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went on the rollers today #214709
15/10/2006 00:12
15/10/2006 00:12

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Hey. Decided to get my boost controller set up on the rollers today. Got the graph but its a bit pants.

Basically i got 278bhp at the wheels. which is about 320 at the fly.

It was running rich around 10-11. Was 1.4 midrange then, 1.1 towards redline. Enough fuel all the time.

Inlet temps were a bit high at 50c but the guy did mention it was hot in the place.

Full boost at 3000rpm. No flat points i dont think.

Advice needed :

Should i get Graham L to take some of the fuel out of the chip across the range to make it run less rich?

Should i consider replacing the intercooler with one in better condition?

Any other options?

Ross

Re: went on the rollers today #214710
15/10/2006 00:27
15/10/2006 00:27

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Which chip was that with?

Re: went on the rollers today #214711
15/10/2006 00:29
15/10/2006 00:29

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Gtech 2.

Ross

Re: went on the rollers today #214712
15/10/2006 01:36
15/10/2006 01:36

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what mods u got again? 320 at the fly sounds good ... much more than that an you're into forged internals etc.. Suba got 340 with a Unichip, so I wouldn't be complaining with 320 and a plug n play chip.

Re: went on the rollers today #214713
15/10/2006 01:39
15/10/2006 01:39

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I think my best option now, would be to ask Graham to make a Gtech 1 chip with ignition advance.

That way it will have reduced fueling and still have the ignition advance.

Think that will work?

Ross

Re: went on the rollers today #214714
15/10/2006 01:44
15/10/2006 01:44

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the problem is that he'll have to guess at the parameters ... u can't beat a custom map. I think Perfect Touch can do on the fly mapping, which might be a little bit cheaper than a Unichip. I'm in the same boat as u.

Re: went on the rollers today #214715
15/10/2006 01:49
15/10/2006 01:49

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I dont think its worth it. Thats my opinion. I reckon that if i check my fueling enough, with minor adjustments to the Gtech chips i reckon i could crack it suffieciently. The fact is that several people on the forum found little difference with the unichip from the Gtech chip. So it cant be that far out.

Ross

Re: went on the rollers today #214716
15/10/2006 01:52
15/10/2006 01:52

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i know what u mean. i'm back with the standard chip now and it's fuelling ok ... just missing the ignition advance of the gtec

Re: went on the rollers today #214717
15/10/2006 01:59
15/10/2006 01:59

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Yeh, thats why im gonna get the mixture of Gtech 1 and 2 hopefully.

Ross

Re: went on the rollers today #214718
15/10/2006 02:01
15/10/2006 02:01

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if graham will do u one, i'll have one too.

Re: went on the rollers today #214719
15/10/2006 02:02
15/10/2006 02:02
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North wales
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A bag of chips then, if you will.



Coopless!
Re: went on the rollers today #214720
15/10/2006 02:05
15/10/2006 02:05
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The trouble is that you don't need ignition advance or fuelling cut right across the rev range - you need it in specific areas only

There's only two ways to do this - Unichip or custom map

There's a correct statement above - with fairly well-modded cars, a Unichip often makes very little difference to peak power. However, it does ensure correct running acorss the entire rev range AND it quite often makes quite a bit of difference to off-boost performance and responsiveness.

There's a Unichip for sale in the Parts For Sale section, and there's also a chance that my Unichp might be available if I decide to go for a custom map later this month


[Linked Image]
Re: went on the rollers today #214721
15/10/2006 02:05
15/10/2006 02:05

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i've got a bag of chips in my ashtray and i dunno which one is which

Re: went on the rollers today #214722
15/10/2006 02:12
15/10/2006 02:12

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Quote:

The trouble is that you don't need ignition advance or fuelling cut right across the rev range - you need it in specific areas only

There's only two ways to do this - Unichip or custom map

There's a correct statement above - with fairly well-modded cars, a Unichip often makes very little difference to peak power. However, it does ensure correct running acorss the entire rev range AND it quite often makes quite a bit of difference to off-boost performance and responsiveness.

There's a Unichip for sale in the Parts For Sale section, and there's also a chance that my Unichp might be available if I decide to go for a custom map later this month




good point, look at suba's unichip setup. one at low boost with loads of ignition advance low down to improve "driveability" and the second map at high boost (less ignition advance) and loads of top end power.

Re: went on the rollers today #214723
15/10/2006 03:33
15/10/2006 03:33

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Well, i think with the proper misture i could have NEAR unichip performance without the price tag!

Ross

Re: went on the rollers today #214724
15/10/2006 05:00
15/10/2006 05:00
Joined: Dec 2005
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Drakelow
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Ross remember what I've said about flowrates. 320bhp is good for your set up, and as long as you don't mess with boost you'll have a relaible motor that will beat most things anyway!!

Jamie


She's alive!
Re: went on the rollers today #214725
15/10/2006 06:43
15/10/2006 06:43

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good luck ross with that power you need to have good fueling.
ask yer self this question how many unichip cars have lost a pot?
hope graham can sort a chip for you

Kev

Re: went on the rollers today #214726
15/10/2006 15:32
15/10/2006 15:32

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Quote:

good look ross with that power you need to have good fueling.
ask yer self this question how many unichip cars have lost a pot?
hope graham can sort a chip for you

Kev




Dunno how many....? I'm scheduled to go back on the rollers in one weeks time. So i have 4 choices.....

1. do nuthing and run it again.
2. run higher boost on this setup (1.5 midrange and 1.2 redline.
3. get a gtech 1 chip.
4. Ask graham to make a mixture between the Gtech1 fueling and the Gtech 2 ignition advance.

I defintely was running too much fuel, but the guy said it was a good thing to prevent detonation..... but i think it was in the 10's. I was sure the high 11's low 12's was a better option.

Ross

Re: went on the rollers today #214727
15/10/2006 17:46
15/10/2006 17:46

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A Gtec2 with Gtec1 base fuelling map wouldn't work, would be even richer than the standard Gtec2.

Might be possible to back off the base fuelling map of a Gtec2 though, I'll look into it...

Re: went on the rollers today #214728
15/10/2006 17:49
15/10/2006 17:49

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Brilliant dude. Just a little bit tho, cause dont want the opposite problem. Check your pm's.

Ross

Re: went on the rollers today #214729
15/10/2006 19:00
15/10/2006 19:00
Joined: Dec 2005
Posts: 12,294
Sandhurst
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Quote:

Well, i think with the proper misture i could have NEAR unichip performance without the price tag!

Ross




Ross

Simple bit of advice, you have spent so long without the car, dont scrimp and save on the last important bit. Do it once, do it right, get a custom map instead of relying on a simple P'n'P chip


Originally Posted by Jonny - After being taken out at Spa
Your car is Usain Bolt with wellies
Re: went on the rollers today #214730
15/10/2006 19:22
15/10/2006 19:22
Joined: Dec 2005
Posts: 5,405
Castle Combe
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These are good results Ross, you are running some very strong useable power! Do you have your graphs as it will help to see the torque curve?

I don't think you should be dissapointed with 320bhp as you may find on another day you get 330bhp with just an extra 5lbs/ft at redline due temps, fueling etc. The key here is that your mods have achieved your goal and with a little more tweaking you'll be exactly where you want to be. I agree with the comments that you shouldn't scrimp on getting the fueling correct, that said, it is possible that a tweaked G-Tec could be perfect for your setup (it was on mine initially) so see what Graham can do for you... as long as you don't do any further mods!


[Linked Image]

Re: went on the rollers today #214731
15/10/2006 22:27
15/10/2006 22:27

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Not planning on any other mods at the moment.

See what grahaml comes back with at the moment.

Ross

Re: went on the rollers today #214732
15/10/2006 22:44
15/10/2006 22:44

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http://i19.photobucket.com/albums/b176/h2ypr/rrgraph.jpg

Here is my graph. Not as detailed as the one i had last time.

Ross

Re: went on the rollers today #214733
16/10/2006 03:13
16/10/2006 03:13
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Castle Combe
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OK I have extrapolated the torque and bhp curves from your graph and converted to a flywheel standard (17% loss) so that everyone has a better understanding of what it all means especially in comparison to other coupés

h2ypr's graph...

Well that is some seriously impressive low down torque there Ross! Short of the hybrid turbos or nitrous, nothing comes even close to that spool up and torque delivery. The 28R coupled with headwork certainly appears to be doing the trick


[Linked Image]

Re: went on the rollers today #214734
16/10/2006 03:25
16/10/2006 03:25

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Cool. Maybe im just being fussy!!

You can thank Barbz for his advice and the engine he sent me for all the power i have!!! He is the man and i would highly recommend him to anyone wanting more power.

I still wanna try it with less fueling next week. Need to check with Graham L if its possible.

Ross

Re: went on the rollers today #214735
16/10/2006 03:33
16/10/2006 03:33

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Good job there!

Impressive torque curve , another one or Barbz masterpieces

You could try a bit less fuelling, but it might be counter productive,.. just have to wait and see!

good luck!

joe

Re: went on the rollers today #214736
16/10/2006 03:36
16/10/2006 03:36

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Thanks dude. At the end of the day im missing 2 mods.

Cams and chargecooling.

Both of which before christmas are outwith my budget.

So i can try the gtech1 and check the graph. If worse i can just replace the gtech 2 back in it.

Ross

Re: went on the rollers today #214737
16/10/2006 11:33
16/10/2006 11:33

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Quote:

OK I have extrapolated the torque and bhp curves from your graph and converted to a flywheel standard (17% loss) so that everyone has a better understanding of what it all means especially in comparison to other coupés

h2ypr's graph...

Well that is some seriously impressive low down torque there Ross! Short of the hybrid turbos or nitrous, nothing comes even close to that spool up and torque delivery. The 28R coupled with headwork certainly appears to be doing the trick




Surely that's like the ideal mix of low-end torque and a nice sustainable power rise to near the redline ? Ross - leave it the fccuk alone and actually drive it before something on it blows up again !!

Re: went on the rollers today #214738
16/10/2006 13:11
16/10/2006 13:11

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Lol. I'm booked for the rollers on sunday anyways, so i might aswell switch it to see if i can get something a bit more.

Ross

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