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Discussion Starter · #1 ·
Hello comrades,

any1 got any idea wot to expect wiv regards to improved 0-60 wen i have my car remapped, new zorst and induction kit fitted by george at RSM, i assume others here have had this work done
(180 boy???). maybe u dont have exact figures, but guesses are welcome. i need to beat my mates integra type R (6.7 secs).:hammerhea :rockon: :lol: :guns: :D
 

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If you drove Georges car you'll know what to expect.
In saying that, George has his filter sat behind the rad and it does suffer from heat soak.

His new induction kit allows the filter to sit lower in the car, heat soak will not be a problem, the main difference will be the torque, this will significantly increase through-out the range and as a result the engine will carry the peak power much further than OE.

The last rolling road shoot-out mine and Georges ZS’s produced the highest torque and peak power of the day, this proved that better airflow coupled with the right mapping will work very well. On the road this is significantly different, the rolling road will only imitate a road speed of approximately 50mph, the real world figures will be slightly higher due to higher air flow.
The first thing you will notice is how the engine will like to rev compared to the OE set-up, you will be able to hit the limiter in 1st, 2nd, 3rd and 4th and 120mph will come up very quickly, 5th flat out is still to be done in my car but during a private test session on a track I managed a indicated 155mph and had to slow down due to,,,,,,,,, I know George has achieved this speed on many occasions (on the track).
In standard set-up I could hit the limiter in the first 4 gears but the car had stopped producing power well before this, I only managed a recorded 142mph and it took a long time to reach this speed.
Both me and George noticed the power comes in hard low down and is linear all the way to the limiter, the car will pull hard and then you will be reminded to change gear when the limiter kicks in, if the limiter was higher the car would defiantly pull it’s power above 7.5k unlike in OE set-up.
Over a short period the ECU will learn your driving characteristics and fully adjust so things only get better.

So in answer to your question?
0-60 will come down, I tried to time mine (on video) the best of the day was just a tad under 6 sec and the highest was 6.9 so the average will be some place between depending on ambient temps etc etc.

Strangely my MPG has increased, I put this down to the improved breathing, or I may be wrong and it could be the mileage on the engine, anyway, the car is very quick over standard and will take some beating on the real world race track.

Your set-up will be same as mine and Georges you will break the 200hp barrier.

TypeR shouldn’t be a problem anymore.

180 Boy
 

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As a first estimate of the improvement in your 0-60 time, we can assume that getting the power down will not be a problem (probably true in the dry) and that, to accelerate from 0-60, it is only necessary for the engine to produce a certain amount of energy (not true but probably a reasonable first-order approximation.) 30bhp extra over the standard 175 gives an increase of ~17%. If we take the 0-60 time of the stock car as 7 seconds - which most people reckon to be reasonable for the ZS once the engine has loosened up a bit - then that would suggest that an extra 30bhp may cut that to about 6 seconds (7/1.17) - which stacks up nicely with 180boy's observations.

HTH,

S.
 

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erm, no I don't think you are.

Sub 6 seconds would mean 5.? times to 60. I think Steve is saying sub 7 seconds, which would 6.? seconds to 60.

I'd guess 6.8 or 6.9

Or have I got it wrong too?
 

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Reading Steves post again...

7/1.17 =5.98 but this wouldn't take any drive train losses into account.

Losses on the ZS180 are about 20% so the improvement at the wheels wouldn't be 17% but more like 13.5%.

So lets do it again (using the acheived 7.1 to 60)...

7.1/1.135 = 6.3 sec's. Still sounds a bit hopeful, to me, but nearer the mark.
 

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TonyPal said:
7/1.17 =5.98 but this wouldn't take any drive train losses into account.
If you assume that drive-train losses are a constant percentage, then my maths still holds. However, as I pointed out, the assumption that one just needs to produce a certain number of Joules of energy (at the wheels) to accelerate the car to 60mph is just that; an assumption. Also, the other big assumption that I forgot to mention is that I assumed the 17% power increase to be true at all engine speeds used in the 0-60 run, not just at peak power (usually at a different engine speed). So, as I said, it is a first estimate only; I'm not saying that you will get a 6 second run with an extra 30bhp, merely that it may be around that figure if the assumptions made are reasonable.

S.
 

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180 boy said:

So in answer to your question?
0-60 will come down, I tried to time mine (on video) the best of the day was just a tad under 6 sec and the highest was 6.9 so the average will be some place between depending on ambient temps etc etc.
A tad under 6secs is 5.9 secs in my reckoning. :shake:

I realistic advance on the 7secs (not sure on this either TBH) for +30bhp is 0.2. Making it around 6.8 secs.
 

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LN

“So in answer to your question?
0-60 will come down, I tried to time mine (on video) the best of the day was just a tad under 6 sec and the highest was 6.9 so the average will be some place between depending on ambient temps etc etc.”


Your not usually this pedantic but I agree with you about the tad under 6 sec
You will also read in my post that I filmed this on my video and tried my best to find the average.
I believe a tuned ZS180 to my spec will do a sub 7 sec 0-60 in the dry and if you get it right maybe a bit lower.
I could have claimed a 5.9 but this was only one run and I’m allowing for inacuracy, I think I did about 20 odd on the day in question leaving plenty of time in between to allow for temperature of the oils to stabilise and not to long so to loose the heat in the tyres.
My ZS makes,,,, torque 240 to 285(Nm) or 175 to 210 (ft-lbs) that’s approximately 20% over standard.

180 Boy
 

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Ok Guys

I have one of the video clips of my 0-60 run (on a private test track of course)
I have no way of uploading the clip though?
If anyone can help out here you will be quite surprised at the results
You will need to discount the first 2 seconds as I was turning the wheel to straighten the car before the launch.
Yes it was a standing start not rolling.
You can see the timer under the shot and if you pause drag the pointer to 2 seconds the speedo will just start to record as I launch.
0-60 is pretty good and the 0-100 is quite nice.

180 Boy
 

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i did a few 0-60 runs at the donny show last year i think i saw jerry he took some pics and uploaded them in the gallery some of my times where 8.0secs 7.2 on the second attempt 7.1 and 8.4 that was a poor start i had never done this kinda thing before and it was on one of the hottest days of the year no cold air feed :( if it was a colder day i prob would have got 6.9 ish
 

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Discussion Starter · #16 ·
LordNikon said:
A tad under 6secs is 5.9 secs in my reckoning. :shake:

I realistic advance on the 7secs (not sure on this either TBH) for +30bhp is 0.2. Making it around 6.8 secs.
i cant see that only 0.2 secs will be knocked off the 0-60 time if there is a noticeable and blantent increase in torque. would u really notice better low rev pull with just 0.2 secs off ur 0-60 time? is there a possibility of LN being over sceptical seeing as he has crossed over to the dark side and invested in a astra?
 

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In my experience LN has been very unbiased and provided factual information in all threads, the fact he’s strayed into the arms of a well known competitor in the quest for the power has very little to do with it. (LN you can have a reliable 300hp from a Rover T16 turbo)
I would debate a 0.2 gain in 0-60 time over standard and have a nice video to strengthen the case and to add a little spice to the occasion.
When you see the video you will see my point, plus other cross forum readers will report back (not aimed at you LN).

If someone can host the video for me it will help put 0-60 issue this to bed.

I believe a high 6 second 0-60 is achievable with the modification we’re talking about.

180 Boy
 

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There was nothing aimed at 180boy at all.

It was in response to Richb's post above more than anything else. I have no doubt you can get 300bhp from a T16 either, however, the original post was a 30bhp increase over the standard figure of 17x ??

Lets use 200bhp as a rough estimate. The ZS is alledgedly running 7.3secs 0-60 according to MGR. Realistically it is quicker, lets say 7 to keep the peace :)

So 7 sec 0-60 with 17X bhp
a 30bhp increase is going to be accompanied by an increase in torque. IMO you will be lucky to hit 6.5secs 0-60, on a regular basis. I do stand to be corrected though. I would guesstimate that a 6.7-6.8 sec 0-60 is a realistic figure that is achieveable every time.

I'm not being sceptical - far from it. I know full well how difficult it is putting power down through 2 wheels, 260bhp is not the easiest of things, and even with that I am lucky to get below 6.3 secs :cry: :cry:
 

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Discussion Starter · #19 ·
there has been talk of 'transformation of performance' (180 boy) tho possibly this is meant in higher gears (as the car seems pretty slow acceleratin above 100) and good gains in low rev torque. this suggests to me a decent decrease in 0-60 times, surely not 0.1/2/3 secs. surely this sort of decrease in 0-60 time is barely noticeable???
Also, acceleration 100+ greatly improved, this is an area once again where my mates integra type r stomps on our beloved 180. also any round guesstimates on increased MPG???
 
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