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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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TPI
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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
139,372
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
140,551
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
135,523
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
136,001
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
76,695
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
129,548
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
327,888
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
47,240
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
84,069
Normal Threads
Control module questions
BigdavesZ28
on Feb 21, 2024
Feb 21, 2024
09:11 AM
by
Tuned Performance
2
402
Please help! 86 TPI Won’t stay alive.
MattMostLikely
on Sep 15, 2021
Feb 20, 2024
04:15 PM
by
dfarr67
7
965
fuel injectors
602
on Feb 19, 2024
Feb 20, 2024
04:05 PM
by
Tuned Performance
9
508
aftermarket harness
wruiz
on Feb 16, 2024
Feb 19, 2024
08:50 AM
by
wruiz
2
358
Replacement Charcoal canister Alternative?
CobraKai
on Apr 14, 2021
Feb 15, 2024
07:52 PM
by
irocz818
4
2,820
ECU and PROMS
MattMostLikely
on Feb 15, 2024
Feb 15, 2024
07:49 PM
by
Tuned Performance
9
517
Belt Routing Sticker -- no AIR.
Eightyninef
on Jan 1, 2024
Feb 14, 2024
08:29 PM
by
TTOP350
10
597
First Fuel Injection intake
lonesometree
on Feb 13, 2024
Feb 14, 2024
06:16 PM
by
Airwolfe
14
1,812
unevern idle/surging
TPI-Formula350-
on Feb 26, 2011
Feb 13, 2024
01:36 PM
by
Fast355
8
2,799
Are these fake walbro fuel pumps??
thatsupnow
on Feb 11, 2023
Feb 12, 2024
06:20 PM
by
OrangeBird
8
3,439
305 Heads TPI
Eightyninef
on Feb 1, 2024
Feb 12, 2024
05:52 PM
by
Eightyninef
10
2,684
Arizona Speed & Marine Valve Cover Clearance
TheMagikMan
on Feb 12, 2024
Feb 12, 2024
12:46 AM
by
TheMagikMan
0
368
WOT Issue
hassgrant
on Jan 25, 2024
Feb 8, 2024
06:16 PM
by
Fred SS
6
1,922
PROM ID??
WobblestickGTA
on Feb 6, 2024
Feb 6, 2024
03:23 PM
by
WobblestickGTA
11
676
AEM fuel pressure gauge to fuel rail
EDGE
on Feb 3, 2024
Feb 3, 2024
10:51 AM
by
EDGE
8
525
89GTA 5.7 TPI: Question on Driver side radiator fan turns on when key on; normal?
89GTASC
on Feb 1, 2024
Feb 3, 2024
05:56 AM
by
89GTASC
9
494
88 Camaro 5.7 TPI High Idle and Surging
JuanZ28
on Jan 29, 2024
Feb 2, 2024
07:28 PM
by
JuanZ28
9
1,107
FiTech 38350 Speed sensor question
AlmostHeumann
on Feb 1, 2024
Feb 2, 2024
05:19 PM
by
Tuned Performance
11
2,686
Use of TPI on something other than a V8
clyde427
on Jan 24, 2024
Feb 2, 2024
02:51 PM
by
TTOP350
24
899
Should PCV pull suction when idling?
Nutro
on Jan 29, 2024
Jan 30, 2024
06:07 PM
by
TTOP350
4
1,822
Gaskets for ported runners?
keis
on Jan 23, 2024
Jan 24, 2024
10:04 PM
by
Tom 400 CFI
11
904
89 GTA cranks but won't start
JoeJack
on Oct 10, 2023
Jan 20, 2024
04:30 PM
by
89GTASC
32
1,470
casting # 14096217 what heads are these?!?
Chris Etemadi
on Aug 14, 2002
Jan 20, 2024
12:42 AM
by
Fast355
20
83,198
OEM Spark Plug Wire Resistance
scorpiusx
on Jan 14, 2024
Jan 15, 2024
10:50 AM
by
Vader
2
428
89 egr solenoid valve, 305, need help please
ld91
on Apr 2, 2013
Jan 9, 2024
11:58 PM
by
Eightyninef
13
5,076
No crank, no start, Security light on.
chazman
on Nov 14, 2023
Jan 9, 2024
11:56 PM
by
Eightyninef
11
1,286
No crank, l when i turn key
Pbarnett98
on Aug 30, 2022
Jan 9, 2024
11:54 PM
by
Eightyninef
14
1,327
91 TPI 5 speed into 87 ex-carb
RobC87
on Jan 5, 2024
Jan 5, 2024
05:24 PM
by
RobC87
0
338
L98 TPI
dansm
on Jan 5, 2024
Jan 5, 2024
01:28 PM
by
dansm
2
656
Codes 33, 34, and 36 but it runs fine - '89 5.7
Jack_88
on Dec 19, 2023
Jan 2, 2024
12:40 PM
by
SbFormula
32
1,001
Hot cam worth it?
johnnyph1
on Dec 30, 2023
Dec 31, 2023
07:38 PM
by
Orr89RocZ
5
658
Tpi swap and external fuel pump system?
Mika
on Dec 25, 2001
Dec 28, 2023
04:22 PM
by
Tom 400 CFI
21
12,566
Whats the deal with the First Fuel Injection TPI?
(
1
2
)
MrIROBZ
on Dec 9, 2023
Dec 27, 2023
03:28 PM
by
Tom 400 CFI
63
11,386
HELP! Correct MAF
nkaiser81
on Dec 20, 2023
Dec 22, 2023
03:57 PM
by
KR81
4
551
TPI Throttle Body
ed2903
on Dec 10, 2023
Dec 15, 2023
11:28 PM
by
TTOP350
5
1,167
Sending unit help?
nkaiser81
on Dec 10, 2023
Dec 11, 2023
08:03 PM
by
nkaiser81
9
783
Does A TPI Base From a 1989 Corvette Work With An 86 LB9?
Vinscully50
on Dec 6, 2023
Dec 11, 2023
03:18 PM
by
Airwolfe
5
1,109
Does Anyone Know Anything About the 1985 Corvette L98 Heads?
Vinscully50
on Dec 5, 2023
Dec 6, 2023
01:13 PM
by
Fast355
5
2,343
Anyone know where this part goes?
buddybuddy
on Dec 3, 2023
Dec 5, 2023
06:14 AM
by
buddybuddy
2
730
91 tpi O2 issue
Faolan
on Nov 27, 2023
Dec 3, 2023
07:28 AM
by
SbFormula
11
641
TPI throttle sticking open (strange)
QuickStyle
on Apr 7, 2004
Nov 22, 2023
03:09 PM
by
george88gta
22
11,093
How I rebuilt my factory Throttle Body
Tootie Pang
on May 19, 2020
Nov 20, 2023
03:54 PM
by
c-137
6
6,576
Prom Burning
Bluesting70
on Nov 17, 2023
Nov 20, 2023
08:22 AM
by
Bluesting70
8
1,093
Start/ idle issue
Brianm
on Nov 16, 2023
Nov 17, 2023
10:32 PM
by
Brianm
8
810
350 HO tpi swap
leakyz28
on Nov 5, 2023
Nov 16, 2023
09:33 PM
by
leakyz28
7
933
is this actually a lingenfelter prototype tpi manifold and runners?
project89
on Jan 1, 2012
Nov 16, 2023
08:48 AM
by
Tom 400 CFI
29
8,883
Serpentine belt number 1992 TPI
R3500
on Dec 17, 2015
Nov 14, 2023
07:27 AM
by
bholmes
5
13,788
Fuel pressure regulator return line modification
69SSTPI
on Nov 3, 2023
Nov 12, 2023
05:10 AM
by
Drgnbld
3
975
LT1 Intake to stock l98???
keis
on Nov 5, 2023
Nov 10, 2023
06:24 PM
by
ULTM8Z
4
1,204
Leaky Header Cause Rough Idle?
ERICCAMARO
on Dec 11, 2002
Nov 9, 2023
03:31 PM
by
HillbillyMotors
18
14,489
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