow!
|
|
|
|
|
05-05-2021, 07:39 AM
|
#6
|
|
Registered User
Join Date: May 2018
Location: Michigan
Posts: 108
|
Did you have to go to the IPD plenum with a 74mm? Could one just swap the OEM 996 plenum and 74mm in the 986?
|
|
|
|
|
05-05-2021, 08:34 AM
|
#7
|
|
Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
|
Quote:
Originally Posted by 2ata
Did you have to go to the IPD plenum with a 74mm? Could one just swap the OEM 996 plenum and 74mm in the 986?
|
That's what I did on mine, I have another set i'll sell .
__________________
OE engine rebuilt,3.6 litre LN Engineering billet sleeves,triple row IMSB,LN rods. Deep sump oil pan with DT40 oil.
|
|
|
|
|
05-05-2021, 08:23 AM
|
#8
|
|
Registered User
Join Date: Oct 2020
Location: KY
Posts: 1,214
|
Quote:
Originally Posted by Boxstard
Maybe because your car had e-throttle, not cable-throttle as mine?
|
That's an interesting point, it's certainly possible. I think though there is probably just an upper limit (like with fuel trims) as to how much they can adjust and my guess is it's somewhere between the capacity of a 74 and 82 mm TB.
Sent from my POCOPHONE F1 using Tapatalk
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
|
|
|
|
|
05-09-2021, 05:16 PM
|
#9
|
|
Registered User
Join Date: Apr 2016
Location: SE Michigan
Posts: 496
|
Quote:
Originally Posted by ike84
That's an interesting point, it's certainly possible. I think though there is probably just an upper limit (like with fuel trims) as to how much they can adjust and my guess is it's somewhere between the capacity of a 74 and 82 mm TB.
Sent from my POCOPHONE F1 using Tapatalk
|
I thought the tube ID at MAF is 74mm so it’s the bottleneck if you use a bigger TB.
__________________
1997 Boxster arctic silver/ red, XNE riveted mahogany/ leather steering wheel & 917-style wood shift knob, Ben’s short shifter, PSE, 996 TB, UDP, stereo/ center console delete, hardtop and speedster humps, daily driver rain or shine or snow!
|
|
|
|
| Thread Tools |
|
|
| Display Modes |
 Hybrid Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
All times are GMT -8. The time now is 07:30 PM.
| |
Mean Motor Scooter
