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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
(
1
2
3
4
5
...
Last Page
)
Acceld Z
on Jan 6, 2005
Jan 13, 2025
03:01 PM
by
newbvetteguy
321
138,384
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
139,682
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
134,184
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
135,340
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
76,453
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
128,664
Important/Useful :
TPI OBDII - Thoughts/Opinions
(
1
2
3
4
5
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S10Wildside
on Aug 19, 2006
Oct 26, 2016
10:42 PM
by
evilstuie
1,099
325,451
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
47,095
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
83,805
Normal Threads
Trying to adjust the TPS
86IROC112
on Jun 22, 2015
Jun 25, 2015
11:59 AM
by
Bob88GTA
9
1,426
'87 IROC with 5.7 TPI MAF issues
Kevman
on Jun 21, 2015
Jun 24, 2015
09:43 PM
by
Kevman
6
710
Will I benefit from an intake upgrade using the stock heads?
EDGE
on Jun 21, 2015
Jun 24, 2015
07:00 PM
by
Fast355
4
621
anyone in NJ good w tpi?
mrestrictrplate
on Jun 23, 2015
Jun 23, 2015
01:40 PM
by
mrestrictrplate
0
348
Rough, miss like stumble off idle
EDGE
on Jun 22, 2015
Jun 23, 2015
12:32 PM
by
EDGE
1
675
wanting to stall
bbsr72
on Jun 19, 2015
Jun 23, 2015
10:52 AM
by
Fred SS
3
460
still fuel issues?!
racerx520
on May 11, 2015
Jun 22, 2015
02:37 PM
by
racerx520
16
777
need help car won't start
turbotrix2004
on Jun 15, 2015
Jun 21, 2015
03:51 PM
by
aliceempire
6
585
89 gta l98 intermittent surging idle, help!
bottledbird68
on Jun 3, 2015
Jun 20, 2015
08:18 PM
by
MaxpowerTA
21
3,091
Car won't start
Dustin250r312
on Jun 15, 2015
Jun 17, 2015
10:17 PM
by
aliceempire
5
605
Hard cold start - ideas?
someone972
on Jun 12, 2015
Jun 17, 2015
10:21 AM
by
aliceempire
4
739
Who can identify these injectors?
chazman
on Jun 16, 2015
Jun 17, 2015
09:29 AM
by
chazman
1
462
Weird Throttle Body - Pic attached
86IROC112
on Jun 11, 2015
Jun 16, 2015
09:31 PM
by
Fred SS
21
3,223
After market injectors, what should my pressure be?
EDGE
on Jun 15, 2015
Jun 15, 2015
09:30 PM
by
Zach/90\irocZ
1
508
Throttle body gasket question...
86IROC112
on Jun 12, 2015
Jun 15, 2015
06:58 PM
by
paulo57509
3
855
Head question
Rob's 92 gta
on Jun 15, 2015
Jun 15, 2015
01:33 PM
by
Rob's 92 gta
0
370
Bad inj?????
happyhapka
on Jun 13, 2015
Jun 15, 2015
12:11 PM
by
happyhapka
6
611
Identify this fuel line part please..
MeenZ28
on Jun 11, 2015
Jun 15, 2015
08:19 AM
by
RBob
11
2,918
Question About Fuel Injectors
tylerf
on Nov 26, 2011
Jun 15, 2015
02:43 AM
by
AussiePr0nCar
26
9,554
Inside a Highflow brand fuel pump.
EDGE
on Jun 12, 2015
Jun 14, 2015
06:25 PM
by
TTOP350
4
672
Bad map?
garnerm
on Jun 13, 2015
Jun 13, 2015
10:28 PM
by
garnerm
0
456
MAF to MAP (EBL flash).Remove MAF.
sweden
on Jun 11, 2015
Jun 13, 2015
12:37 PM
by
sweden
2
908
89 383 TPI stumbling idle
dtedrow
on Jun 6, 2015
Jun 12, 2015
06:02 PM
by
killer777
1
1,083
a midnight thought on afprs
racerx520
on Jun 11, 2015
Jun 12, 2015
04:09 PM
by
Abubaca
4
457
Need Help Fast
RedIrocZZ
on Jun 10, 2015
Jun 11, 2015
05:27 PM
by
Tuned Performance
5
524
Rough idle
pritch55
on Jun 7, 2015
Jun 10, 2015
08:28 PM
by
pritch55
2
875
20A fuse & MAF problem (Simple?)
tagolf2000
on Jun 10, 2015
Jun 10, 2015
06:19 PM
by
tagolf2000
1
494
Vacuum hose routing..??
86IROC112
on Jun 9, 2015
Jun 9, 2015
03:27 PM
by
86IROC112
5
3,632
Anyone selling a FIRST intake system?
IROC406
on Jun 8, 2015
Jun 9, 2015
01:34 PM
by
TylerSteez
3
691
MAF issues
Phirewire
on Jun 8, 2015
Jun 8, 2015
07:26 PM
by
Phirewire
0
532
89 pontiac ta starts and stalls wont idle
1979camaro
on Jun 6, 2015
Jun 7, 2015
07:01 PM
by
1979camaro
4
550
fuel pressure drop
92crimsonRS
on Jun 6, 2015
Jun 6, 2015
06:00 PM
by
EDGE
1
554
1991 TPI Hard starting???
91iroc
on May 25, 2015
Jun 5, 2015
04:24 PM
by
91iroc
11
1,494
OK guys, I'm really close but need help with one more thing!
86IROC112
on Jun 4, 2015
Jun 5, 2015
10:48 AM
by
Bob88GTA
5
532
1985-87 IROC 5.0 5.7 TPI factory ECM/ECU accel and top speed
ExChevySalesman
on May 31, 2015
Jun 5, 2015
06:13 AM
by
PurelyPMD
5
4,503
Bogging lost of power after turning on engine then goes away slightly
Zach/90\irocZ
on Jun 1, 2015
Jun 4, 2015
11:15 PM
by
Zach/90\irocZ
6
748
tpi question
Rob's 92 gta
on Jun 4, 2015
Jun 4, 2015
08:20 PM
by
Rob's 92 gta
0
402
And now for my next bout of stupidity...I give you the 2000 RPM idle.
EDGE
on Jun 4, 2015
Jun 4, 2015
07:50 PM
by
aliceempire
1
441
Poor Cold Idle -- Speed Density
Copperhead
on May 29, 2015
Jun 4, 2015
01:40 PM
by
Copperhead
12
763
89 L98 won't idle and runs rough
Hawgtied
on Jun 4, 2015
Jun 4, 2015
01:21 PM
by
Hawgtied
0
690
350 TPI IDLING PROBLEMS
I_R_O_C_Z_2_8
on Jun 2, 2015
Jun 2, 2015
08:12 PM
by
I_R_O_C_Z_2_8
6
610
TPS Voltage makes no sense
brian p
on May 28, 2015
Jun 2, 2015
04:55 PM
by
brian p
5
905
Re-adjusting IAC/TPS necessary?
perZ
on Jun 1, 2015
Jun 2, 2015
03:56 PM
by
perZ
2
918
Look what I found when I did my fuel pump trap door!
F-Body Demon
on Jul 31, 2008
Jun 1, 2015
06:55 PM
by
1983Chimaera
48
23,771
88 iroc 350 tpi runs rough and ses light flickers
silverstang84
on Dec 21, 2014
Jun 1, 2015
06:48 PM
by
Jayryan
16
1,022
TPI Swap not running.
garnerm
on May 20, 2015
Jun 1, 2015
10:08 AM
by
Fred SS
24
1,089
1989 GTA LB9/700R4 high idle and shuts off. 73k miles
92Forumla
on May 14, 2015
Jun 1, 2015
09:09 AM
by
92Forumla
8
996
fuel pump.... where to cut
poordo
on Sep 3, 2012
Jun 1, 2015
07:48 AM
by
IMissMy86TA
19
4,398
Fuel filter flow numbers?
Pat1990GTA
on May 31, 2015
May 31, 2015
11:16 PM
by
Pat1990GTA
0
528
91 TPI fuel pressure
garnerm
on May 30, 2015
May 31, 2015
07:22 AM
by
aliceempire
1
482
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