LS3 top end swap

[mikeyb1987]

mfp4073 said:

I thought I knew about cars...having read this post a couple of times I now know I'm thick!!!!
thanks for boosting my automotive confidence.

regards John

I know what you mean!
My thread may have been slightly hijacked, but it's great to see some technical info on the forum

[mfp4073]

mikeyb1987 said:

I know what you mean!
My thread may have been slightly hijacked, but it's great to see some technical info on the forum

I have to agree the tech stuff is good,even if it makes my head explode!

[SturdyHSV]

MyM8V8 said:

Better than E40 AutoVE? You wrote the manual???

Have you read the CALC.VET and CALC.MAFT methods? Looks interesting, going to be giving VET a go, just to see how it goes, then probably ditch the MAF anyway

Might as well whilst I have time

[ringram]

Good MAF vs MAFLESS comparo

http://www.pcmforless.com/index.php?option=com_con...

[Gelf VXR]

SturdyHSV said:

Have you read the CALC.VET and CALC.MAFT methods? Looks interesting, going to be giving VET a go, just to see how it goes, then probably ditch the MAF anyway

Might as well whilst I have time

Yes I followed the thread, for the LS1, not sure it works for the E40 as it has three airflow pids, MAF, DYNAIR and AIRPERSEC.

I started an earlier thread as it happens for a simultaneous log method for E40. In my method I correct MAF and DYNAIR from AIRPERSEC.


http://forum.efilive.com/showthread.php?13833-CALC...

[SturdyHSV]

Gelf VXR said:

Yes I followed the thread, for the LS1, not sure it works for the E40 as it has three airflow pids, MAF, DYNAIR and AIRPERSEC.

I started an earlier thread as it happens for a simultaneous log method for E40. In my method I correct MAF and DYNAIR from AIRPERSEC.


http://forum.efilive.com/showthread.php?13833-CALC...

Took a while to read through all that, glad there are some people looking at the e40 at least!

It does make me a lot more inclined to just ditch the MAF though!

As my WB isn't fitted yet, I hadn't got to the validating PIDs etc. stage, so the penny hadn't dropped that of course the E40 won't have half the PIDs needed...

I'll re read your method a few times to ensure I understand it, all the PID names can get confusing if read all at once!

Let me know if theres anything I can do / log to help, stock heads/cam ls2 with fast intake/headers

[MyM8V8]

SturdyHSV said:

Took a while to read through all that, glad there are some people looking at the e40 at least!

It does make me a lot more inclined to just ditch the MAF though!

As my WB isn't fitted yet, I hadn't got to the validating PIDs etc. stage, so the penny hadn't dropped that of course the E40 won't have half the PIDs needed...

I'll re read your method a few times to ensure I understand it, all the PID names can get confusing if read all at once!

Let me know if theres anything I can do / log to help, stock heads/cam ls2 with fast intake/headers

You can't log anything without validating the PIDs.

[mikeyb1987]

Quick update:
The cam/heads have been installed in the car and it was dropped off for mapping yesterday.
I have to confess to letting out a small giggle when I fired it up! The idle was a tad low, but it did give it some proper lope. It also rocked the car on idle a hell of a lot more than standard! Unfortunately, I fear the mapping will 'tidy up' the idle.
I eagerly await the results

[wav8]

Good luck Mikey waiting to hear it

[jameshsv]

wav8 said:

Good luck Mikey waiting to hear it

+1

[MyM8V8]

mikeyb1987 said:

Quick update:
The cam/heads have been installed in the car and it was dropped off for mapping yesterday.
I have to confess to letting out a small giggle when I fired it up! The idle was a tad low, but it did give it some proper lope. It also rocked the car on idle a hell of a lot more than standard! Unfortunately, I fear the mapping will 'tidy up' the idle.
I eagerly await the results

Who is mapping it for you?

Shame you don't have efilive. There is a feature on it that lets you command various stuff direct from your laptop. Idle being one of them. You can they try various idle speeds, its great fun.

Problem with idle is getting it to do that nicely with all the variables down that end, to come off it ok.

[ringram]

John Sleath mapping it IIRC.

Be interesting to see how he gets on with all the idle transitions.

[mikeyb1987]

Yep, Ringram is correct- John Sleath is mapping it.
He has the car for a week, so hopefully any mapping issues will be sorted.

[paul450]

hope the mapping session goes well mate

cant wait to hear her at the next meet

[raving]

Johns a top bloke

[mikeyb1987]

Another quick update.....

404rwhp and 450lb/ft of torque (at the fly, from 4,400 to 5,350rpm) Will upload graphs shortly. To say I'm over the moon is an understatement!

Just to clarify, that is 80ish rwhp from cam, heads and a tune

It made peak power at the limit (6,600), and with the cam specs, I know there is more on the table. What can the rods/bottom end take? The car has done 94k miles, so I'm tempted to err on the side of caution and leave it as it is. It is tempting, though, to up the limit and see what it will do up to 7k rpm...

[jonnM]

Great result Is that a 25% increase in power? You're going to notice that

[mikeyb1987]

[mikeyb1987]

jonnM said:

Great result Is that a 25% increase in power? You're going to notice that

Hopefully

[paul450]

welldone mate
nice increase and power all the way to the redline