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Third Generation F-Body Message Boards
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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
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3
4
5
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Last Page
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Acceld Z
on Jan 6, 2005
Jan 13, 2025
03:01 PM
by
newbvetteguy
321
138,545
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
139,845
Important/Useful :
Repinning TBI to Speed Density TPI
(
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2
3
4
5
...
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anesthes
on Dec 29, 2003
Oct 29, 2023
02:10 AM
by
stew'86MCSS396
365
134,408
Important/Useful :
Attention ALL TPI owners...inside please...
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3
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5
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KYL98
on Sep 25, 2003
Sep 19, 2023
05:03 PM
by
mikeceli
255
135,436
Important/Useful :
BANNED TOPICS... once again, EVERYONE READ
(
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Ed Maher
on Feb 27, 2003
Jul 15, 2023
08:25 PM
by
Tuned Performance
76
76,486
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
128,822
Important/Useful :
TPI OBDII - Thoughts/Opinions
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3
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5
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S10Wildside
on Aug 19, 2006
Oct 26, 2016
10:42 PM
by
evilstuie
1,099
325,966
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
47,131
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
83,827
Normal Threads
fuel injector compatibility
dark scorpion
on Mar 21, 2012
Mar 24, 2012
05:35 PM
by
fireburdluvr85
12
1,381
setting idle speed adjustment
tcrisp
on Mar 23, 2012
Mar 24, 2012
03:32 PM
by
tcrisp
4
1,524
stumbling snd sparkknockin
camaroboy199290
on Mar 24, 2012
Mar 24, 2012
12:28 PM
by
camaroboy199290
2
647
85 Z28 TPI will start wont run need Help!
casey86cuda
on Nov 3, 2010
Mar 24, 2012
11:25 AM
by
ploegi
9
4,101
Get a Super Ram or use what I have?
mcm95403
on Mar 22, 2012
Mar 24, 2012
10:32 AM
by
mcm95403
9
988
TPI Differences
Copperhead
on Mar 23, 2012
Mar 23, 2012
07:47 AM
by
Copperhead
2
988
Magazine Road Test Question '91 305 TPI 5-Speed Transmission
91Z28fan
on Mar 16, 2012
Mar 23, 2012
12:08 AM
by
Copperhead
1
736
Help! 355 Tpi starting issues
Z28NZ
on Mar 20, 2012
Mar 22, 2012
11:24 PM
by
Z28NZ
5
710
Soild CEL
Zipacna
on Mar 22, 2012
Mar 22, 2012
11:14 PM
by
Zipacna
0
334
Distributor has an odd catch/grind?
Trinten
on Mar 20, 2012
Mar 22, 2012
01:36 PM
by
RBob
30
1,261
Vortec TPI
unknown_host
on Mar 20, 2012
Mar 22, 2012
11:01 AM
by
Abubaca
16
3,739
Rear End Help Please!!!
twest2k2
on Mar 22, 2012
Mar 22, 2012
10:26 AM
by
twest2k2
3
610
TPI Harness questions!
irockid43
on Mar 20, 2012
Mar 22, 2012
12:36 AM
by
vetteoz
6
844
TPS wont go over 99%
insomniac
on Mar 21, 2012
Mar 21, 2012
07:16 PM
by
insomniac
2
705
Trying to get ECM data stream for programming
Bogey
on Mar 21, 2012
Mar 21, 2012
03:14 PM
by
Bogey
0
725
In Tank Fuel Pressure Check Valve.
1989Formula5.0
on Mar 12, 2012
Mar 21, 2012
03:05 PM
by
1989Formula5.0
3
3,992
Timing Question
insomniac
on Mar 20, 2012
Mar 20, 2012
09:01 PM
by
utilityguy2
1
632
back up this diagnosis.....
erik69&85
on Mar 20, 2012
Mar 20, 2012
08:52 PM
by
utilityguy2
2
1,125
Bad Injector
Shane77
on Mar 19, 2012
Mar 20, 2012
07:01 PM
by
Shane77
2
559
Where am I leaking oil from???
Bullydawg
on Aug 8, 2009
Mar 19, 2012
07:54 PM
by
luvofjah
22
2,773
Low fuel pressure and no increase when vacuum disconnected to FPR....PLEASE HELP!
goatkeeper
on Feb 16, 2012
Mar 19, 2012
05:41 PM
by
darrlee
9
7,426
Hard starting issue, L98.
(
1
2
)
Eagle223usa
on Jun 26, 2010
Mar 19, 2012
03:21 PM
by
Eagle223usa
89
21,239
how much hp?
87fbodyy
on Mar 14, 2012
Mar 19, 2012
02:36 PM
by
ASE doc
2
876
vortec FIRST tpi
88fastgta
on Mar 18, 2012
Mar 19, 2012
01:18 PM
by
1989GTATransAm
3
2,247
Fuel Pressure regulators
transamice
on Mar 19, 2012
Mar 19, 2012
12:09 PM
by
transamice
0
566
how to make more power!!
raceace18
on Mar 16, 2012
Mar 18, 2012
10:01 PM
by
spurgeon76
5
850
85 TPI Very Rough Idle in Gear
slt2321
on Jun 15, 2011
Mar 18, 2012
08:24 AM
by
leo27030
3
1,239
Rough Idle
Rocky1974
on Mar 16, 2012
Mar 17, 2012
09:59 PM
by
Rocky1974
1
1,433
Get more power out of my 305 tpi
Mont21
on Feb 14, 2012
Mar 17, 2012
09:37 PM
by
jfreeman74
15
21,462
Help needed with external coil (buying a new one)
Trinten
on Mar 14, 2012
Mar 17, 2012
07:54 PM
by
Trinten
4
711
HSR head choices
88Trans-am
on Mar 14, 2012
Mar 17, 2012
07:39 PM
by
watajob
1
657
89 L98 tries to start but won't
al1270
on Mar 16, 2012
Mar 16, 2012
09:01 PM
by
vetteoz
1
1,089
can someone run some numbers on desktop dyno
8996chevy
on Mar 16, 2012
Mar 16, 2012
08:11 PM
by
VincentZ28
2
983
AC Delete, Fan wiring
insomniac
on Feb 28, 2012
Mar 16, 2012
07:35 PM
by
Andrew James
3
1,134
sounds like a massive Vacuum leak, running terrible
89rsvert
on Mar 15, 2012
Mar 16, 2012
02:11 PM
by
89rsvert
3
1,711
New Guy Needs Help 1989 Iroc TPI...."FIRE"
Vaughjw
on Apr 26, 2011
Mar 16, 2012
01:55 PM
by
Vaughjw
38
1,714
SLP Runner Porting - Advice Needed
FireDemonSiC
on Mar 13, 2012
Mar 16, 2012
07:27 AM
by
LilSki
10
1,822
TPI 305 no start
36fordcoupe
on Mar 14, 2012
Mar 15, 2012
09:26 PM
by
36fordcoupe
2
500
timing & idle
dez58pop
on Mar 15, 2012
Mar 15, 2012
09:04 PM
by
red rock
2
570
tpi lb9 idle issue
reliantkcar
on Mar 12, 2012
Mar 15, 2012
08:52 PM
by
reliantkcar
6
1,395
lb9 choppy idle black plug cylinder 7 ideas
reliantkcar
on Mar 15, 2012
Mar 15, 2012
08:37 PM
by
reliantkcar
3
731
Heated o2 bad?
85Iroc-Z
on Mar 15, 2012
Mar 15, 2012
07:48 PM
by
utilityguy2
1
472
My new Tq monster 383
Marv02
on May 28, 2011
Mar 15, 2012
07:14 PM
by
vetteoz
6
1,478
just got my new intake - woohoo
mcm95403
on Mar 15, 2012
Mar 15, 2012
06:05 PM
by
mcm95403
3
739
Running Rich Wont Idle
insomniac
on Mar 15, 2012
Mar 15, 2012
04:16 PM
by
insomniac
0
573
1987 Firebird Formula TPI 350 stalling out.
jimmy2s83
on Mar 13, 2012
Mar 15, 2012
12:08 PM
by
jimmy2s83
2
1,055
D/S SLP runner top EGR port open & creating vacuum leak
insomniac
on Mar 15, 2012
Mar 15, 2012
08:55 AM
by
insomniac
2
919
ENGINE LIGHT PROBLEMS!!!!!!!!!!!!!!!!!!!!!!!!!!HELPPPPPP
JAYCREDIT
on Feb 22, 2012
Mar 14, 2012
11:02 PM
by
Brybry88
7
824
88 camaro 350 TPI rough at idle, HELP ME!
camaropower88
on Apr 25, 2011
Mar 14, 2012
09:13 PM
by
Brybry88
1
2,594
are my injectors ok? took readings
bbsr72
on Mar 13, 2012
Mar 14, 2012
04:08 PM
by
southbay08
9
754
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