airspeed Posted January 10, 2014 Share Posted January 10, 2014 There is a 92 Comanche on the Denver Craigslist... It is way over priced and not that good of condition, any way I read a statement in the listing. -Fuel injector upgrade from old single port injectors to Dodge Neon four port injectors. Better fuel economy and throttle response. Is there any truth to this statement? Link to comment Share on other sites More sharing options...
yxmj Posted January 10, 2014 Share Posted January 10, 2014 Yes....but it is a $60 30min. in the drive way upgrade.........not worth extra $$$$$$in a sale price Link to comment Share on other sites More sharing options...
Blue88Comanche Posted January 10, 2014 Share Posted January 10, 2014 Is the injector swap worth the money? Any other mods needed to go along with it on a Renix 4.0? Link to comment Share on other sites More sharing options...
Lee21490 Posted January 10, 2014 Share Posted January 10, 2014 Is the injector swap worth the money? Any other mods needed to go along with it on a Renix 4.0? Why not? Suposed to give you a little extra mpg, More responsive pedal / etc. Did mine awhile ago. If you have the spare money why not. Link to comment Share on other sites More sharing options...
Blue88Comanche Posted January 10, 2014 Share Posted January 10, 2014 Wish I had extra money, this regearing process is killing my wallet. Lol What year neon did you get your injectors from? Where they new or used? Link to comment Share on other sites More sharing options...
HOrnbrod Posted January 10, 2014 Share Posted January 10, 2014 Unless the customer asks for the Bosch multiport injectors or similar injectors specifically, Hesco builds all their strokers using OEM Mopar single port injectors, mostly the gray top 49 PSI p/n 53030778 injectors, then dial them in with an adjustable FP regulator. They outperform the multiport injectors on the dyno. And the multiport injectors are cheaper too. As far as economy and being more responsive, any noticeable improvement is probably because you have replaced your old dirty injectors with newer clean injectors. And from listening to your uncalibrated butt dyno too. :yes: Link to comment Share on other sites More sharing options...
Oyaji Posted January 10, 2014 Share Posted January 10, 2014 Unless the customer asks for the Bosch multiport injectors or similar injectors specifically, Hesco builds all their strokers using OEM Mopar single port injectors, mostly the gray top 49 PSI p/n 53030778 injectors, then dial them in with an adjustable FP regulator. They outperform the multiport injectors on the dyno. And the multiport injectors are cheaper too. As far as economy and being more responsive, any noticeable improvement is probably because you have replaced your old dirty injectors with newer clean injectors. And from listening to your uncalibrated butt dyno too. :yes: That there is some good advice. The only thing that might be better would be getting injectors that have been matched for flow, though considering modern quality control even that might be debatable. (Does anyone know the permissible flow spec deviation, that is, ± what % of flow is acceptable, for new injectors? If you do, chime in, please.) Flow-matching services on Ebay claim as good as ±0.5% for their offerings, which are old injectors cleaned, grouped for the amount they flow in a test fixture, painted, packaged, and shipped. One of our members here (who hails from Attala, AL iirc, but I forgot his name) recently had a problem with one of those services - maybe he will offer some advice on which outfit to avoid. Link to comment Share on other sites More sharing options...
Remy B. Posted January 11, 2014 Share Posted January 11, 2014 if you are not really enhancing your breathing capacity of your engine then I will say your improvements will not be noticeable the way you think, you match your fuel to the air, if your engine will not suck more air then you don't need to supply more fuel, your ECU have some room for that and will match the fuel with their stock injectors, that of course if you don't have serious money on your engine internals. Link to comment Share on other sites More sharing options...
Remy B. Posted January 12, 2014 Share Posted January 12, 2014 Sorry my mistake, just realize you are talking about something different, I had in my mind more volume delivery and you are talking about efficiency of design, no comments on this, have not tried so I can't speak about it. Link to comment Share on other sites More sharing options...
cruiser54 Posted January 13, 2014 Share Posted January 13, 2014 The single, biggest reason for changing out the OEM injectors is the fact that they can leak where the housing is crimped together, causing gas to spray on your hot exhaust manifold. The MPG gain is minimal, better idle quality is nice, as is the SLIGHTLY better throttle response. Link to comment Share on other sites More sharing options...
mnkyboy Posted January 13, 2014 Share Posted January 13, 2014 I swapped the Bosch yellow tops into my Renix XJ, didn't seem to make any difference. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now