Well the dump valve and ITG would make next to no difference between the two.

Do you both have Boost guages? You would need to check that too make sure what boost you're both running. He's not went all sneaky and fitted a Dawes

I went from std AE801 -> PPP -> AE801 because I didn't think the PPP ECU was all that impressive. The Tek2 is very similar in that it runs more or less the same boost (16.5psi) IIRC.

It really depends on how you were comparing. Was it a drag strip dash?

I've been with completely different cars on a blast and I easily stuck with the them. I was running a bog standard RB5 with an STI backbox. Still original catted DP and centre and I easily kept up with a fully decatted MY98 wagon with a Dawes and a partially decatted MY01 with dawes.

I'm not convinced that just running more boost is a gaurantee that your car will be much quicker than another. It needs to be a complete package - suspension, tyres, brakes, etc..

It certainly helps, but you might have to run 20psi to notice a HUGE difference.

Why don't you swap cars. Maybe he's just a better driver

Stefan

[Edited by ozzy - 4/1/2003 10:34:43 AM]

 

I just came back from a blast with a friend who has a MY99 with a Decat, equal length manifold and a dump valve and i've got a MY99 with a decat, a tek2 and ITG.

That makes me 1.2bar and him 0.8bar but we with literally tied together at all speed ranges in all gears, NOTHING could get either car to pull away from the other by more than a foot or two, it was a matter of seeing the start and end of his drivers door as either one of us moved past the other.

Either his Manifold is giving awesome output or I have a problem?

BTW he had a decent clutch which made him faster off the line but once rolling and both flooring it together we couldnt be seperated.

WHY?

 

If you look at Stephen Done's website, he has graphs showing his different mods inc. full decat, then manifold.

I must admit, I went from PPP to decat & std AE801 ECU and my car felt just as quick.

Depends on where you were "testing" the cars. If it was side-by-side on a long straight'ish road, then I wouldn't expect a huge difference.

Your Tek 2 is increasing boost to get more power. He is achieving similar power gains through his free-flowing zorts and manifold.

Now if you had those mods AND more boost, then you might see a bigger difference.

Stefan

 

Sorry, forgot the link

And to quote Stephen

Stefan

[Edited by ozzy - 3/31/2003 10:57:39 PM]

 

We've got the same exhaust, is his manifold really making up for 0.4bar?

 

It wasnt a drag strip but we did the 0-70 test on a main road when it was quiet and late last night, the cars were identical, REALLY identical!

 

You have to remember that when doing straight line stuff, you are only using a small part of the rev range, and it's all top end.

Apart from the initial start, you probably never dropped much below 5,500 rpm. The extra flow of the manifold and exhaust will show it's best gains at high revs. The remapped ECU probably runs lower boost above 5,000 rpm to protect the engine (just as the standard ECU does), so there probably isn't a great deal of difference.

However, if you did saide by side tests from say 2,500rpm and changed up at 5,500rpm, then you probably would see the benefits of the extra boost on the TEK2. When driving on twisty roads, the extra flexibility provided by having a better mid range pays big dividends.

John

 

If he has the maxim manifold, then judging from previous posts, that works particularly well with the turbo in the 99-00 cars; hence Stephen Done's good results.

Maybe he should look at a remap to see if that would make a difference ?
Ditto you with a equal length manifold ? (and remap, of course).

 

Remember that boost could be considered a measurement of how blocked your engine is - it literally measures the air that can't get into the engine. Hence, if you have an exuast system that frees flow up, there is less of a blockage for the same quantity of air flowing through the engine (this is the measurement of power - how much fuel (so air) can be burnt in a given time), so a lower boost measurement will give similar power.
As John says, the manifold is designed to run more efficiently at high rpm - where you were - and where the TD04 is running out of puff... so possibly with a free-flowing exhaust is giving nearly all it can but can't stack the air up any more. So boost drops.

 

Good day V's Bad day

Sipie and I have had many comparisons with various results

He's got an MY99 with decat downpipe and swana back-box.

I've got an MY99 with Tek 2.5, full scoobysport zorst, STIV intercooler and a dawes set at 1.2 bar.

Recently when coming back from Knockhill we both gunned it and the gap remained identical In fairness though his car was going well that day and mines just didn't feel happy and willing. There have been other times where I've pulled away especially above *cough* 100mph

So our conclusion on the matter is that it depends on how the car is going at the time and for this there must be loads of variables, fuel, air quality, air temperature, time since last service, engine temperature, oil condition, the cars mood , etc, etc. Sometimes when I drive my car it feels like it would struggle to pull a lead on hot-hatches and other times it feels like it would give supercars a very hard time.......the difference really is that great

 

yeah I have that feeling sometimes saxo boy!

 

If you are taking acceleration, thats different to a race on a twisty road. 0-60 stuff is pretty boring and doesn't prove anything. I had a tussle with a fiat 20v when my MY99 wash pushing 280 bhp, straight line I couldnt punish him, but using the torque through the gears on a winding road, he couldn't keep up. Torque is what its all about in the real world.

Having said that, you need a lot more power / torque to really punish people.

MB

 

so you reckon when i go to santa pod to race my mates civic type r he will finish next to me?

 

Standard, yes, if you have mods on the scoob you will get the legs on him. 0-60 the scoob is better anyway, but there wouldn't be much in it. I still maintain you need a lot more power to really embarras someone.

MB

 

Theres a thread in other marques at the mo on Civic Type R's.

"what the f***" is the title

MB

 

Agreed, you need huge power advantage to totally punish. The only time I can put my hand on my heart and say I was left for dust was when I had the VTS 130bhp and got spanked by an E46 M3, 343bhp! Gives you an idea of the difference you need!!!