Discussion
Was wondering what the pluses of this is with a Mafless tune. Talking to Col about it and i'm being asked all sorts of questions i dont know the answers to. So help please
Would it be worth while for me??
The other thing is does anyone have any links to pictures of OTRCAI. I've been googling it for ages and cant find any. I just keep getting links to the LS1 forum.
TIA
Mel
Would it be worth while for me??
The other thing is does anyone have any links to pictures of OTRCAI. I've been googling it for ages and cant find any. I just keep getting links to the LS1 forum.
TIA
Mel
RICHARDdonk r8 said:
Should have looked under my bonnet at the SRR day....................
running with the maf , hairdryer to follow....
That's a nice looking bit of kit that, do you mind me asking how much? Does it make a loud induction noise or still quiet?running with the maf , hairdryer to follow....
Edited by donk r8 on Friday 27th November 21:00
.. depends mate.
Its all about airflow, temperature, pressure and tune
If your intake, engine, exhaust or tune are not 100% then there will be power left on the table.
If you look at Oz DynoDynamics results for LS1 cars with full exhaust, intake and tune they are getting from around 305rwhp to 320rwhp (230-240rwkw) maybe a tad more.
So you arnt far off that now. How much will you make with an otrcai and mafless tune?
Not sure. I recon you "should" pick up some power, but how much remains to be seen. If you are chasing power, then you probably need to start looking elsewhere. To be honest there wont be much more in it. Whats another 10-15bhp worth? Roller rockers, underdrive pulley etc will help at a cost.
IMO better to get a 383 stroker engine and heads next and sell off the LS1. 450rwhp or so with a mild-ish cam, consistent all year round.
Though your wallet will feel more pleased if you just drive it as is. Stig is now a convert of the tuned stock vehicle and there is a lot to be said of that.
Its all about airflow, temperature, pressure and tune
If your intake, engine, exhaust or tune are not 100% then there will be power left on the table.
If you look at Oz DynoDynamics results for LS1 cars with full exhaust, intake and tune they are getting from around 305rwhp to 320rwhp (230-240rwkw) maybe a tad more.
So you arnt far off that now. How much will you make with an otrcai and mafless tune?
Not sure. I recon you "should" pick up some power, but how much remains to be seen. If you are chasing power, then you probably need to start looking elsewhere. To be honest there wont be much more in it. Whats another 10-15bhp worth? Roller rockers, underdrive pulley etc will help at a cost.
IMO better to get a 383 stroker engine and heads next and sell off the LS1. 450rwhp or so with a mild-ish cam, consistent all year round.
Though your wallet will feel more pleased if you just drive it as is. Stig is now a convert of the tuned stock vehicle and there is a lot to be said of that.
Bonnie and Clyde said:
I agree, it looks great The one thing putting me off going mafless is the need to tune it myself through EFI Live as i'm not good with clever things. Rich i dont think you could teach me how to do it in a year
Donk's is not mafless. You can retain the maf if you want. Though for best driveability I would suggest trying without it. Also Id be surprised/shocked if anyone could not do a decent mafless tune so you shouldnt need to do it yourself. The one thing putting me off going mafless is the need to tune it myself through EFI Live as i'm not good with clever things. Rich i dont think you could teach me how to do it in a year Bonnie and Clyde said:
I agree, it looks great The one thing putting me off going mafless is the need to tune it myself through EFI Live as i'm not good with clever things. Rich i dont think you could teach me how to do it in a year
I may have not understood what you mean, but, does it not say maf not mafless? The one thing putting me off going mafless is the need to tune it myself through EFI Live as i'm not good with clever things. Rich i dont think you could teach me how to do it in a year Mel, for things like drag days an OTRCAI will be less efficient than a well placed CAI due to the initial heat soak DUE TO THE FACT ITS ON TOP OF THE RADIATOR.
Once running things balance out, correct me if I`m wrong but Monkfish saw exactly the same numbers with both setups on a ` moderately tuned ` car. If you want really cold air, go through the inner wing under the std airfilter box and install a cone filter there
Once running things balance out, correct me if I`m wrong but Monkfish saw exactly the same numbers with both setups on a ` moderately tuned ` car. If you want really cold air, go through the inner wing under the std airfilter box and install a cone filter there
wormus said:
crisisjez said:
If you want really cold air, go through the inner wing under the std airfilter box and install a cone filter there
I thought about this but was told if the filter is too low or exposed it can suck up water when you go through a puddle with disasterous results?
I guess the same could be is true of an OTRCAI in a thunderstorm
Proper shielding will solve daily driving, as for big puddles and Fords, well I guess its know your limits time there
If mine goes pop through water ingestion I`ll eat my words though
Monkfish1 said:
I've been running the Wortec on my Maloo ever since I fitted the cam, headers etc. Before the dyno day last week, I fitted the Orssom intake.
I can confirm that with regards power, manifold pressure etc there is NO difference. Dyno plot confirmed this to be the case. The only measurable difference between the two was that the Orssom gained heat quicker when stationary and lost it quicker too when moving again. Either will offer a useful gain over stock.
Here's what Roger said on another forum.I can confirm that with regards power, manifold pressure etc there is NO difference. Dyno plot confirmed this to be the case. The only measurable difference between the two was that the Orssom gained heat quicker when stationary and lost it quicker too when moving again. Either will offer a useful gain over stock.
The best way to sort it out would be a back to back test of intakes.
(ie) Chuck a few sets in the boot and play about on the dyno.
Personally I prefer the logic of a 1' length of intake tract from outside to throttle compared to one in the standard position with its bends and turns.
Failing that dyno days are useful, though I dont think anyone was running otrcai's this time, except Roger himself.
(ie) Chuck a few sets in the boot and play about on the dyno.
Personally I prefer the logic of a 1' length of intake tract from outside to throttle compared to one in the standard position with its bends and turns.
Failing that dyno days are useful, though I dont think anyone was running otrcai's this time, except Roger himself.
I think i'll stay as i am Gassing Station | HSV & Monaro | Top of Page | What's New | My Stuff