Hi guys,

I finished my Superram install yesterday and I finally try it.
There is NO power at all when on the first speed when the throttle body is wide open??!! The power is seem to come on the 1st & 2nd gear but only at a high RPM range (almost red line). The afpr is set at 45Lbs. What is the O.E. TB specs? I think is around 38Lbs? Also, the idle is very rought. I know that the 224-230 cam is a rough idle cam and I must tell you that I do not have my custom Eprom yet...

Is it only the chip that would make that much a difference???
I am currently running a 3:42 and will install a 3:73 with an heavy duty Zexel Torsen by next week. Previously, my car was responding much better with a stock Eprom with the ZZ3 camshaft.

Please tell me what could be the problem.

 

did you make sure your timing was correct? Had an issue like your after I installed my SR and it was a timing issue..... good luck

 

Yes the timing is setted at 6. But when I look at it with the check light, it is bouncing from 4 to almost 8...

I just double check the fuel with a meter and it shows a 42-43. On a hard start, the engine seems to run to rich and you can see it trought the exhaust pipes. When the RPM is getting higher, the engine seems to breath much better and it responds like hell...

Any of you ever started a Superram combo with a stock chip???

Again, will the custom chip will be the solution???

C'mon guys, share your experience,

Thanks in advance,

Pat

 

when your checking your timing did you remember to disconnest the black wire with the orange strip. I'm thinking thats why is jumping from 4 to 8 when you check it with the timing light. I used to run the SuperRam with the stock chip without any trouble. I'm running my timing now at 12*BTDC and fuel at 49 PSI. hope this helps ya out

 

Correct me if I'm wrong, but the EST bypass wire is tan with a black tracer.

 

your right .....sorry about that

 

Yes I disconnected this wire. How big are your injectors? At 49, is your engine running rich or right on the spot?

Pat

 

for starters, iwould drop that fuel pressure down to about 38psi. with your 30 lb injectors set at 45 psi, you are flowing enough fuel to support about 560 H.P.. the superram has a large plenum and these are touchy with large duration cams, unless there is alot of cubic inches under it. you will have unstable idle and harder cold starts. but with a little tuning im sure your engine will run strong. the s/r gives you a little more useable rpm. and it doesent really kill bottom end like the magazines says it does. smaller tpi engines i have found out, like less timing as compared to larger engines. try about 34 degrees total. also double check all your vacuum port areas , like in the back near the power brake booster. my superram developed a leak around the lid , causing erratic idle. dont run out and get a recalibration yet. play with what you got and im sure youll get it sorted out......tom

 

I have the stock 22lbs. injectors..... the car runs great 13.20's with stock heads and cam

 

O.K.,

I will have my chip burnt asap and I am anxious to see if it's the only problem... With another trial with the afpr setted at 42, I found that the engine is running to rich! I really can see it trough the exhaust pipes. I tried to lower the pressure at 38 and it just won't go beyond the 42??? Is it the minimum setting that BBK AFPR is made to? Maybe a defective AFPR? As for the engine components, they are all new. My only conclusion for now is that the computer with the stock chip cannot operate this new combination.

I will give you my updates asap, if you still have some ideas and/or experience, please share them so I will be on time for the ending drag season:lala:

Pat

 

Most likely your prom. Your trying to run a totally different combo than what the factory prom was set for. Running 30lb injectors and being programmed for 22 is only going to make the car run stupid rich. This is probably why the car has no power up until the higher rpms. Before you keep speculating, add the final piece of the combination(custom prom) then if you continue to have problems let us know.

 

what kind of fuel pump are you using on the vehicle?

 

I am still using the factory fuel pump... Don't worry, I will order a Walbro 255 this week along with a prom from Fastchip. I know that the stock chip wouldn't handle the new parameters. But I wanted to start the engine with it to see the difference and I heard some guys running Superram with stock chip! I didn't believe them and now I have my answer (with speed density and big duration). I was running a fastchip prom with my previous engine 5.0 tpi long time ago, and I wonder if they are still very good in doing it? Tpis and the others are just to expensive...
Any suggestion prior to order..

Thanks again, Pat

 

watch the killer fuel pumps, with my aeromotive A 1000 , i had to modify my fuel rails. coming off the factory style adjustable regulator, the line makes a sharp bend, that wont let your pressure go down past 52 psi (thats what mine read). i had to remove all factory lines, and weld their holes shut. then drill the rail ends and weld an -6 fittings, put a split from the main fuel supply line, run one into each front rail, run two from the rear of the rails, and run these to the aeromotive regulator, then one line from regulator to the return line. this is pretty over kill for the power im making but there was no other way. i already had mega bucks wrapped into this fuel system. the A1000 probably out flows the pumps you are talking about , but i just wanted to mention, just in case anybody has problems lowering their fuel pressure......tom dyno tested @ the fly 489 h.p 569 lb. ft. tq 436 s/r, brodix track 1s, comp solid roller.

 

I agree with David above, those 30# injectors are way too big for your mods. Recommend installing 24#/hr SVO injectors and get a custom chip. If you got the old injectors, put them in and see how the engine runs.

Right know you got to be running real rich in PE mode. The stock chip has 21.5#/hr in the constants table. Therefore, the ECM is still caliculating a pulse width for the stock injectors and resulting in tons of fuel at WOT.

 

FWIW - I just did my install in May, and it wouldn't hardly even run with the stock chip. I used 24# Holley injectors on mine, the 30's do sound pretty large.....

I am using the factory fuel pump, no prooblems.

I'm surprised you could drive it at all with the stock chip, of course I went from a stock TPI 305 HO to a 383 with a SuperRam, so my changes were a lot "bigger"......

 

Before you order a Custom Prom from Fastchips you might want to look on the DIY Prom board and see if your interested in doing your own proms, it is much more rewarding, if you make changes later you won't have to get a new prom just Redo you own and you can get the basics rewuired to do this for about what you gonna pay for a Custom Chip.

Just thaught I would mention this.

Just my .02

 

I already ordered from fastchip. I will let you know when it's arrive on friday if it's o.k.... Now about the injectors, I know I am still learning but from what I was told, the 24Lbs are good till 380hp, of course they could hold a low 400hp but I didn't want to miss gas so after talking to an SLP Canada technician (Zeke's), he told me to go with the 30LBS easily. And he added to avoid Accel injectors... I still have the factory 22Lbs and from an 88 corvette engine, but before I go over the Superram removal, I am curious in running it with the new chip. Then if I still have some problems, I will have no option but to go for the big job.

Thanks again for all your helps,

I will get back with the condition on friday, till then, I can only wash her and take a nap in the car...

Pat

 

Oh! I forgot to mention that after all spakplugs verification, they were all black and still wet!!! So there is no defective injectors as it appears to be...

Pat

 

A custom setup like yours can NOT be tuned thru the mail. The only way to tune it properly is for the tuner to have access to the car for an extended period of time.

I second the recommendation to "burn" your own Eproms. I am doing that now with my 395 cu in stroker MAF car. Back a few years ago, I was very concerned about burning my own Eproms. But I learned, not bad at all, and for an investment cost of about $250 have been doing it now on an on and off again for about 5 years. Get started by reading Traxions intro to burning chips.
You will find it in the tech section.

 

Not to mention when you had them burn the chip was it Burned for the 22lbs injectors or 30lbs. If you switch injectors you will need to have the Injector Constant changed. Do fast chips come with a Chip adapter or are they soldered into the Memcal

 

i know it stinks to even think of removing the superram, but believe me, you will become a pro. i also ran my injector harness on the inside of the runners. this is expecially helpful if you have tall valve covers. and along with the info i e-mailed you, its not that bad. it all comes with the territory.

 

O.K.! I received the chip today and it's worst than before!!Than EVER!!!!!!! The engine is running much much to rich! There is a constant deep smoke coming out the tailpipes and the idle is very bad! The OE chip was better. I have to give gas to keep it alive and when I give more, it died. I removed one sparkplug on each side and they were leaking gas!! They showed a black coat. Now I Emailed Fastchip and will call them tomorrow...

Is this the beginning of the end! I was told by my mechanic (Bro) that he witness some guys sending back their custom prom again and again to make it right. I still have my 22Lbs injectors but to reinstall them would be a waste of time since they won't handle the higher hp! I heard some guys from this board running 30Lbs, and even more. So with good calibration, I am sure it will handle it. Tomorrow I will go to have an O2 bung install to verify it with a wide band. We will also verify it with a tech 1 to make sure every sensors are in working condition( the Map is new). There is no SERVICE ENGINE SOON so the sensors seems good, BUT! Double check is never too much.

If you have any suggestions or experience with 30Lbs/speed density, please help!

 

And to answer MPTFI-MAF, the Fastchip custom come's only with a memcal. You do have to install the OE chip on the side... I am a beginner in the Eprom world so I don't know any much. I red the Do it yourself pages but for 350,00$, I tought it was worthed to give it a try. If I had spare money, I would certainly buy the Accel Gen 7 unit. Maybe this winter.

Pat

 

Now that I spoke with John from Fastchip, I am more than lost... He told me that they setted the chip for my 30's and he ask me to send it back for a double check... When I told him that the OE chip handled them much better (especially when the O2 sensor is detecting in close loop), he says that I might have another problem. I asked him wich one? He answered: there could be a ton of problem! Would you send it back to him? If I new that it would be so annoying, I would have buy it directly at the local performance shop (who would buy it from Fastchip anyway). Now I am more than

SUGGESTIONS PLEASEEEEEEEEEEEEEEEEEEEEEE!!!!!!!

 

dont be misled about the 24s only being able to support 380 to 400 h.p! dont forget, there are other things to consider. tpi engines are very efficient at converting fuel to power. they yield a great BSFC. how much honest h.p. do you think you are making. ill bet its around 380, and thats being optimistic.if your engine has a BSFC of, lets say, .50, the 24s will support 432 h.p. at a pressure of 55 psi, if your engine is more efficient than .50, and its maybe a .45, then the same 24 injectors will support 479 h.p. at the same pressure. no matter how you look at it the 30s are too big. all the signs are there. your engine has no problem turning a half lb. of fuel into one h.p. (hence the .50). tuned ports really shine in the torque dept. anyway. ive seen many people go too large on injectors, and have the same problems that you are having. thats what is so great about the adjustable fuel pressure regulator. you can tailor you fuel requirements, as long as the engine is not really radical. my 436 has 36s, that are currently going to 30s. ive tried 24s, and i have to run just a little more pressure than i care to. if you have to run at 60 psi or so, then its time to maybe kick it up a notch. you cant have a small injector constantly open to fuel an engine either. try the 24s, and have a chip done for these, and ill bet youll be a lot happier....tom

 

Thanks Tom!

I am getting in a point that I believe BIGGER IS NOT BETTER!!!
BUT, none of the chip burner and/or tuner says the 30's are too big. In fact, they told me to stick with them and have a chip burnt with fine tuning. I just go crazy when John from Fastchip tells me it usually works just fine on the first order and on the opposite way, a tech from PCMFORLESS emailed me it will be very difficult to have you chip burnt over the mail! He recommands me his burner kit along with my laptop. Now, SLP Canada insure me it would be much better to get this Accel Gen V11 to get it right. I am running out of money and winter is approching soon. I just can't figure I'll loose the 350.00$ + 45.00$ next day shipping cost from Fast!!! I want to make a wise decision so I am taking the week to make my final decision. I will let you guys know how it works for me

Peace!

 

Man to tune my car myself it cost me...

-$100 for a laptop (but you already have one, and I don't consider this part of the tuning cost really)
-$30 for an ALDL cable (can be cheaper if you make your own...I was honestly just too lazy and actually had a few bucks to burn)
-$65 for an EPROM burner off eBay
-$8 for a bin switcher (technically, NOT needed for anyone, but I felt like having a few more options)
-$7 for a ZIF socket
-$10 for 20 27128 chips to start off with
-$12 for 2 29C256 EEPROMs so now I can re-use them.

You can get away without the bin switcher or the 27128 chips and just buy one 29C256 to start. You already have a laptop.

Total cost for REQUIRED parts? $120USD, and that's with a few extra dollars figured in for shipping I may have left out up above. Most of those prices were shipped, except the ones for the chips.

Oh and your 30's are a tad big for that car. If you don't feel comfortable with the 24's, then go buy some 26's out of a 99+ LS1, or some 28's out of a '98 LS1...then again, I think the 28's will be just as bad. I wouldn't go over 26 or so for that setup.

My plan is to put 24's out of an LT1 into my 305 along with the LT1 heads and intake sitting in my garage. I could probably get along fine with 22's, but I got a nice deal on the 24's out of an LT1. By the way, I don't currently have an AFPR, though I will get one for the LT1 stuff. 24's shouldn't be *TOO MUCH* for my car as I'm hoping to be pushing about the same amount of power you are, and I can tune it myself by changing the injector constants in 30 seconds with a new burn.

 

Hey! Never too late to give you fresh updates...

I was shy and felt to let you know what was the real problem over my idle/air & fuel ratio/power problem! In fact, my buddy and I installed the OE chip backward on the memcal...It was kind of dark outside and we didn't pay to much attention of the black and white hand made instructions. After several verifications, I end up asking my mechanic friend if it's possible that the memcal or the OE chip was correctly installed?

We double checked and found that the chip was on the wrong side! I ordered a new one to make sure it wasn't burnt (after talking to Fast).

Now that everything looks good, we tuned it with the Wideband. At the beginning, it was running lean. I increased the AFPR to 50 and when the car is on idle, it runs like OE specs. When the TB is wide open at 40mph, then it runs richer as wanted... I am satisfied with the Superram: no leaks higher RPM band as stated...I didn't take it at the track yet because I didn't installed the rear end yet.

I will post all Dynograph asap. How much HP/flywheel could I really make??? Seriously, it doesn't seem like a 450 near by HP as I red on the Vette forum!? I know my heads are killing the potential but again, would the AFR make a 50 HP difference?