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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
138,482
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
139,768
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
134,303
Important/Useful :
Attention ALL TPI owners...inside please...
(
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2
3
4
5
...
Last Page
)
KYL98
on Sep 25, 2003
Sep 19, 2023
05:03 PM
by
mikeceli
255
135,395
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
76,463
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
128,706
Important/Useful :
TPI OBDII - Thoughts/Opinions
(
1
2
3
4
5
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Last Page
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S10Wildside
on Aug 19, 2006
Oct 26, 2016
10:42 PM
by
evilstuie
1,099
325,790
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
83,821
Normal Threads
EGR Valve for 87 TPI
dwisti
on Oct 15, 2015
Oct 18, 2015
04:12 PM
by
dwisti
1
1,075
replacement molded PCV hose
dwisti
on Oct 16, 2015
Oct 18, 2015
03:50 PM
by
dwisti
5
4,938
Dropping gas tank
IROCU2
on Oct 17, 2015
Oct 18, 2015
02:46 PM
by
IROCU2
5
690
Planning some winter engine work - 1987 Iroc 5.7
Kevman
on Oct 18, 2015
Oct 18, 2015
10:16 AM
by
Kevman
0
536
TPI base
BOOT77
on Sep 13, 2015
Oct 17, 2015
12:09 PM
by
BOOT77
6
6,609
88 iroc 5.7 need help cranks got fuel and spark no start
yellowferrari
on Oct 7, 2015
Oct 16, 2015
12:32 PM
by
yellowferrari
12
1,932
How to attach MAP sensor to HSR intake?
evilstuie
on Oct 15, 2015
Oct 15, 2015
07:39 PM
by
Orr89RocZ
3
731
Another code 34and 36 cry for help
jpearcy1
on Oct 11, 2015
Oct 11, 2015
10:44 AM
by
jpearcy1
0
410
TPI throttle body ports need help I'm losing my mind
rhyno811
on Oct 6, 2015
Oct 11, 2015
07:43 AM
by
Johnny Gun
1
874
Fuel leaking from AFPR port
Reid Fleming
on Sep 28, 2015
Oct 10, 2015
09:56 PM
by
Reid Fleming
2
8,303
speed sensor output to Ecm
captainchadl
on Jan 25, 2014
Oct 9, 2015
08:56 PM
by
mudd746
18
13,453
Need help identifing wire harness plugs
Pbarnett98
on Oct 9, 2015
Oct 9, 2015
11:48 AM
by
Pbarnett98
8
859
Misfire causing random knock.? Ever heard?!
roguecoxnet
on Oct 7, 2015
Oct 8, 2015
08:07 PM
by
bigal55
5
2,177
305 tbi to 350 tpi help
the rookie24
on Dec 4, 2010
Oct 8, 2015
04:44 PM
by
Erick James
13
2,959
No injector pulse. 1991 L98 TPI
2QUIK4U
on Oct 6, 2015
Oct 8, 2015
06:40 AM
by
MrPackstin
4
1,998
89 tpi Iroc egr Vacuum solenoid
Pbarnett98
on Oct 7, 2015
Oct 8, 2015
05:24 AM
by
Bob88GTA
5
634
BAd injector?
lakeffect2
on Oct 7, 2015
Oct 7, 2015
10:40 PM
by
lakeffect2
0
557
no power on acceleration
sac92transam
on Sep 16, 2015
Oct 7, 2015
02:31 PM
by
sac92transam
3
2,295
New maf but runs like crap
Logan Bryant
on Oct 6, 2015
Oct 6, 2015
10:03 PM
by
mjdavis68
1
553
MAF Delete ?
omnipotentgoku
on Oct 3, 2015
Oct 6, 2015
06:57 PM
by
ASE doc
4
15,359
Code 33 Cant Figure It Out
Dskeezy16
on Oct 3, 2015
Oct 6, 2015
02:26 PM
by
ASE doc
6
796
TPI Oil cooler snap ring
FormulasOnly
on Oct 1, 2015
Oct 2, 2015
05:52 PM
by
TTOP350
4
8,499
Camaro 85 irocz28 code 15 Please help
Luigytico09
on Oct 1, 2015
Oct 1, 2015
08:46 AM
by
Luigytico09
0
5,171
91 350 tpi
thejimsterz28
on Sep 29, 2015
Sep 30, 2015
08:52 PM
by
thejimsterz28
4
4,759
Is there a difference between pre-90 tpi intake and 90-92?
remltr
on Sep 30, 2015
Sep 30, 2015
07:44 PM
by
MoJoe
1
5,261
305 tpi to a 350 tpi
(
1
2
)
Clint307
on Jul 23, 2015
Sep 30, 2015
04:34 PM
by
KCG
70
11,602
'87 2.8L fuel rail inlet/return sizes
bplessy
on Sep 30, 2015
Sep 30, 2015
12:14 PM
by
bplessy
0
2,689
350 TPI backfire on deceleration and feels gutless.
85 Jimmy
on Sep 14, 2015
Sep 30, 2015
07:56 AM
by
okfoz
3
14,499
305 TPI wont idle
Wade787b
on Aug 7, 2015
Sep 29, 2015
01:15 PM
by
foxxtrot82
2
124,863
Looking for a top end setup
Zell1luk
on Sep 29, 2015
Sep 29, 2015
10:36 AM
by
Zell1luk
0
13,529
Car starts sometimes rough idle
Jlanz55
on Sep 27, 2015
Sep 29, 2015
08:55 AM
by
thejimsterz28
2
2,856
tpi swap, fuel system questions
dusterbd
on Sep 29, 2015
Sep 29, 2015
08:40 AM
by
dusterbd
0
9,769
TPI Swap Question
tomtom89
on May 8, 2015
Sep 28, 2015
10:07 PM
by
Gray Ghost 8991
6
809
Low fuel pressure?
mike22115
on Sep 24, 2015
Sep 28, 2015
04:49 AM
by
racerx520
3
1,676
Was trying to find fuel pump relay. Now, no oil pressure
j00sh
on Sep 25, 2015
Sep 27, 2015
09:49 AM
by
RBob
1
2,791
305 TPI running rich
Lmancha96
on Sep 25, 2015
Sep 25, 2015
08:11 PM
by
mantaguy
1
1,875
5.7 rough idle, skipping and shaking occasionally at 2500 rpm
gta892000
on Sep 24, 2015
Sep 25, 2015
12:08 AM
by
tealman92
1
3,242
Stalling code 34
Logan Bryant
on Sep 22, 2015
Sep 23, 2015
06:51 AM
by
MrPackstin
1
1,367
Help building stock 305 TPI
1990FirebirdGTA
on Sep 18, 2015
Sep 22, 2015
07:26 PM
by
rusty vango
3
1,790
Code 33 questions.
Shane87irocz
on Sep 20, 2015
Sep 22, 2015
06:21 PM
by
rusty vango
3
1,667
Unsteady idle (occasional)
Youngs92
on Jul 23, 2015
Sep 22, 2015
11:17 AM
by
Youngs92
15
2,683
"Something Old, Something New" Part III?
JHX
on Aug 26, 2015
Sep 21, 2015
08:53 PM
by
Eagle223usa
6
2,741
Need help!
ssgt usaf
on Sep 20, 2015
Sep 21, 2015
12:45 PM
by
aliceempire
1
1,069
Hard starting when cold
GTAman
on Aug 31, 2015
Sep 21, 2015
09:57 AM
by
GTAman
26
12,477
88 5.7 tpi bouncing idle and stalling
IROCtometal
on Sep 2, 2015
Sep 20, 2015
11:08 PM
by
alex722607
2
27,917
Tpi help please
xxblade31
on Mar 29, 2015
Sep 19, 2015
11:56 PM
by
xxblade31
9
1,026
The Best Camaro Never made - Question about 1992 heritage edition that din't make it
(
1
2
)
Mark_ZZ3
on Feb 4, 2001
Sep 18, 2015
12:41 PM
by
no new tires
62
8,002
TPI fuel rail o-rings
BOOT77
on Sep 16, 2015
Sep 16, 2015
08:37 PM
by
paulo57509
3
3,125
Help??! Please?! - Im stumped, Exhaust popping / back firing at idle
mdtoren
on Jul 15, 2015
Sep 16, 2015
07:10 PM
by
L98GTA87
6
1,399
what should i do next power wise?
alpine247
on Sep 16, 2015
Sep 16, 2015
05:25 PM
by
alpine247
1
1,254
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