I decided to do some of my own testing. here are the mods made at each stage and there corresponding rear wheel horsepower as measured by a G-Tech.

Base Config: Stock Chip, Factory Airbox, Primary Muffler Bypass pipe(fabspeed)

1st Config: Fabspeed Chip, drilled out factory airbox, primary muffler bypass pipe

2nd Config: Fabspeed Chip, Powerhaus Ram Air Intake, primary muffler bypass pipe

3rd Config: Authority Chip, Powerhaus Ram Air Intake, primary muffler bypass pipe

4th Config: Cyntex Chip, Powerhaus Ram Air Intake, primary muffler bypass pipe

1st Config: 205 HP
2nd Config: 208 HP
3rd Config: 218 HP
4th Config: 229 HP

As for measurements. They were all taken on the same stretch of road. All using the same g-tech dyno. Car was operating at normal temparture. The 3rd and 4th configs were taken on hotter days +15F degrees (~85F).

For what it's worth I believe that the g-tech is a fair means of measuring horsepower, in that it will not over estimate hp unless you get the wrong car weight. I took my car to a dumping station and measured the weight (scale accurate to +/- 20lbs). Regardless the G-tech was always set to the same weight.

Any thoughts?

Cheers,

Boris

 

Jon,

I got the chip directly from Paul @ Cyntex. One thing i should have noted is that the fabspeed chip is suppose to be the same as a cyntex chip. However, the config I had on the fabspeed chip was wrong (it included the LWF & no cat), so once he (Paul) retuned it for me I got a huge improvement. The autothority is a close second to the cyntex. I can lookup my DME #, but does that matter?

Cheers,

Boris

 

You can reach Paul @ cyntex at 610-738-8804. I do not know if he sells direct, but he can certainly put you in touch with others who carry his product.

Also the 205/.85=241. I believe that the difference from 247 to 241 is two fold:

1 - age of car
2 - air resistance plays a factor on the g-tech dyno measurement. Therefore, I can only take the measurement for 1st & 2nd gears to minimize that impact. But that may take some of it into account.

And the 15% drivetrain loss is just an estimate, although I think it is a fairly accurate one.

Lastly, I think all the upgrades together pulled out the hp, none individually. I should mention the cost:

1 - Primary Muffler Bypass Pipe - $250
2 - Powerhaus Ram Air Intake - $400
3 - Cyntex Chip - ~$400

Total - $1050 for 24 HP, that's $43.75 per HP added. To me it doesn't seem worth the expense, but I also don't feel i should have to justify expenses on a pcar....

Cheers,

Boris

 

Boris

I have a G Tech but no instructions! Can you scan and email me them or fax on 0208 543 9111?

Hopefully thanks in advance!

Piers

 

For a perspective on the correlation between flywheel and rear wheel horsepower take a look at this article: <a href="http://www.castensdynojet.com/sample.htm" target="_blank">Power at the wheels versus power at the flywheel</a>

 

Jon,

Glad you thought it was worthwhile. I really liked Paul and thought he did a great job for me. How much did the chip cost you (if you don't mind my asking)? I'll tell you that I could notice a before & after and not only on the but dyno but also on the g-tech (which doesn't lie).

From what I heard this is one of the few real good solutions out there (cyntex). Most don't make any difference (except raising your rev limiter = more hp).

Cheers,

Boris

 

I did my first test today with the G-tech. Temperature was 22 C. I had installed:

cat bypass
cup bypass (1st muffler)
chip from <a href="http://www.m-dynamics.net/" target="_blank">http://www.m-dynamics.net/</a>
AJ-USA K&N cone filter

and 18 inch wheels working against me

What I realised later is that I had about 1 ltr. too much oil in the oil tank which didn't help either.

still the result where a surprising 224 HP

 

I've been looking for a relatively inexpensive way to crank a few extra horses out of my 90 C2 convertible and read the beginning of this thread with great interest.

There seems to be three components involved: the chip, the air intake and the bypass pipe. Is the number of horsepower gained a synergy effect of all these three components or is it safe to assume that the chip alone would add around 20 hp?

If so, I wouldn't bother with the other two components, since I use the car for daily commuting and don't have the need for a more articulate sound. <img src="confused.gif" border="0">

 

[quote]<strong>I drove much of this trip at 80 to 100 mph (even a bit higher for a few short stretches) and with aircon on for about half the time. I still got an average of about 22-23 mpg for the entire trip.

</strong><hr></blockquote>

I was pleasantly surprised, as I just drove 4 1/2 hours, with a/c on, at around 75mph and got 29.5 mpg (stock dme). Most of it, like 4 1/4 hours, was at 75 with maybe 15 minutes in local traffic. This was using gas not reformulated for smog areas. Not directly comparable to Jon's mileage as I'm sure his included more local mileage. Still, a good report on the Cyntex chip - maybe Jon can be tempted to take it into his local dyno?

 

Hi Boris
This is Joe @ Fabspeed Motorsport. You should have mentioned that you received the incorrect chip from us & Cyntex. Cyntex makes great chips with versions for all kinds of bolt-on modifications. I am glad you got the correct version as the 1st chips was tuned richer for Catbypass pipe and light flywheel.....this shows why the 2nd correct chip added more power as it is leaner as you still have the catalytic converter on the car that consequently provides more backpressure.
Have a great day
Joe @ Fabspeed 215-646-4945

 

I just did a 540 round trip from Leeds to Loch Lomond. My trip computer thing tells me I used 11 litres/100 km, which equates to about 25.3 mpg (using UK gallons 1 gall = 4.546.l). Using US gallons I got 21.5 mpg.

However, I was doing 105 mph most of the time (at 4000 rpm) with lengthy streches at 115-125 mph, which probably eats petrol!!!!

 

[quote]

However, I was doing 105 mph most of the time (at 4000 rpm) with lengthy streches at 115-125 mph, which probably eats petrol!!!!

[/QB]<hr></blockquote>

All those speeds are alleged right?

<img src="graemlins/bigok.gif" border="0" alt="[thumbsup]" />

 

On a trip to Cornwall at Easter I averaged 80-100mph (alleged) on motorways plus the usual slowing down (marginally ) for the various roundabouts on the A30 etc. - there was not that much traffic - just a couple of bits here and there and I avergaed around 27mpg. My computer tells me that if I sit at 80mph (alleged) I am getting around 31mpg - barring any lead in the right foot.

Christer

(straying off topic somewhat as this has nothing to do with performance enhancements - apart from Guards Red (+15BHP), pin stripe interior (+3hp allowing for non tear drop mirrors) and the aerodynamic wheel nut lock covers... )

 

fyi -
2 Cyntex chips on the Rennlist (nonmember) classifieds in the parts section. $75/each. Looks like a good deal since this thread lists them at $400.
Saw the ad and remembered this thread...
Jack