Standard SE Dyno + Wakefield lap time

mrschlim · Postby **mrschlim** » Mon Nov 21, 2011 5:40 pm

I went down to Insight Motorsports at Arndell Park to put the car up on the rollers and get a baseline figure.

97 rip-snorting Kw.
Max boost of 7.5psi, and pig-rich at WOT with 10.2-10.5:1 AF.
No wonder she feels so slow.

Mods should be in over the next 2-3 weeks; ECU, intake, intercooler, dump, injectors...
Any guesses as to what I'll be looking at after these are completed?

My natsoft time was 1:15.3. It'll be interesting to see how it goes with the 15" rims and tyres fitted... not to mention the rest of the mods.

sailaholic · Postby **sailaholic** » Mon Nov 21, 2011 6:05 pm

Why isn't ecu done already?
surely you don't need injectors upgraded of you're running super rich and not adding boost?

Na cars can achieve this figures, so I'd expect quite a bit more. Dann will probably ask more questions then give you a ball park.

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mrschlim · Postby **mrschlim** » Mon Nov 21, 2011 6:28 pm

sailaholic wrote:Why isn't ecu done already?
surely you don't need injectors upgraded of you're running super rich and not adding boost?

Na cars can achieve this figures, so I'd expect quite a bit more. Dann will probably ask more questions then give you a ball park.

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I don't follow.
It's the stock baseline for this car. The ECU isn't already done because it's still a stock car.

http://www.flyinmiata.com/tech/MSM_upgrades.php - plus every other write up I've trawled through points to the injectors running out of puff pretty early in the piece. It makes sense to address this at the beginning and pay for a tune once only.

SE's are rated at 121fwkw, so mid-high 90's on the rollers sounds about on the money to me. It's making about 5kw more than a stock b16a civic (rated at 118fwkw) on the same dyno.

Besides, I thought stock NA cars were making in the region of 75-80kw.

honki3rider · Postby **honki3rider** » Mon Nov 21, 2011 7:11 pm

My N/A 8B is putting out 81rwkw. With those mods in with a tune I reckon about 150rwkw. You'll be having a lot of fun and definitely bettering your WP times.

Lokiel · Postby **Lokiel** » Mon Nov 21, 2011 7:17 pm

Aftermarket ECU, AEM CAI, larger injectors, 2.5" exhaust and downpipe should net you a safe (no knocking) 145-152kw at 12psi from an "honest" dyno (after my own experiences and those of others I know personally, figures above this should be viewed with suspicion).
Anything higher will require a larger turbo.

evil_weevil · Postby **evil_weevil** » Mon Nov 28, 2011 9:21 pm

I look at the mods to do similar to what I did to my old RB25 skyline
ECU, Boost controller, larger FMIC and full exhaust
the car went from 160rwkw stock to 195rwkw
bout a 20% increase?

so work that out for yours haha

I thought though the turbo MX5s were 150kw at the fly?

anyhoo - you might find your lap times quite similar for a while as the more power might take a little bit of time to adjust to.
after awhile Id be wanting 1.10 - 1.11

mrschlim · Postby **mrschlim** » Tue Nov 29, 2011 10:39 am

evil_weevil wrote:I look at the mods to do similar to what I did to my old RB25 skyline
ECU, Boost controller, larger FMIC and full exhaust
the car went from 160rwkw stock to 195rwkw
bout a 20% increase?

so work that out for yours haha

I thought though the turbo MX5s were 150kw at the fly?

anyhoo - you might find your lap times quite similar for a while as the more power might take a little bit of time to adjust to.
after awhile Id be wanting 1.10 - 1.11

I think the SEs were rated at 121kw, from memory the SP was around 150kw.

If I manage to pull a 1:10, I'll be very pleasantly surprised...

sailaholic · Postby **sailaholic** » Tue Nov 29, 2011 10:57 am

Sorry thought you had already would the boost up. Didn't tweak too it being 100% stock still with that afr.

I meant modified na could reach 100kw figures, not stock. Sorry for the confusion.

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Guran · Postby **Guran** » Tue Nov 29, 2011 1:03 pm

1:15.3 in a stock SE is very respectable for a first outing. I assume you were on regular street tyres? The club record for a stock SE on street tyres (not R-specs) is 1:15.09, although we rarely have stock SEs in attendance. Stock SEs run in the same class as stock NCs, for which the club record is 1:14.38. I suspect the limit in both is a bit quicker though. As evidence, Rick Bates did a 1:14.60 in a stock SE (MOTOR, Sep 2004), and Warren Luff did a 1:14.10 in a stock NC2 (MOTOR, Aug 2009). So low to mid 14s is your target in a stock SE or NC.

With respect to the 1:10-1:11 estimate, I suspect evil_weevil was actually referring to an SE modified with the variety of enhancements he suggested. There's no chance a stock SE would get near those times. However, fit a set of R-specs to an otherwise stock SE, and a mid 1:12 would be possible (they're worth two seconds a lap at Wakefield).

mrschlim · Postby **mrschlim** » Tue Nov 29, 2011 3:19 pm

Guran wrote:1:15.3 in a stock SE is very respectable for a first outing. I assume you were on regular street tyres? The club record for a stock SE on street tyres (not R-specs) is 1:15.09, although we rarely have stock SEs in attendance. Stock SEs run in the same class as stock NCs, for which the club record is 1:14.38. I suspect the limit in both is a bit quicker though. As evidence, Rick Bates did a 1:14.60 in a stock SE (MOTOR, Sep 2004), and Warren Luff did a 1:14.10 in a stock NC2 (MOTOR, Aug 2009). So low to mid 14s is your target in a stock SE or NC.

With respect to the 1:10-1:11 estimate, I suspect evil_weevil was actually referring to an SE modified with the variety of enhancements he suggested. There's no chance a stock SE would get near those times. However, fit a set of R-specs to an otherwise stock SE, and a mid 1:12 would be possible (they're worth two seconds a lap at Wakefield).

It wasn't precisely "stock"; have a set of braided lines, hawk pads and ap racing fluid. Running on some Star Specs, which are almost as good as R-compounds in my opinion. Takes the gloss of the time a little. Suspension, motor and wheels are stock.

I think there is about a second left in the car, but I'd need a bit more practice (and bigger cojones).

Guran · Postby **Guran** » Tue Nov 29, 2011 6:18 pm

Those are pretty much all "free" mods for "standard" cars at NSW Supersprints and club trackdays too. The Star Specs are now permitted on standard cars at our club trackdays. Let's assume they're worth a second a lap? So a low to mid 1:13 would be a stretch target if you were really having a go. Lots of practice too! But like I said before, 1:15.3 is a great effort.

mrschlim · Postby **mrschlim** » Mon Dec 19, 2011 12:06 pm

Ended up at WP last Friday; best time of 1:13.8 with consistent 1:14.2's (13.8 may have been a malfunction by the lap timer as I was miles off that time every other lap)...

Anyway, the extra second and a bit is the result of a set of 15" rims with some Nitto NT01's.

evil_weevil · Postby **evil_weevil** » Mon Dec 19, 2011 9:25 pm

well done!!

more seat time too will see your times drop

mrschlim · Postby **mrschlim** » Tue May 29, 2012 7:56 pm

1:10.5 today...

Finally got back out there today to test the mods (stuff listed above)... Had a tyre issue driving down there and as a result, I wasn't running matching front and rears.

There is an easy second and a half left in the car in the present configuration, just need more practice and a few little tweaks to the alignment... and proper tyres for the front