Aftermarket Product ReviewProvide questions and answers about aftermarket parts for the Third Generation F-Body.
Welcome to ThirdGen.org!
Welcome to ThirdGen.org.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!
I know that some people have had success with Accel injectors, and some haven't. Myself, I have just been a "victim" of poor Accel quality parts.
I've been posting a couple of topics in regards to my no-start recently. Basically, a friend of mine rebuilt my 350 ( I was the learning apprentice ) from top to bottom. Engine would crank, but no start. After doing some basic troubleshooting, we realized it was a fuel issue.
Anyways... after a lot of testing and troubleshooting, it turns out that ALL 8 BRAND NEW Accel injectors were DEAD. They were stuck at the close position (I guess better than staying open and flooding the cylinders..).
After inspecting the injectors, I found that the pintle was stuck closed. Played with it a little and was able to move the pintle just a little bit. Stuck them back in the engine, and this time the engine would fire, but would die very shortly after you crank it.
IMO, STAY AWAY FROM ACCEL injectors (and other related ignition components.. I've also had bad "luck" with their ign modules).
This ad is not displayed to registered members. Register your free account today and become a member on ThirdGen!
Sponsored Links
Registered users do not see this ad. Click here to register for free!
I know that some people have had success with Accel injectors, and some haven't. Myself, I have just been a "victim" of poor Accel quality parts.
I've been posting a couple of topics in regards to my no-start recently. Basically, a friend of mine rebuilt my 350 ( I was the learning apprentice ) from top to bottom. Engine would crank, but no start. After doing some basic troubleshooting, we realized it was a fuel issue.
Anyways... after a lot of testing and troubleshooting, it turns out that ALL 8 BRAND NEW Accel injectors were DEAD. They were stuck at the close position (I guess better than staying open and flooding the cylinders..).
After inspecting the injectors, I found that the pintle was stuck closed. Played with it a little and was able to move the pintle just a little bit. Stuck them back in the engine, and this time the engine would fire, but would die very shortly after you crank it.
IMO, STAY AWAY FROM ACCEL injectors (and other related ignition components.. I've also had bad "luck" with their ign modules).
Thats the older design which is plagued with problems, the black bodied ones are garbage, always buy the newer silver metal body ones, i have sold tons of the new style body injectors without any issues.
I did notice the newer body in their latest catalog. I'm thinking of going to get some ford 30#'s instead. I figured that they are all manufactured by bosch (correct me if I'm wrong).. but out of principle, I don't think I'd want ACCEL parts anymore.
Bosch III is really nice Dont think you could get any better injectors on the market., Ive tested 4 types.
And the Accel was crap (old design, dont have good spray pattern either..)
Ford (denso made) was crap to, dont like pressure over 39psi...
Multec well worked well when they are clean and brand new, 19 years old = not soo much like.. Bosch III GREAT injectors, beatiful spraypattern and flowmatched, Jon at Fuelinjectorconnection (FIC) sells them for 169,95 with 3 years warranty. He also modifies them so they are the same height as the stock multec..
Here you got a picture of the injectors Ive tried.
As you may see on the nozzle the:
Multecgot one large hole, wich gives a decent spraypattern but it will fail and lock up at high load / high rpm..
AccelGot and smaller nozzle, this spraypattern is good for tubros not for an stock / almost stock engine..Still its accelcrap, So I wouldnt buy them again...
Ford (Denso)Almost the same nozzle as the accels.. but the Denso dont like pressure above 39.15 PSI = no good for camaros.. we are running higher pressure.
Bosch III (modified)Got 4 smalls holes wich gives a great spraypattern it makes it spray real fine, wich helps the spark to burn it good. They also flowmatched and flow exatcly the same
I Was definately looking at the Ford Motorsport Red tops, but I'll look up FIC. Thanks theking.
Sounds good to hear, but you will not find anything but good aboyt Jons injectors Call him up and talk to him, he will help you out with some really good injectors
ATI Procharger pointed me in the direction of their main guy (Larry) that does all the 5.7 TPI installs (using an FMU)... I spoke to him and he told me he replaces the stock GM TPI injectors with Ford 24lb ones "cuz the GM lock up under pressure before the Fords do" (being that the FMU boost pressure along with supercharger...)
I know quite a few people using Ford injectors in blown applications (not with FMU) & this is the first I've read about them locking up / bad review... ???
Not trying to argue, just posting what I've heard, & I just bought a set of 24's to use in my TPI / Procharger system...
dont like pressure over 39.15 PSI (if they are Denso made..It says Denso on the side of them, if it does, return them and ask for Bosch made or Call Jon up at FIC and buy his Bosch III.)
Just want others to know the difference so they dont need to buy bad injectors. Go with Bosch III and get really happy
It looks like the Ford Denso pictured above, but it's Bosch...
I found this concerning the Bosch ones...
Flow Rate 24.00 lb/hr at 43.5 PSI
Operates at higher fuel pressures without loss of metering control. Great for blown applications where increased fuel pressure and precise metering are required.
The Ford / Bosch he recommended with FMU (that will not lock up like GM ones) are part # M-9593-A302
I'm looking to run my 305 with FMU & later, when I upgrade my engine, get the proper injectors and monitor boost...
One of the most well known shops for GM "chip" tuning says the accels are absolutely the hardest to work with. They highly suggested the Ford Motorsport injectors, BUT, in my case, I wanted stock replacements for my 305 (19lbs) injectors. The Ford injectors are rated at Ford psi which is like 35psi instead of the 45ish our TPI cars run at, so the Ford injectors end up flowing like a 22 or 24 psi injector would, which means you will have to cut back fuel pressure. I ended up having to set it to around 38-40psi.
hey luvofjah did you talk too larry from assc/lrs performance .....he's like the guru of procharger tpi systems .... had my procharger tuned by him and YES HE HATES THE ACCELS and told me to go with ford 24lb injectors and have not had any problems
As long it dosent say Denso on the side of the injectors you will do fine, But as you may see Ford Motor Sports writes in their info file that they are set to 39.15 PSI on those injectors with #M-9593-A302
Just dont want people to buy bad injectors. just trying to help people out not to get bad /shitty injectors.
I can say that the Bosch III is the best ive tested of all the ones that ive tried. So I would go with them from FIC anyday (they are 22lbs/hr).
i heard the same things about the accels as well as venom. i went with the ford SVO 30# red tops for my HSR 383... heard nothing but good things about ford injectors.... also ford does rate them at a lower psi... something in the mid to high 30's... my 30# SVO's flow about as much as a 32# GM style.
my red tops say ford on the side... so since it doesnt say denso im good right? got em for 200$ shipped new from a ford dealer.
In my picture above you see where the grey meets the prange theres a flat surface there it says Denso. So as long you dont see Denso text on the sides then you shoudl be fine
Bosch III is really nice Dont think you could get any better injectors on the market., Ive tested 4 types.
And the Accel was crap (old design, dont have good spray pattern either..)
Ford (denso made) was crap to, dont like pressure over 39psi...
Multec well worked well when they are clean and brand new, 19 years old = not soo much like.. Bosch III GREAT injectors, beatiful spraypattern and flowmatched, Jon at Fuelinjectorconnection (FIC) sells them for 169,95 with 3 years warranty. He also modifies them so they are the same height as the stock multec..
Here you got a picture of the injectors Ive tried.
As you may see on the nozzle the:
Multecgot one large hole, wich gives a decent spraypattern but it will fail and lock up at high load / high rpm..
AccelGot and smaller nozzle, this spraypattern is good for tubros not for an stock / almost stock engine..Still its accelcrap, So I wouldnt buy them again...
Ford (Denso)Almost the same nozzle as the accels.. but the Denso dont like pressure above 39.15 PSI = no good for camaros.. we are running higher pressure.
Bosch III (modified)Got 4 smalls holes wich gives a great spraypattern it makes it spray real fine, wich helps the spark to burn it good. They also flowmatched and flow exatcly the same
Been reading around and alot of guys having problems with their cars.
The stock injectors seems to start failing now (around 20years) and
there is a BIG difference between all injectors. Therefore I just writing this again so all of those that have problem see this thread.
If you have 1 bad injector, it dosent matter how many parts you throw at it, it will never run good unless you change the bad injector..
Bosch III for 169,95 is a REALLY good price and a great injector.
Ive never got better idle and throttle response. and ive tested some injectors..
Just want others to know how good they work and save them the headache.
So where thinking that my cars injectors are bad, but i want a direct replacement set so i dont have to get it tuned. Its a 305 LB9 and I think that they came with 19# injectors stock, correct me if im wrong. Do the Bosch III's come in 19# ones im gonna go with them i think if this is the problem, im checking FIC.com and dont really see any. Thanks Nate
Call Jon up at FIC and he will help you chose injectors, he is a really nice guy and he really wanna help you get the right injectors. so call him at : 770-888-1662
Go with the FIC BOSCH III injectors I have looked and have not found any set at the price John sells them and a 3 year guarantee. I just got a set and as soon as I get all my other parts that is what I and going to install. Oh and he does flow match them. He also shipped them as soon as I sent the payment. Do a search on FIC here on TGO no one has had anything bad to say about them. That is what sold me on them. They are set up to be a direct replacement for our cars no mods needed. How much better can it get.
Remember that the Bosch III injectors from FIC is the only ones that will have a perfect/direct fit to your car, all others injectors are little shorter.
Jon has come up with a way of making them little longer for a perfect/exact match on the fuelrail. Also he leaves 3 years warranty, never seen another company give that..
Have that in mind to when ordering injectors. I never got better service and injectors then from FIC.
Just want others to know that. Please feel free to check out this thread for more info.
King, thanks for the great info. I've been looking around for a new set, and now I'm going with the 3's. I'll be talking to FIC in the next few days to make an order.
__________________ I guarantee that turn signals came standard on your vehicle. Try using them.
King, thanks for the great info. I've been looking around for a new set, and now I'm going with the 3's. I'll be talking to FIC in the next few days to make an order.
No problem :-)
Also if talking to Jon send him my regards :-)
Get back with som info on the change, I have tons of pictures and info on my homepage on injecor replacement (when I have tested several brands) so if you have any question or anything feel free to ask in PM or here, I will gladly try and help out.
Pics of my 89 Iroc 
