Cameron Oliver

Wat is your tuning ?

THE 383 admiral

PCM computer re-tune. Using my wideband. Improving many tables.

Cameron Oliver

What is the best way to go if I install the 58 mm throttle body do I do a re program or do I also do injectors and reprogram

Cameron Oliver

Did you do your own programming to the Pcm threw the comp. also what's the best wide and setup out there I have a 95

C4vettrn

Larger TB and injectors will probably hurt performance unless your motor can use the extra air/fuel. To answer your question you would have someone burn you a new chip off the list of mods you have done, this will get you close. After that you would need to do some data logging to send your tuner, they will make adjustments form that point.
58 mm TB's are more typically used with more cubic inches, bigger heads, cam, long tubes, etc.

THE 383 admiral

As C4vvetrn< Just posted. The 58mm TB on a stock??? LT1 is not economical. "unless it was free" And honestly. Needs a PCM RE-tune. re-mapping the AFR. Yes. I have been programming for years now. Forced to learn. From many 3rd Gen f-body Builds. The 94 - 95 PCM is much easier. to tune. you can program straight from the OBD1 "ALDL" port. that actually looks like a OBD2 port. I have a stand alone PCM program harness & power supply to eliminate the crosstalk. Within the 94 - 95 PCM, CCM & related computers. Also on battery back-up. The downside with this system. step one. The program erases the flash memory. If ANY errors occur. It's all over. De-soldering Two AN- flash is now required. and re-flash. them with new individual start-up files.
If you installed power adding parts. requiring. larger injectors. Yes, your PCM would require a tune to match. Larger injectors.
It would take a fairly significant power HP increase needing larger injectors. What stage level is your LT1.
I use CATS> http://www.tunercat.com/
this is a one~ stop & shop. Handling. everything required. But it will take 1000's of practice tune's and research. for someone. starting at ground. Zero.
PS. I wish this wide band was available. when I purchased my auto meter.
http://www.innovatemotorsports.com/products/dlg1.php

Cameron Oliver

My lt1 is at stage zero just bought it i am a mechanic fyi just to say im not a full noob haha.

The previous owner did exhaust and air filter lid cut and i did the throttle body coolant bypass.
Im trying to make a game plan of the best and inexpensive way to gain around 40 to 50 hp .

I was thinking a new fuel pressure regualtor to lean out the fuel ratio and a Wideband gauge setup . Thoughts on throwing in a 52 mm throttle nody while doing that and then getting either a dyno tune or a re map .

Thoughts please and or any other route i should take

Cameron Oliver

http://www.ws6.com/mycar.htm

THE 383 admiral

The PCM tuning. from "ground zero"
If the link you provided. is your WS6. that is NOT stock!!!

I can validate. a 60HP gain with my full OBX LT's. H pipe back. LTCC coil conversion. and my tune. data master dyno shows 360HP. I select the range 2K - 5.9K So far. best trap speed 108.86 @ 13.1

Cameron Oliver

No thats not mine i just posted that for people looking for numbers and what do u mean obx lts and 2k - 5.9k and what is an ideal afr for an lt1 ?

Cameron Oliver

Oh headers and ur cat back

THE 383 admiral

Yes. I also modified my collector to 3" VS 2.225.
12.79 WOT~ AFR

Cameron Oliver

I select the range 2k-5.9k is that rmps for ur dyno run ?

Cameron Oliver

And u have stock throttle body ? Also u have a fuel pressure regulator i imagine if so what psi do you run yours at

THE 383 admiral

Yes. Sir. 2,000 - 5,900 RPM. I also increased my oe PCM rpm limit a few points. Data master is a logging utility. after you log a session. you enter your start & stop point. populate your cars info. weight, gears. Ect. in the dyno feature. and run. Or hide. LOL

Cameron Oliver

And remove the cats correct

THE 383 admiral

NO cats. For what it's worth. the LT1 cats. FLOW.
last year. With Manifolds & CATS 13.4 @ 105.81

Cameron Oliver

Do u use a fuel pressure regulator and wat transmission do u have ?

THE 383 admiral

for this stock engine LT1~ a fuel pressure bump. is NOT needed!! i do have a slight fuel gain. I do have a external. Performance high flow pump. decreasing the wire gauge. feeding the pump. OE~ 18g. If i recall = 12. Volts. VS 14g. Wire. now = 13. Volts

ZF6 speed. Stock clutch. 3:45~ Dana 44

Cameron Oliver

Do you know how to wire the second fan to run on 2nd speed while the other one is ? Keep it a little cooler

Or should I just buy the aux fan lower temp switch kit