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Third Generation F-Body Message Boards
Tech Boards
TPI
TPI
Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Important/Useful :
TPI shootout in Feb Super Rod magazine
(
1
2
3
4
5
...
Last Page
)
Acceld Z
on Jan 6, 2005
Jan 13, 2025
03:01 PM
by
newbvetteguy
321
138,448
Important/Useful :
Quest for a better flowing TPI
(
1
2
3
4
5
...
Last Page
)
Dyno Don
on Feb 17, 2008
Sep 27, 2024
09:54 PM
by
MrIROBZ
353
139,751
Important/Useful :
Repinning TBI to Speed Density TPI
(
1
2
3
4
5
...
Last Page
)
anesthes
on Dec 29, 2003
Oct 29, 2023
02:10 AM
by
stew'86MCSS396
365
134,264
Important/Useful :
Attention ALL TPI owners...inside please...
(
1
2
3
4
5
...
Last Page
)
KYL98
on Sep 25, 2003
Sep 19, 2023
05:03 PM
by
mikeceli
255
135,375
Important/Useful :
BANNED TOPICS... once again, EVERYONE READ
(
1
2
)
Ed Maher
on Feb 27, 2003
Jul 15, 2023
08:25 PM
by
Tuned Performance
76
76,460
Important/Useful :
LS1 Coil per Cylinder Conversion - Are you ready?
(
1
2
3
)
S10Wildside
on Nov 8, 2008
Jul 1, 2023
10:31 AM
by
Duane's 91 Z/28
145
128,694
Important/Useful :
TPI OBDII - Thoughts/Opinions
(
1
2
3
4
5
...
Last Page
)
S10Wildside
on Aug 19, 2006
Oct 26, 2016
10:42 PM
by
evilstuie
1,099
325,615
Important/Useful :
*EVERYONE READ* FAQ / Index for the TPI board
Ed Maher
on Dec 26, 2002
Jul 10, 2015
10:00 AM
by
RED85TPI
30
47,119
Important/Useful :
'Performance Proms' , also TPS enhancer snake oil, and other chip basics
(
1
2
3
)
Drew ATX
on May 4, 2002
Feb 13, 2014
01:09 PM
by
Tuned Performance
130
83,819
Normal Threads
Trick Flow Heads
kawaslut
on Mar 11, 2021
Mar 15, 2021
09:26 AM
by
kawaslut
5
1,244
Bolt on power for a 305 TPI?
Annihilate
on Mar 14, 2021
Mar 14, 2021
07:36 PM
by
Annihilate
7
825
ZZ4 Cam and TPI
Out-Cast
on Mar 8, 2021
Mar 13, 2021
07:43 PM
by
Out-Cast
4
899
Where does this plug connect to?
RockStarEddie
on Mar 13, 2021
Mar 13, 2021
05:05 PM
by
RockStarEddie
2
435
Won't run with MAF plugged in
Rider91
on Apr 28, 2017
Mar 9, 2021
10:16 AM
by
KITT 84
4
2,236
What is this port on Vortec TPI base
86FyrBrd
on Mar 8, 2021
Mar 8, 2021
10:24 AM
by
86FyrBrd
2
619
How much power am I losing?
ULTM8Z
on Feb 14, 2021
Mar 7, 2021
08:50 AM
by
z 28 jari
18
1,592
91 Z28 will not stay running
outlawdan
on Mar 4, 2021
Mar 4, 2021
09:27 AM
by
Tuned Performance
4
364
Poll
Mystery part
KoltinC
on Mar 2, 2021
Mar 2, 2021
09:18 AM
by
Reddragon88gta
7
518
Keeps dying during idle adjustment
88BLKTransAmGTA
on Feb 13, 2021
Mar 1, 2021
08:25 PM
by
Tuned Performance
22
1,354
TPI dies in gear 305 / Auto / 1992
itmajors
on Jan 31, 2021
Feb 28, 2021
05:47 PM
by
D87z001
44
1,586
Tps intermittent voltage fluctuation
Dirty_Duke
on Feb 2, 2021
Feb 27, 2021
05:41 PM
by
Dirty_Duke
6
504
Engine number location on 305ci
Koolstude
on Oct 31, 2005
Feb 26, 2021
05:24 AM
by
Old Gearhead
9
26,520
1987 305 TPI IDLE AND STALLING ISSUES
D87z001
on Feb 22, 2021
Feb 24, 2021
09:03 PM
by
Tuned Performance
11
602
TPI or FITech setup?
75/92 Birdman
on Feb 24, 2021
Feb 24, 2021
02:05 PM
by
Aaron R.
1
622
Going to be dropping my rear end, thinking about upgrading fuel pump
Annihilate
on Feb 18, 2021
Feb 20, 2021
02:10 PM
by
GeneralDisorder
6
782
Worth TPIS Bigmouth and runners if Procharged?
ZZ42Fast
on Feb 19, 2021
Feb 19, 2021
10:57 PM
by
QwkTrip
4
576
Carb'd tpi....it's still a joke
aliceempire
on Feb 15, 2021
Feb 19, 2021
08:27 PM
by
IROCZman15
9
1,043
TPI Valve Covers
KR81
on Dec 13, 2020
Feb 17, 2021
01:15 PM
by
KR81
9
1,239
Budget TPI 350 build
Pet_ROC
on Oct 18, 2018
Feb 11, 2021
02:27 PM
by
Pet_ROC
8
1,516
Fuel Rail Mounted Gauge Ideas
Vinscully50
on Feb 4, 2021
Feb 9, 2021
08:10 PM
by
BOTTLEDZ28
9
683
Question about South Bay fuel injectors o ring fitment?
88irocz91rally
on Jan 5, 2021
Feb 3, 2021
12:16 PM
by
southbay08
14
1,865
Question: Can I drive with disconnected MAF?
HCR13
on Jan 16, 2008
Feb 1, 2021
09:11 PM
by
Jayess
14
78,478
Anyone use the Hawk's TPI sending unit?
rurnt88
on Jan 28, 2021
Jan 29, 2021
07:29 AM
by
rurnt88
3
1,025
Fuel pump, and winter
Pro
on Jan 24, 2021
Jan 25, 2021
09:15 PM
by
TransamGTA350
3
566
TPS Sensor Voltage... Is it bad???
DBRjeep350TPI
on May 14, 2012
Jan 24, 2021
11:19 AM
by
Tuned Performance
22
29,252
Chip/Tune after a 305 to 383 swap?
86FyrBrd
on Jan 6, 2021
Jan 23, 2021
09:58 AM
by
Street Lethal
7
826
Ported TPI intake - High Flow Fuel Injection Porting
(
1
2
)
yaj15
on Feb 16, 2012
Jan 21, 2021
06:23 PM
by
SuperRamFormula
87
43,184
Help with injector size
86FyrBrd
on Jan 10, 2021
Jan 11, 2021
03:07 PM
by
Orr89RocZ
5
1,065
my new tpi problem
NotsosleepyZ
on Jan 9, 2021
Jan 9, 2021
09:16 PM
by
NotsosleepyZ
2
586
Edelbrock hi flow intake tpi upper runner gaskets
motoj550
on Jan 9, 2021
Jan 9, 2021
04:22 PM
by
Tuned Performance
1
420
Throttle reading high with tb closed causing high idle.
Dirty_Duke
on Jan 8, 2021
Jan 9, 2021
11:05 AM
by
ULTM8Z
3
686
Vortec tpi to EFI
mizz0313
on Jan 8, 2021
Jan 8, 2021
11:31 AM
by
mizz0313
6
670
Swapping to TPI, Question About Fuel Pump While Still Carb'd
thainglo
on Jan 7, 2021
Jan 8, 2021
09:55 AM
by
ULTM8Z
1
377
I have the Firebird style air intake. Does anyone have the own home made cold air???
JucinGTA
on Sep 7, 2001
Jan 8, 2021
08:35 AM
by
tylercamaro
15
2,407
Stay TPI or Aftermarket EFI
Z85-383
on Jan 6, 2021
Jan 7, 2021
08:24 PM
by
ULTM8Z
26
4,356
Best Cam for a 350 TPI
camaro350tpi
on Nov 4, 2008
Jan 6, 2021
08:42 AM
by
Abubaca
16
41,669
Identifying TPI connectors 1987 LB9 305
minifahrer
on Dec 31, 2020
Jan 5, 2021
06:13 PM
by
Vader
9
885
Bad ECM??
boxingjunkie
on Mar 4, 2020
Jan 4, 2021
04:02 PM
by
John in RI
35
3,918
Installed some 1.6 rockers
ULTM8Z
on Jan 3, 2021
Jan 3, 2021
04:13 PM
by
ULTM8Z
2
678
Which Vacuum line to EGR solenoid?
RockStarEddie
on Dec 29, 2020
Jan 1, 2021
11:29 AM
by
RockStarEddie
3
849
Port/polish/siamese work
racerx520
on Dec 7, 2020
Dec 27, 2020
09:03 PM
by
zya5point0
9
978
Anyone know a good L98 timing map?
Jetlogan
on Dec 20, 2020
Dec 25, 2020
03:57 PM
by
Orr89RocZ
10
2,027
L98 cam lift limit
ericjon262
on Dec 24, 2020
Dec 24, 2020
05:21 PM
by
ericjon262
2
706
How can I identify what throttle body i have?
thebandit50187
on Dec 19, 2020
Dec 24, 2020
01:23 PM
by
aliceempire
4
4,801
Is this a bad TPS? Video included
88BLKTransAmGTA
on Dec 24, 2020
Dec 24, 2020
10:08 AM
by
88BLKTransAmGTA
0
405
Two coolant sensors on the TPI manifold?
Tootie Pang
on Feb 7, 2020
Dec 24, 2020
09:35 AM
by
Vader
9
3,029
Question
Mark Diesel
on Dec 22, 2020
Dec 22, 2020
08:31 PM
by
jharrison5
1
320
1992 Trans am TPI Automatic
itmajors
on Oct 22, 2020
Dec 22, 2020
11:21 AM
by
blacksunshine'91
24
1,382
Carburetor to TPI Conversion
JessieRS
on Dec 15, 2020
Dec 19, 2020
06:33 PM
by
thebandit50187
7
799
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