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Search: Posts Made By: Cdeez
Showing results 1 to 50 of 183
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Forum: DIY PROM
03-09-2019, 11:26 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

I Zeroed the "Maximum Spark Retard for Torque Managment" @ 414B and 414A..... I don't see any other parameters for torque managment. There aren't any hiding are there? Was seeing about 3 degrees less...
Forum: DIY PROM
03-07-2019, 03:16 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Well, I have got the AE fairly dialed in after monkeying around with the Delta tables... Now, most of the time, when you smash the throttle open it will drop the AFR down to low 11s or so and take...
Forum: DIY PROM
03-01-2019, 09:30 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

I have rethought my AE procedure. I opened a compare bin and copied every AE parameter I could find from a BMHK 454 bin... I figure this would be a closer starting point since my setup is running...
Forum: DIY PROM
02-27-2019, 01:27 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Thanks Orr and RBob.

RBob,

When you were talking about reducing the MAP and TPS AE filter tables, are you reducing the filter tables by 10% AND increasing the MAP and AE tables by 20% at the...
Forum: DIY PROM
02-26-2019, 09:57 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Looking at a log I did just now, it looks like the RPM flashes to about 2200-2300 and 92 MAP. 90 MAP and 2000 RPM on the wideband histogram has a value of 14.8 AFR.... You think this is too lean...
Forum: DIY PROM
02-26-2019, 08:51 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Still working on dialing in the AE. I have got it to not pop as often/bad when snapping the throttle open but when I smash the throttle to the floor it still does pop and go lean. Should I just keep...
Forum: DIY PROM
02-18-2019, 07:59 PM
Replies: 10
Views: 854
Posted By Cdeez

Re: 7427 $0E cold start tuning

Update if in case anyone else finds this in a future search. I used the 350 4L80 BIN I found since I figured it would be the closest starting point, BJDR.bin.

For whatever GM's reasoning was, they...
Forum: DIY PROM
02-18-2019, 07:55 PM
Replies: 9
Views: 1,011
Posted By Cdeez

Re: Map sensor not reporting in data stream?

Figure out why the MAP wasn't working. The conformal coating inside was soft as jello. Looks like it even plugged up the hole where the vacuum port is.

459345

459346
Forum: DIY PROM
02-07-2019, 07:58 PM
Replies: 10
Views: 854
Posted By Cdeez

Re: 7427 $0E cold start tuning

Well I tried monkeying around with those tables and it didn't help. Seems to have made it worse. I also bumped the whole AE MAP and AE TPS tables up by 30+ percent since I'm still having a lean pop...
Forum: DIY PROM
02-07-2019, 04:56 PM
Replies: 10
Views: 854
Posted By Cdeez

Re: 7427 $0E cold start tuning

Well this morning was the coldest it has been in a while around here. about 19*F..... The thing did not want to start at all.. Struggled with it for a few minutes and had to keep giving it pedal, and...
Forum: DIY PROM
02-05-2019, 09:52 PM
Replies: 10
Views: 854
Posted By Cdeez

Re: 7427 $0E cold start tuning

Thanks RBob and Orr89RocZ.

I will look around at those tables. Maybe the crank tables are what I need to focus on. It starts pretty easy now and holds a decent idle, but I almost always have to...
Forum: DIY PROM
02-04-2019, 08:52 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Well this is embarassing but it looks like the OEM GM fuel gauge is WAY off..... Filled it up last night and discovered this. Also, since filling it up it is NOT giving me fits when it shifts into...
Forum: DIY PROM
02-04-2019, 08:50 PM
Replies: 10
Views: 854
Posted By Cdeez

Re: 7427 $0E cold start tuning

Any idea what the table is called or what the address is?
Forum: DIY PROM
02-04-2019, 08:39 PM
Replies: 9
Views: 1,011
Posted By Cdeez

Re: Map sensor not reporting in data stream?

ULTM8Z,

Thanks for pointing me in the right direction. Sure enough, the MAP sensor had failed. Tested it like you described and used that video as well. Got 2 other MAP sensors from some other TBI...
Forum: DIY PROM
02-03-2019, 07:53 PM
Replies: 9
Views: 1,011
Posted By Cdeez

Re: Map sensor not reporting in data stream?

Thanks! I will look into this.
Forum: DIY PROM
02-03-2019, 12:01 PM
Replies: 9
Views: 1,011
Posted By Cdeez

Re: Map sensor not reporting in data stream?

While driving around and still working on figuring out what fueling this thing likes I'm still dealing with an intermittent lean pop in some of the middle to upper VE cells it seems. When this...
Forum: DIY PROM
02-03-2019, 11:32 AM
Replies: 10
Views: 854
Posted By Cdeez

7427 $0E cold start tuning

Still working on dialing in my most recent and most ambitious TBI build. Been chasing my tail for a while with the VE, flow rate and other parameters while tracking down exhaust leaks and other...
Forum: DIY PROM
02-03-2019, 11:25 AM
Replies: 9
Views: 1,011
Posted By Cdeez

Re: Map sensor not reporting in data stream?

And randomly the MAP sensor is reporting in the datastream again. I unplugged and plugged the ALDL connector back in. Could it really have been that simple?
Forum: DIY PROM
02-03-2019, 11:13 AM
Replies: 9
Views: 1,011
Posted By Cdeez

Re: Map sensor not reporting in data stream?

Thanks ULTM8Z. I have rebooted TP and the laptop several times with no result. Also replaced my ADX thinking that maybe it got corrupted or something but that didn't work either.

I'm having...
Forum: DIY PROM
02-03-2019, 11:10 AM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Thanks Orr89 and Fast......

It will rev cleanly when you open the throttle quickly with the engine idling and in park. When you're going down the road with the transmission in gear and you snap...
Forum: DIY PROM
02-02-2019, 10:27 PM
Replies: 9
Views: 1,011
Posted By Cdeez

Map sensor not reporting in data stream?

Well my most recent TBI tuning saga continues. Tonight, for no apparent reason after chasing my tail a while on the VE table, flow rate and AE tables, the MAP sensor stopped reporting in the...
Forum: DIY PROM
02-02-2019, 10:22 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

I dropped the injector flow rate number down a few points and started back over with the stock VE tables and it definitely SOUNDS better at idle and part throttle, even though it is a bit rich that...
Forum: DIY PROM
02-02-2019, 09:49 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Ok. I'll revisit the ve tables I think you're right about that. Now, randomly the map sensor is staying locked at 54.6 KPA on the scanner, so I cant resume dialing in the ve tables...... what the f?...
Forum: DIY PROM
02-02-2019, 07:26 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

I'm getting this backfire when cruising about 40%tps whenever the 4L80 shifts into 3rd gear. This is with the stock AE settings. Hit these two tables with a multiply by 1.3 then by 1.5 makes no...
Forum: DIY PROM
02-02-2019, 06:32 PM
Replies: 25
Views: 1,238
Posted By Cdeez

Re: TBI single plane AE tuning

Okay thanks. How about taking the "Delta Map AE" and "Delta TPS AE" tables and multiplying the values by 1.2 and repeating until the throttle can be quickly opened without a...
Forum: DIY PROM
02-02-2019, 12:31 PM
Replies: 25
Views: 1,238
Posted By Cdeez

TBI single plane AE tuning

What AE parameters are you guys focusing on when dialing in your AE for a TBI setup. I have been datalogging and dialing in the flow rate and roughing in the VE tables after putting in a 30 PSI...
Forum: TBI
01-12-2019, 12:22 PM
Replies: 6
Views: 2,398
Posted By Cdeez

Re: Injectors pulsing when engine is OFF?!

I think the 7427 PCM that WAS in there was bad or funky. Stabbed another JY PCM in there and that weird issue seems resolved.
Forum: DIY PROM
01-12-2019, 12:21 PM
Replies: 7
Views: 797
Posted By Cdeez

Re: 27 PSI spring tuning

Thanks RBob,

I ended up copying the values for those two tables from what I believe to be a late model aka 95 454 TBI which should have used the high pressure fuel system to start with. As Fast...
Forum: TBI
01-10-2019, 09:25 PM
Replies: 7
Views: 935
Posted By Cdeez

Re: VAFPR and dialing in high pressure spring

Would that be either of these two binaries? BMHK BHDF are both 7427 454 $0E codemask... Would these be the later model TBI 454 binaries you speak of that used high pressure injectors? The injector...
Forum: DIY PROM
01-08-2019, 04:14 PM
Replies: 7
Views: 797
Posted By Cdeez

Re: 27 PSI spring tuning

Where might those parameters be hiding in 7427 $0E mask?



RBob's EBL looks sweet and I've always drooled over it. However I need a way to shift the 4L80 I tossed in this particular truck...
Forum: TBI
01-06-2019, 05:02 PM
Replies: 7
Views: 935
Posted By Cdeez

Re: VAFPR and dialing in high pressure spring

Fast, so you were running 30 psi WITHOUT a VAFPR??

Will you please elaborate on what parameters you had to tweak to get idle not to be crazy rich?
Forum: DIY PROM
01-06-2019, 02:12 PM
Replies: 7
Views: 797
Posted By Cdeez

27 PSI spring tuning

Got a 27 PSI marine spring to feed my SBC that I'd estimate is ~400 FWHP. I have that spring in there and I'm now wondering what the best approach is to dialing in the fuel.

I read a LOT of mixed...
Forum: TBI
01-06-2019, 02:04 PM
Replies: 6
Views: 2,398
Posted By Cdeez

Re: Injectors pulsing when engine is OFF?!

I think the PCM might be the culprit. Going to slap another 7427 in there later!
Forum: TBI
01-06-2019, 02:04 PM
Replies: 7
Views: 935
Posted By Cdeez

VAFPR and dialing in high pressure spring

I read lots of mixed opinions on whether or not a VAFPR is a worthwhile setup on a TBI using a 7427 PCM. I currently have a 27 PSI spring in my regulator, hoping to fuel a SBC that I estimate should...
Forum: DIY PROM
01-05-2019, 11:48 PM
Replies: 22
Views: 2,722
Posted By Cdeez

Re: Rowdy 355 TBI time....

Fast,

are you still here? What would you do to get the 27 PSI spring to idle without being stupid rich???? I can't find any consistent information on whether or not it is or ISN'T a "bandaid" to...
Forum: TBI
01-05-2019, 10:33 PM
Replies: 6
Views: 2,398
Posted By Cdeez

Re: Injectors pulsing when engine is OFF?!

I don't think they're stuck open, they pulse normally and they do not leak fuel at all when the engine isn't running. Randomly, without any repeatable pattern whatsoever, they will pulse just like...
Forum: TBI
01-04-2019, 10:06 PM
Replies: 6
Views: 2,398
Posted By Cdeez

Injectors pulsing when engine is OFF?!

I built a pretty stout TBI and have not been able to work the bugs out until recently.... The engine will start easy and idle well and have good throttle response some times.... But other times it...
Forum: DIY PROM
08-06-2018, 01:03 PM
Replies: 4
Views: 998
Posted By Cdeez

Re: Moates Burn1 blewup?

Got a BURN2 in the mail today. Everything is good again. Looks like the BURN1 did in fact blow up. I tried to reflow the solder on the VPP pin of the burner as per their recommendation and that...
Forum: DIY PROM
08-01-2018, 01:04 PM
Replies: 4
Views: 998
Posted By Cdeez

Re: Moates Burn1 blewup?

I just emailed them. Hopefully they'll respond. I really need to get this burner working so I can write tunes with it again.
Forum: DIY PROM
08-01-2018, 10:43 AM
Replies: 4
Views: 998
Posted By Cdeez

Moates Burn1 blewup?

I have had a Burn 1 for some years now and it has always worked well. Recently it will always give me the "FAILURE: Verification Failed (not matched)" after programming a tune onto a chip. Have...
Forum: TBI
03-11-2018, 05:03 PM
Replies: 28
Views: 8,478
Posted By Cdeez

Re: Is the stock TBI intake manifold a bottleneck?

I can't speak about the low end torque just yet as all I have done is run it in the shop for a little bit. I'm still building a 4L80 to go behind it. I can tell from the sound though it's going to be...
Forum: TBI
03-11-2018, 04:59 PM
Replies: 8
Views: 2,588
Posted By Cdeez

Re: Found a Holley TBI for $5........

Yeah I can't believe the guy took $5 for it.

I will post whatever I find out about it. Me too, I have never seen one in person except this one.

That is a good point about IAC. I figured it...
Forum: TBI
03-11-2018, 06:15 AM
Replies: 8
Views: 2,588
Posted By Cdeez

Found a Holley TBI for $5........

I found this at a swap meet. I paid $5 for it...... It doesn't have injectors in it and the IAC hole is blank, not drilled or tapped.....

Anybody have any experience with these? I would never pay...
Forum: TBI
03-11-2018, 06:14 AM
Replies: 28
Views: 8,478
Posted By Cdeez

Re: Is the stock TBI intake manifold a bottleneck?

I can say now that after a few trial runs of the 355 I'm working on, the single plane intake DEFINITELY wakes up one of these TBIs. This thing just RIPS. Never seen or heard a TBI that sounds like it...
Forum: DIY PROM
03-11-2018, 06:10 AM
Replies: 22
Views: 2,722
Posted By Cdeez

Re: Rowdy 355 TBI time....

Turns out it was a TBI base gasket leak. Back to dialing this beast in.
Forum: DIY PROM
03-09-2018, 04:43 PM
Replies: 22
Views: 2,722
Posted By Cdeez

Re: Rowdy 355 TBI time....

I have installed the 28-30 PSI spring in the regulator and fiddled around with the BPC a little bit to see what it might like..... It's running pretty poor now with that spring in there. Probably...
Forum: TBI
02-27-2018, 06:20 PM
Replies: 28
Views: 8,478
Posted By Cdeez

Re: Is the stock TBI intake manifold a bottleneck?

Well, I meant crazy as in "interesting"... But I think my context was lost as it often is over the internet hahaha. I've never seen a blown TBI in person, only on the interwebz. Do you have any pics...
Forum: DIY PROM
02-27-2018, 06:19 PM
Replies: 22
Views: 2,722
Posted By Cdeez

Re: Rowdy 355 TBI time....

Hahaha no worries man. That spring fits in the stock TBI regulator huh?
Forum: TBI
02-25-2018, 06:04 PM
Replies: 1
TBI
Views: 440
Posted By Cdeez

Re: TBI

At this point you are nowhere near needing to spend money on an aftermarket throttle body.

The biggest limiting factors to a TBI engine in stock form in no particular order are this:
1. Exhaust...
Forum: TBI
02-25-2018, 05:52 PM
Replies: 28
Views: 8,478
Posted By Cdeez

Re: Is the stock TBI intake manifold a bottleneck?

I was hoping you'd chime in Fast. I have been looking around for the marine pressure regulator, not sure I know what to search for to find it. Do you know a P/N or where I would find one?

Dominic...
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