Project Blown SS Refresh

[IJ.]

I'd like to change my guess

[edelbrock1]

I think Franga has blown us off to go lay some mad skids!!

[whitels1ss]

I'd like to change my guess

Come on IJ......

He must have phoned you & told you the numbers.

Do tell!

[FrangaFry]

Come on IJ......

He must have phoned you & told you the numbers.

Do tell!

Howdy folks, only just got home after doing the car shuttle thing.............. Port Melbourne to Frankston (swap cars), Frankston to Belgrave (drove the newly tuned wags home, left the cx8 there), Belgrave to Frankston (grab the wife's truck - baby seat is in it) and Frankston to Belgrave (throw in a grumpy wife, hungry kid and baby that hasn't slept enough today ............... you get the picture) .... LOL

So apologise for the delay............

I'm gunna admit, I had just a bit of an "awwwwwwwwww" moment this arvo .............. 324rwkw, BUT, 1183nm ............... haven't really had a chance to 'enjoy it' yet as I've only driven it home from APS and I was a little 'careful'...

I did give it a bit of a go on the Frankston/Dandy back stretch just out of Carrum downs coming out of the round about and had a nice 'Faaaaaaaaaarrrrrrrrrrrk me!!!' moment kicking down from 3rd to 2nd (popped it back to 3rd before nailing it) and ............. ............... she just WENT ............... was VERY pleasant (hindsight, could have been a bye bye license moment ............ Shhhhhhhh).

First impression ........ after warming her up 'properly', started to 'squeeeeeeeeze' the go pedal ever so (I thought) gently and for a bit, kept thinking, "whats wrong with the bloody accelerator pedal" (don't laugh, it's been a while ok ........) "it's getting really hard to press it down ..................." Yeah Yeah, I'm not the sharpest tool in the shed, but I do get there... yes, traction control was telling me that 1183nm is 'allot'

Frank assured me on the phone that she drives like factory (very nice manners) but gets up and goes when asked ............. from what I noticed tonight - he's VERY much on the money there.

It's gunna take me a day or so to get my head around it all I rek'n, as she's a totally different beast now ........... power delivery seems very different and very linear and I now know what a tranny with a shift kit actually does (Oh, and guess what, pressing the 'power' button actually bloody does something now ...............); Seriously, Chalk and Cheese!!

So to sum up, now, 324rwkw/1183nm DOES feel better than the 350rwkw/715nm that she was ........ i'm VERY bloody happy with it and looking forward to the drive into work tomorrow to get a better feel ...........

Frank and IJ did also point out that she is quite 'restricted' with the current headers/cats/intake and a change would see me somewhere around 380rwkw - but at this point in time, that is a tale for another day (and would require another change ....... but I love the wife I currently have).

Is Franga happy?

k'nOath!

Thanks Ian, and thanks Frank.......

[IJ.]

For my part you're very welcome Carlton, it was a pleasure! Looking at the dyno graph linear is a perfect description, as I said on the phone today it would all come down to the bum dyno after you had driven it, the way it was I highly doubt it ever made the quoted figure.... Am still amazed it didn't Chernobyl...

[Wonky]

So to sum up, now, 324rwkw/1183nm DOES feel better than the 350rwkw/715nm that she was ........

Please let me preface the following by saying anybody who has read my posts over all the years knows that I always try to be helpful, honest and impartial. There is no element of shop bashing/favourtism in what I'm trying to point out below and in fact the last thing I want to do here is start a shitfight.

My comments are also absolutely no reflection on Ian, who I've met and having read many of his posts believe his build would have been to exemplary standards, nor Luis who I consider a friend and great tuner.

It is my understanding however that the torque figure being quoted is being misinterpreted, as in fact should be evident by such a huge jump when power is actually lower! My understanding is that power and torque are interrelated, so such a big increase in one when the other decreases should I suspect have had people thinking. Unless of course I am way off the mark.........

Luis and I had a conversation on FB probably 18 months ago when someone I know was all c0ck a hoop at having a torque figure on APS' dyno with his cammed LS1 of around 900nm!! That absolutely blew my mind when it only had under 600nm on another dyno, admittedly IIRC pre cam. However, nobody would expect a middle sized cam to add 50% more torque!!

If my memory serves me correctly (I CBF going back through my Messenger history to find it unless someone "needs proof") the torque figure APS quote is what I think Luis called a "derived torque" figure and the actual normally quoted figure is around 2/3 of that, or maybe it was 30% lower????

Bottom line, if I'm not mistaken (could be of course) is that I suspect we are comparing apples with oranges. Hopefully Luis or someone who knows more about this stuff than me can put things straight, or I may have to go digging back through my Messenger history.................

[Micks]

Think the numbers are a bit skewed, though the original ones were too, but don't let us get caught up in numbers!
At least now you have the confidence what was done to your ride has been evidenced & as you said the performance now is Chalk and Cheese!!
Great job to all involved.

[IJ.]

Apples and Oranges for sure, unless its the same dyno and operator under similar conditions you can't directly compare numbers... It will be interesting to see what Carlton thinks of the power once he's driven it at full noise, Luis did comment on how restrictive the exhaust sounded on the dyno, I suspect the Cats are dead/dying from being ran lean in the past...

[amckiwi]

Not an expert at reading dyno chart but my ute made 800Nm I think this supports the wonky view in post # 306
2/3rds of this sounds no where near as good lol.
The "bum" dyno finds me on average a gear higher than before the tune which still brings a massive smile to my face when I drive it which is really the most important thing.

[Woodchukka]

Good to hear all IJ's work came to a good result Frangafry. As for the numbers it has been covered here many times a dyno is a tuning tool and there are so many factors affect the end result. The big gain here is Frangafry can flog the wagon without fear of it falling apart (the engine and box anyhow) which I believe reliability was a big part of the reason for the refresh otherwise they'd have been no need for all the strength IJ added (correct me if I am wrong boys).

It would be good to see the dyno printouts of both old and new runs to see how the power and torque is being delivered but again there will be differences. Also I recall IJ said there was a small reduction in compression plus the potential exhaust issues so all in all there is room for increases in the future where before it was closer to the edge of reliability. If Frangafry had the old setup down the 1/4 then another run once the new setup settles in would offer a truer representation of what is going on.

In the mean time Frangafry screw the numbers just don't strain ya jaw with the grin on your face.

[XUV]

Howdy folks,
I'm gunna admit, I had just a bit of an "awwwwwwwwww" moment this arvo .............. 324rwkw, BUT, 1183nm ............... haven't really had a chance to 'enjoy it' yet as I've only driven it home from APS and I was a little 'careful'...

I did give it a bit of a go on the Frankston/Dandy back stretch just out of Carrum downs coming out of the round about and had a nice 'Faaaaaaaaaarrrrrrrrrrrk me!!!' moment kicking down from 3rd to 2nd (popped it back to 3rd before nailing it) and ............. ............... she just WENT ............... was VERY pleasant (hindsight, could have been a bye bye license moment ............ Shhhhhhhh).
.....

what diff ratio you running ?

[whitels1ss]

Has the boost dropped with the new lower compression pistons?
I assume it would have dropped because I don't remember reading anything about a pulley upgrade for more boost
& nothing else changed.

What was it running before & now?

Sounds like a very strong, reliable setup?

[IJ.]

Good to hear all IJ's work came to a good result Frangafry. As for the numbers it has been covered here many times a dyno is a tuning tool and there are so many factors affect the end result. The big gain here is Frangafry can flog the wagon without fear of it falling apart (the engine and box anyhow) which I believe reliability was a big part of the reason for the refresh otherwise they'd have been no need for all the strength IJ added (correct me if I am wrong boys).

It would be good to see the dyno printouts of both old and new runs to see how the power and torque is being delivered but again there will be differences. Also I recall IJ said there was a small reduction in compression plus the potential exhaust issues so all in all there is room for increases in the future where before it was closer to the edge of reliability. If Frangafry had the old setup down the 1/4 then another run once the new setup settles in would offer a truer representation of what is going on.

In the mean time Frangafry screw the numbers just don't strain ya jaw with the grin on your face.

The "Brief" I gave Luis was it had to have nice street manners above all else, we kept it to 6500 rpm max it will easily turn 7500 not sure if it'll make more power p there due to the breathing restriction, I asked Luis how it drives, his reply "Mint I want it"

I take that as a huge + given he's a Ford guy and gets to drive untold numbers of "good" cars!

what diff ratio you running ?

3.46:1

Has the boost dropped with the new lower compression pistons?
I assume it would have dropped because I don't remember reading anything about a pulley upgrade for more boost
& nothing else changed.

What was it running before & now?

Sounds like a very strong, reliable setup?

As far as I know 12psi, Dynamic Comp will be down due to the drop in Comp to 9.3:1, Didn't see a boost trace from this round of Dyno tuning sorry.

<edit> It was making 10 psi this time.

[IJ.]

Ok my mistake it only ever made 10 psi...
(Alzheimer's kicked in yo)

[whitels1ss]

Sounds perfect for a great daily drive.