TDI Injectors replacement

Puller85

Member
Joined
Sep 16, 2021
Location
Kentucky
TDI
1.9 TDI
I'm looking to put new injectors in a ALH. I was going to have them custom built for a better injection pump and a bigger turbo. Is it better to rebuild the factory ones or is there a better easier option? I know on some CAT engines you can run John Deere injectors and make more power, just curious if you could do the same for the ALH?
 

Mozambiquer

Vendor , w/Business number
Joined
Mar 21, 2015
Location
Versailles Missouri
TDI
1998 VW Jetta TDI. 1982 VW Rabbit pickup, 2001 VW Jetta TDI, 2005 VW Passat wagon TDI X3, 2001 VW golf TDI, 1980 VW rabbit pickup,
I'm looking to put new injectors in a ALH. I was going to have them custom built for a better injection pump and a bigger turbo. Is it better to rebuild the factory ones or is there a better easier option? I know on some CAT engines you can run John Deere injectors and make more power, just curious if you could do the same for the ALH?
Yes, you can. Talk to @Franko6 he does a good job of doing injectors.
 

dhangejr

Veteran Member
Joined
Mar 1, 2017
Location
PNW is my home
TDI
mk4 Jetta
I have some ised injectors that will give you more power. They are best with a tune you will smoke with out them bit s bigger turbo will clean it up an IC even more so (m
 

dhangejr

Veteran Member
Joined
Mar 1, 2017
Location
PNW is my home
TDI
mk4 Jetta
In short the answer is yes lots of peole drop nozzles on factory stocks , NUT this can and eventually will damage the engine. I seen my friends Cummins melt from over fuel…so
 

Mongler98

Top Post Dawg
Joined
Mar 23, 2011
Location
COLORADO (SE of Denver)
TDI
98 Jetta TDI AHU 1.9L (944 TDI swap in progress) I moved so now i got nothing but an AHU in a garage on a pallet.
It's best to do a hot swap with kerma or send them out to be done by a proper vendor who can pop teat and shim tune them with 2 stage setup. Not many have this ability. A DIY is risky but it's cheap.
Talk with a tunner and search and read thes forums. Plenty of usefull info here to educate yourself with
 
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