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TECH: 4A-GE ENGINE

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OST-125: Building a big valve 5AGTTE (yes, twin turbocharged)

Last post by oldeskewltoy « Mon Nov 09, 2026 8:44 am
Replies: 1
by oldeskewltoy » Sun Nov 08, 2026 2:13 pm

1 Replies

524 Views

Last post by oldeskewltoy View the latest post
Mon Nov 09, 2026 8:44 am
5.5AG build thread!

Last post by Davegt27 « Mon Oct 12, 2026 4:53 am
Replies: 25
by Kuromi_loves_toyota » Thu Oct 19, 2023 3:47 am

25 Replies

86969 Views

Last post by Davegt27 View the latest post
Mon Oct 12, 2026 4:53 am
Coil charge time

Last post by totta crolla « Sat Jan 31, 2026 12:58 pm
Replies: 2
by totta crolla » Fri Jan 23, 2026 7:23 am

2 Replies

13134 Views

Last post by totta crolla View the latest post
Sat Jan 31, 2026 12:58 pm
Brand New 4AGE smallport head and block 3/2026

Last post by oldeskewltoy « Sat Sep 20, 2025 7:41 am
Replies: 2
by oldeskewltoy » Wed Sep 10, 2025 5:41 pm

2 Replies

18678 Views

Last post by oldeskewltoy View the latest post
Sat Sep 20, 2025 7:41 am
alternator is overcharging

Last post by Sprite « Sun Aug 24, 2025 3:58 pm
Replies: 8
by Sprite » Sat Jul 12, 2025 12:45 pm

8 Replies

88976 Views

Last post by Sprite View the latest post
Sun Aug 24, 2025 3:58 pm
Distributor

Last post by allencr « Sun Jul 20, 2025 7:14 am
Replies: 9
by totta crolla » Sun Feb 23, 2025 11:49 am

9 Replies

62355 Views

Last post by allencr View the latest post
Sun Jul 20, 2025 7:14 am
Alternator is overcharging

Last post by Sprite « Sat Jul 12, 2025 12:44 pm

by Sprite » Sat Jul 12, 2025 12:44 pm

0 Replies

46811 Views

Last post by Sprite View the latest post
Sat Jul 12, 2025 12:44 pm
AE86/AW11 4A-GE Oil Pan

Last post by davew7 « Tue Jun 24, 2025 3:43 am
Replies: 3
by El Gato Felix » Sun Jun 22, 2025 8:46 am

3 Replies

60401 Views

Last post by davew7 View the latest post
Tue Jun 24, 2025 3:43 am
4age Incorrect RPM signal

Last post by jondee86 « Sun Apr 13, 2025 10:41 pm
Replies: 4
by slowrolla4age » Tue Apr 08, 2025 6:57 pm

4 Replies

21805 Views

Last post by jondee86 View the latest post
Sun Apr 13, 2025 10:41 pm
Wow!... Hot performer

Last post by jinx « Tue Apr 08, 2025 1:54 pm
Replies: 12
by jinx » Sun Feb 23, 2025 5:02 pm

12 Replies

43505 Views

Last post by jinx View the latest post
Tue Apr 08, 2025 1:54 pm
Engine choice

Last post by Sprite « Sat Jan 11, 2025 7:36 am
Replies: 5
by totta crolla » Mon Dec 23, 2024 3:32 am

5 Replies

26632 Views

Last post by Sprite View the latest post
Sat Jan 11, 2025 7:36 am
Correct Operating Temperature?

Last post by Sprite « Sat Jan 11, 2025 7:27 am
Replies: 1
by Sprite » Tue Nov 12, 2024 7:32 am

1 Replies

15863 Views

Last post by Sprite View the latest post
Sat Jan 11, 2025 7:27 am
4AGE Silvertop 20V Oil Filter

Last post by jdm86gtz « Sat Nov 23, 2024 6:59 am
Replies: 2
by BlueAngel » Sun Nov 10, 2024 11:31 am

2 Replies

18685 Views

Last post by jdm86gtz View the latest post
Sat Nov 23, 2024 6:59 am
Silvertop Engine Codes.

Last post by Sprite « Thu Nov 21, 2024 5:45 pm
Replies: 4
by BlueAngel » Mon Nov 18, 2024 4:40 pm

4 Replies

19830 Views

Last post by Sprite View the latest post
Thu Nov 21, 2024 5:45 pm
any one ever hear of CNC INNOVATIONS ?

Last post by Kuromi_loves_toyota « Sat Oct 26, 2024 6:56 pm
Replies: 4
by Davegt27 » Wed Sep 25, 2024 6:03 am

4 Replies

23479 Views

Last post by Kuromi_loves_toyota View the latest post
Sat Oct 26, 2024 6:56 pm
Carbureting the 4AGE essentials

Last post by Blof-fan « Mon Oct 21, 2024 1:36 am
Replies: 147
1

2

3

4

5
Attachment(s) by dr.occa » Thu Jan 10, 2013 10:22 am
147 Replies

376522 Views

Last post by Blof-fan View the latest post
Mon Oct 21, 2024 1:36 am
Valve spring seats

Last post by totta crolla « Mon Jul 29, 2024 9:45 am
Replies: 6
by totta crolla » Thu Jul 18, 2024 3:12 am

6 Replies

37662 Views

Last post by totta crolla View the latest post
Mon Jul 29, 2024 9:45 am
4AGE Silvertop 20v MAF Meter adjustment

Last post by BlueAngel « Sat Jul 27, 2024 6:05 am

by BlueAngel » Sat Jul 27, 2024 6:05 am

0 Replies

32780 Views

Last post by BlueAngel View the latest post
Sat Jul 27, 2024 6:05 am
Silvertop to Blacktop Swap

Last post by morgan « Mon Jul 15, 2024 5:16 am
Replies: 1
by BlueAngel » Thu Jul 11, 2024 10:48 am

1 Replies

17633 Views

Last post by morgan View the latest post
Mon Jul 15, 2024 5:16 am
4AGE BT: To Keep or Not to Keep

Last post by allencr « Thu Jun 13, 2024 9:57 am
Replies: 8
by 4AGNoob » Fri Jun 07, 2024 9:19 am

8 Replies

28854 Views

Last post by allencr View the latest post
Thu Jun 13, 2024 9:57 am
Compression reading of 260

Last post by jondee86 « Tue Jun 11, 2024 3:09 pm
Replies: 3
by GalMR2 » Mon Jun 10, 2024 2:46 pm

3 Replies

22797 Views

Last post by jondee86 View the latest post
Tue Jun 11, 2024 3:09 pm
Interest in bigger 4AGZE intake piping and TB thread

Last post by Drifter4ag « Fri Jun 07, 2024 11:37 am
Replies: 33
1

2
by yoshimitsuspeed » Thu May 30, 2013 3:31 pm
33 Replies

72502 Views

Last post by Drifter4ag View the latest post
Fri Jun 07, 2024 11:37 am
Return #5: Spare engine boogaloo

Last post by davew7 « Thu Apr 18, 2024 4:24 am
Replies: 15
by nyberrg » Sat Jul 24, 2021 8:13 am

15 Replies

66732 Views

Last post by davew7 View the latest post
Thu Apr 18, 2024 4:24 am
AE86 MAP sensor values

Last post by totta crolla « Sat Mar 30, 2024 10:50 am
Replies: 4
by totta crolla » Wed Mar 27, 2024 8:44 am

4 Replies

26327 Views

Last post by totta crolla View the latest post
Sat Mar 30, 2024 10:50 am
Injector firing

Last post by allencr « Sat Mar 23, 2024 3:03 pm
Replies: 10
by totta crolla » Fri Mar 15, 2024 2:44 am

10 Replies

35580 Views

Last post by allencr View the latest post
Sat Mar 23, 2024 3:03 pm
Starting issues after piggyback ECU removal

Last post by Corey20v « Fri Jan 12, 2024 12:05 am
Replies: 3
by tofu20v » Mon Dec 11, 2023 1:41 pm

3 Replies

21034 Views

Last post by Corey20v View the latest post
Fri Jan 12, 2024 12:05 am
BT 20V TPS tuning

Last post by jondee86 « Thu Jan 04, 2024 8:18 pm
Replies: 5
by tofu20v » Sat Dec 23, 2023 7:13 am

5 Replies

25411 Views

Last post by jondee86 View the latest post
Thu Jan 04, 2024 8:18 pm
Good High tech 4AG info

Last post by Davegt27 « Thu Nov 23, 2023 12:41 am
Replies: 4
by Davegt27 » Tue Oct 10, 2023 7:20 am

4 Replies

26599 Views

Last post by Davegt27 View the latest post
Thu Nov 23, 2023 12:41 am
Brian Crower BC6355 Connecting Rods install

Last post by oldeskewltoy « Mon Nov 20, 2023 11:53 am
Replies: 1
by GalMR2 » Sat Nov 11, 2023 6:11 am

1 Replies

18133 Views

Last post by oldeskewltoy View the latest post
Mon Nov 20, 2023 11:53 am
I have a built 7A motor. Need some advice

Last post by totta crolla « Tue Nov 14, 2023 10:25 am
Replies: 5
by Ita Racer » Sat Nov 11, 2023 1:59 pm

5 Replies

27329 Views

Last post by totta crolla View the latest post
Tue Nov 14, 2023 10:25 am
20v Blacktop oil temperature high with cooler

Last post by jondee86 « Tue Sep 12, 2023 11:40 pm
Replies: 7
by tofu20v » Wed Sep 06, 2023 1:21 pm

7 Replies

30255 Views

Last post by jondee86 View the latest post
Tue Sep 12, 2023 11:40 pm
igf revisited

Last post by totta crolla « Sun Sep 03, 2023 3:34 am

by totta crolla » Sun Sep 03, 2023 3:34 am

0 Replies

48769 Views

Last post by totta crolla View the latest post
Sun Sep 03, 2023 3:34 am
need help, 4AGE started to run really rich, need to know why

Last post by jondee86 « Tue Aug 29, 2023 2:17 pm
Replies: 1
by blownmiata91 » Tue Aug 29, 2023 1:05 pm

1 Replies

18229 Views

Last post by jondee86 View the latest post
Tue Aug 29, 2023 2:17 pm
camshaft fitment

Last post by sirdeuce « Fri Aug 18, 2023 7:58 am
Replies: 3
by Kuromi_loves_toyota » Wed Aug 16, 2023 10:10 pm

3 Replies

23585 Views

Last post by sirdeuce View the latest post
Fri Aug 18, 2023 7:58 am
Starving for Fuel

Last post by Sprite « Thu Aug 10, 2023 7:18 pm
Replies: 6
by BlueAngel » Wed Apr 12, 2023 11:54 am

6 Replies

28909 Views

Last post by Sprite View the latest post
Thu Aug 10, 2023 7:18 pm

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