Congrats to Alski and Damo

[Damo]

Well I've now got the power (although I wanna do another run to make sure it wasnt a fuke )

But how do I now improve the torque? The next engine mods (after coilovers) where going to be a ful miltek system, but I'm sure I read somewhere a 4-2-1 manifold is better for mid range, where a 4-1 is better for top end.

Ideally I want to increase the torque and reduce when it peaks to

[Paul@1320]

Though we're comparing two differnt engines / ecu's here but Big Shows with the Janspeed Manifold in comparison to Alski's makes more trq and hp up to about 3500-4000 then they join togeather till redline.

So you would say that the 4-1 is works well below 4000 (10 ft lb) off course we have to remember that Big Shows ecu supposely has a more advance timing map than Alski's.

So I'm afraid the only way to see if your car works better with a 4-2-1 or a 4-1 is to come up for the day and try them, we do have a used 4-2-1 and the ebay 4-1 in stock you can try.

We've seen every ex manifold now apart from the OBX and there is only one choice in our eyes.

[Lucky Dave]

Well done guys, Its just goes to show there is no such thing as a standard car!

There are so many things that could be making the numbers.

[alski]

Quote: Originally Posted by Damo (original)

quite low for me and at high rpm's. 178.1 lbft at 6646rpm

187.6 lbft at 5909

, so do i chase the magic 250, or will an extra 13lbs of torque be better for me,

the only thing stopping me fitting the janspeed manifold is there excess noise at 70ish mph?

so any one with a milly catback as well going on the top gear run? so i can have a listen

[Damo]

Quote: Originally Posted by 1320autos (original)

Though we're comparing two differnt engines / ecu's here but Big Shows with the Janspeed Manifold in comparison to Alski's makes more trq and hp up to about 3500-4000 then they join togeather till redline.

So you would say that the 4-1 is works well below 4000 (10 ft lb) off course we have to remember that Big Shows ecu supposely has a more advance timing map than Alski's.

So I'm afraid the only way to see if your car works better with a 4-2-1 or a 4-1 is to come up for the day and try them, we do have a used 4-2-1 and the ebay 4-1 in stock you can try.

We've seen every ex manifold now apart from the OBX and there is only one choice in our eyes.

It'll be a while before I can afford any more engine parts, focusing on sorting out the suspension (and rattles mad: ). Only Suspension mod left to do is the Coilovers and that's going to be just as expensive.

[Damo]

Quote: Originally Posted by alski (original)

187.6 lbft at 5909

, so do i chase the magic 250, or will an extra 13lbs of torque be better for me,

the only thing stopping me fitting the janspeed manifold is there excess noise at 70ish mph?

so any one with a milly catback as well going on the top gear run? so i can have a listen

Graham (GRS Motorsport) has a ful Miltek System (just dont tell his wife about the Mani ).

Its his and Dunc's car that made me want ta full Miltek cos I just love the sound.

Personally want more torque as opposed to power now, looking at the torque for my engine you'd think it was a VTEC unit

Just out of interest would increasing the rev imiter increasr the power as it seemed to be still going up on the graph

Oh and lastly, can anyone tell me what the figures 1320 sent me mean Haven't a clue

[Damo]

Attached Excel Workbook to above post with both runs data.

[beatbox]

Hi
So can we assume a facelift 05 cooper s with the teflon blower and lighter crankshaft damper(170 bhp) can achive power figures of around 235-240 bhp with just a 17% pulley,good intake like Alta or Gtt,GRS intercooler and miltek cat back along with new iridium plugs on standard map and injectors??

Thats about 40-50 bhp more than a JCW for abour 25% the cost !!!!

Also can we confirm that a good manifold like Janspeed/ gtt will help with torque(peak much lower in rev range) more than top end power ?

Would it be better to spend the £500 (if on a budget) used on the cat back system on a manifold instead and get the one ball exhaust mod which is very cheap and saves over 10kg in weight ??

[Paul@1320]

The spreadsheet is showing the following values at each rpm.

Ignition Timing; your ignition timing

Boost pressure; is in KPA 100KPA is 14.5 psi so if you insert column in row G and add this formula in the formula bar =SUM(F7-100)*0.145 then you'll see that you made 16.92 psi @ 6753

Intake Air Temp; is what your map sensor is telling the ecu the temp is in your intake manifold usually after 50ish degrees the ecu will start pulling timing out.

[Paul@1320]

[quote=beatbox;3347018]Hi So can we assume QUOTE]

Through a misfortune off a friend when I was 19 we had just put a kent 234 cam in his Rover V8 in his Mk 1 Escort, ported and polished heads 16 new valves.

Before starting it up I said "have you checked the valve to piston clearance" ( I use to read a lot of mags) which he replied,"No I asked the company and they said it should be alright"

So you can guess where this is going 8 brand new bent valves later and 4 cracked pistons...............

Anyway when he wasn't there one night I sprayed Never assume anything +/- .095 on each wall off his workshop

So anyway a lot off people assume that if they bolt x y z on they'll get whatever bhp figure they have in mind, some are lucky some are not.

Always check your car before on a dyno and afterwards because you'll be surprised what you might find and not notice even if it has just been serviced at your local dealer

[Damo]

Quote: Originally Posted by 1320autos (original)

The spreadsheet is showing the following values at each rpm.

Ignition Timing; your ignition timing

Boost pressure; is in KPA 100KPA is 14.5 psi so if you insert column in row G and add this formula in the formula bar =SUM(F7-100)*0.145 then you'll see that you made 16.92 psi @ 6753

Intake Air Temp; is what your map sensor is telling the ecu the temp is in your intake manifold usually after 50ish degrees the ecu will start pulling timing out.

Cheers So I'm assuming the timing figures show everything is okay to? But then you say never assume anything

[MINI-Morgan]

-100? is that ambient Kpa at your workshop 100kpa?

Dont suppose you did any wideband logging?

I was expecting a little more advance on the ignition. Have you logged any preface lifts and seen higher?

[Paul@1320]

Most std headed will see this ssort of timing on a stock map, though when a good cylinder head goes on we see 28-30 at the top end, I would believe this more a result off the combustin chambers being smoothed off all its sharp edges and less chance of the engine detonating.

Until someone put a stock head with polished and smoothed chambers who knows for sure

[Rigsey]

Quote: Originally Posted by alski (original)

187.6 lbft at 5909

, so do i chase the magic 250, or will an extra 13lbs of torque be better for me,

the only thing stopping me fitting the janspeed manifold is there excess noise at 70ish mph?

so any one with a milly catback as well going on the top gear run? so i can have a listen

Its interesting how much difference the manifold makes to shifting the peak torque lower down the rpm curve; me 191.2 @ 4638rpm and Alski 187.6 @ 5909rpm

I know each car is different but thats some change....

[-G-]

Quote: Originally Posted by alski (original)

187.6 lbft at 5909

, so do i chase the magic 250, or will an extra 13lbs of torque be better for me,

the only thing stopping me fitting the janspeed manifold is there excess noise at 70ish mph?

so any one with a milly catback as well going on the top gear run? so i can have a listen

Ive got the Janspeed manifold and high-flow cat on mine at the moment along with a Milltek exhaust I bought from Luca and its bloody loud mate haha
In fact its so loud its coming off today and the JCW item is going back on!