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Search: Posts Made By: tequilaboy
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Forum: C4 Tech/Performance
Yesterday, 03:44 PM
Replies: 9
Views: 177
Posted By tequilaboy

At least you've identified the stall speed.

At least you've identified the stall speed.
Forum: C4 Tech/Performance
04-15-2024, 08:56 AM
Replies: 33
Views: 612
Posted By tequilaboy

That ADS bin is quite a hack job. Its a $32B mask...

That ADS bin is quite a hack job. Its a $32B mask bin similar to ABTT with 158 byte differences (including prom id and checksum bytes). Maf tables are garbage and nonlinear. Too much spark advance....
Forum: C4 Tech/Performance
04-13-2024, 06:56 AM
Replies: 33
Views: 612
Posted By tequilaboy

This is getting confusing even for me. If...

This is getting confusing even for me.

If you load a 16 kb bin file to the buffer, the buffer should appear as shown above with all of the data residing between 0x0000 and 0x3FFF. When you write...
Forum: C4 Tech/Performance
04-11-2024, 06:14 AM
Replies: 33
Views: 612
Posted By tequilaboy

If writing a 16 kb bin file to a blank 27SF512...

If writing a 16 kb bin file to a blank 27SF512 (64 kb) eeprom, set the Device Offset to 0xC000, so that the programmed file will reside between 0xC000 and 0xFFFF.
Forum: C4 General Discussion
04-09-2024, 11:01 PM
Replies: 12
Views: 297
Posted By tequilaboy

Here's something you can do to test the IAC: ...

Here's something you can do to test the IAC:

With the engine idling, move the tps to simulate a partially open throttle (without actually opening the throttle). The IAC should follow the tps...
Forum: C4 Tech/Performance
04-09-2024, 08:42 PM
Replies: 33
Views: 612
Posted By tequilaboy

Looks to me like the eprom is not oriented...

Looks to me like the eprom is not oriented properly in the programmer. Try it with the notch facing towards the handle like it is shown in the graphic display (Device Location).
Forum: C4 General Discussion
04-09-2024, 07:34 PM
Replies: 12
Views: 297
Posted By tequilaboy

I suspect that the IAC is not moving properly in...

I suspect that the IAC is not moving properly in both directions and is losing synchronization over time causing it to gradually open (but not close).
Forum: C4 Tech/Performance
04-07-2024, 01:00 AM
Replies: 5
Views: 184
Posted By tequilaboy

Here are some values shown in table form in an...

Here are some values shown in table form in an attempt to clarify.

In this example the conversion is (0.390625 * X - 50.000000) which is typical of a variable that can range +/- 50% in a single...
Forum: C4 General Discussion
04-06-2024, 05:54 PM
Replies: 7
Views: 224
Posted By tequilaboy

There are limit (speed) values for the...

There are limit (speed) values for the lock->unlock and unlock->lock transitions for low gears and high gear (none of which are set to zero). The ecm also uses the vss and rpm signals in order to...
Forum: C4 Tech/Performance
04-06-2024, 05:13 PM
Replies: 5
Views: 184
Posted By tequilaboy

For a given table, you can select show raw hex....

For a given table, you can select show raw hex. You can only make changes up or down by one increment (hex digit). Hex is simply a numerical base of 16 rather than a base of 10. Decimal values of...
Forum: C4 General Discussion
04-03-2024, 05:46 PM
Replies: 12
Views: 297
Posted By tequilaboy

The idle rpm cannot increase without sufficient...

The idle rpm cannot increase without sufficient airflow. Scan data will help you to determine if it is metered or un-metered airflow.

This will give you an idea of how much airflow is required to...
Forum: C4 Tech/Performance
03-29-2024, 03:49 PM
Replies: 3
Views: 110
Posted By tequilaboy

Did you happen to relocate the MAT?

Did you happen to relocate the MAT?
Forum: C4 General Discussion
03-22-2024, 11:28 AM
Replies: 14
Views: 358
Posted By tequilaboy

I posted a handy gear calculator above. Input...

I posted a handy gear calculator above. Input the tire size in Revolutions Per Mile for realistic results. It should answer almost all of your questions.
Forum: C4 General Discussion
03-21-2024, 05:46 AM
Replies: 14
Views: 358
Posted By tequilaboy

Pick your poison. More gear is easier on the...

Pick your poison. More gear is easier on the clutch but is harder on the D44, stub-axles, u-joints, 1/2 shafts, spindles and tires. Which of these items would you prefer to replace more frequently?
...
Forum: C4 Tech/Performance
03-17-2024, 03:30 AM
Replies: 11
Views: 310
Posted By tequilaboy

Piston to valve interference is what cause the...

Piston to valve interference is what cause the pushrods to bend. Probably have a few bent valves as well. It appears that a couple of the exhaust valves are not seated normally.
Forum: C4 Tech/Performance
03-16-2024, 11:21 AM
Replies: 2
Views: 134
Posted By tequilaboy

Normal timing with EST connected is 20 degrees...

Normal timing with EST connected is 20 degrees btdc. If this appears to be zero, you must rotate (advance) the distributor to put the mark well off the scale. You should then be able to find the...
Forum: C4 Tech/Performance
03-02-2024, 03:37 PM
Replies: 9
Views: 436
Posted By tequilaboy

I thought the ZR1 booster was a smaller diameter...

I thought the ZR1 booster was a smaller diameter tandem design. Might be tough to find one though. Scratch that, the ZR1 booster has 4 bolts, so not a bolt-on.
Forum: C4 Tech/Performance
03-01-2024, 07:02 PM
Replies: 7
Views: 332
Posted By tequilaboy

You must use the 10k resistor and must send the...

You must use the 10k resistor and must send the Mode 1 request message: 0x80 0x56 0x01 0x29 (which is setup in the adx file or definition file). Suggest you give DataCat a try first ( since it is a...
Forum: C4 Tech/Performance
02-24-2024, 02:40 PM
Replies: 44
Views: 1,046
Posted By tequilaboy

The extra 50 rpm should help the idle a bit (550...

The extra 50 rpm should help the idle a bit (550 rpm in gear), but I think they also reduced the tps% threshold for entry into PID control from 2.34% to 1.17% (at 0568) making it less likely to enter...
Forum: C4 Tech/Performance
02-24-2024, 01:55 AM
Replies: 44
Views: 1,046
Posted By tequilaboy

I attached a copy of the bin (above). Can't...

I attached a copy of the bin (above). Can't guarantee that it is authentic, but at least it has the correct prom id and the changes seem to fit the story.

Additional speculative info:

0000 and...
Forum: C4 Tech/Performance
02-23-2024, 10:01 PM
Replies: 44
Views: 1,046
Posted By tequilaboy

Comparing HLH 2292 with HLH 3200, only 37 bytes...

Comparing HLH 2292 with HLH 3200, only 37 bytes were changed (of which 32 appear to be functional changes).

Summary of changes

TCC lock/unlock speed increased (4 bytes)
Various Delta TPS AE...
Forum: C4 Tech/Performance
02-23-2024, 07:47 PM
Replies: 5
Views: 259
Posted By tequilaboy

ALDLdroid works reasonably well for logging data...

ALDLdroid works reasonably well for logging data but it does have some issues. I would say it serves as a supplement to TunerPro/TunerProRT rather than a replacement or alternative. Users without...
Forum: C4 Tech/Performance
02-16-2024, 02:27 PM
Replies: 8
Views: 337
Posted By tequilaboy

There's this: ...

There's this: https://www.corvetteforum.com/forums/c4-tech-performance/3539781-big-doggie-mod-done-what-i-learned.html
Forum: C4 Tech/Performance
02-15-2024, 04:49 AM
Replies: 2
Views: 426
Posted By tequilaboy

'spite the sneers and side-way looks she's...

'spite the sneers and side-way looks
she's still a beauty in my book
not a f'rrari or jag-u-ar
not too bad for an american car
Forum: C4 Tech/Performance
02-15-2024, 03:48 AM
Replies: 2
Views: 426
Posted By tequilaboy

We're almost worthy of a country song: here goes

Cylinder heads in the kitchen
Mean dogs at the door
Sixteen inch Hoosiers sitting there on the floor
Its winter in Michigan (Go Blue)

What shall we do

A few thousandths off just might fit...
Showing results 1 to 25 of 488
 
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