hello racers. i think i mentioned the logger here once 2-3 months ago. it was introduced in USA in May or so. and the price has been at an affordable $650 (considering the potential benefit, features, and functions of this logger).

well, 2002 is near the end and the $650 introductory price will be over. beginning Jan 1st. the price goes up to $775. so if you were thinking about the unit, don't think too much longer.

i've been playing with it for several months and it is tremendously useful, i've only been using the main unit + GPS. i didn't add any additional sensors. i still get a lot of good data to analyse about my driving and my car.

my website is http://www.dl90.com but recent moved my server and DNS have not been updated yet. for now you can get to it by IP. http://66.134.92.79/dl90/

feel free to email me frank@hybrid-theory.gotrice.com if you have any questions.

sorry if this is a spam, i just wanted to share something that i think that is very useful yet somewhat affordable.

see, my background is all open track/DE events (some 57 days this year). we get to have experienced drivers/racers/instructors help each other out in real time in passenger seat. but if you're only testing/qualifying/racing that means you can't have anybody to give you feedback. a datalogger will get you real data to check out. everything you and your car do is reflected in the data collected. at 100 times a second sampling, nothing is missed.

on another note, i got my NASA comp license. i want to run SM but might do some IT racing too. hope to see some of yall @ the track soon.


(straight cut and paste from my improvetouring.com post)




[Modified by GhettoRacer, 4:53 PM 12/11/2002]

 

What about the Race Technology's AP-22 Performance Meter, do you have any opinion on it? I think it would be usefull to help with sorting out what works in regards to setup for Autocross - especially since you can continually record the G's throughout a run.

Race Technology Performance Meter page


[Modified by Vracer111, 11:32 AM 12/11/2002]

 

Having recently received the DL90 and giving it a try,

It is far better than I expected. Easy to set-up, the software is well laid out. The only problem is that I got it after our season was over…. Sigh.

I am not affiliated with Frank just wanted to give the to a good product at a great price.


Dave
#72 – ITS/IP2, 96 GSR

 

i have no experience with RT's performance meter lines. based on the DL90 experience though, i think they should be excellent. search around, there should be reviews about them.

DL90 technically has all the data to perform autox analysis too. i'll bring it up to them. as is, laps must be circular to generate track maps before u can do any analysis.

 

okay FWIW, the updated DNS zone files have propagated. you can access http://dl90.com directly now.

 

just 3 days left...

also, don't for get the ISSAC head and neck restraint deal of $250 off is also only good until end of the year...

arrg!! i gotta get a ISSAC myself.

 

No. You got to do more research.

You should be getting a HANS!

Seriously though, do you know anyone wearing a ISACS? I know a few people who have been wearing the HANS for at least a whole season. I wore mine for the first time @ the 12 Hours of Thunderhill. I knew it was there but didn't feel any discomfort.


[Modified by civicrr, 3:48 PM 12/29/2002]

 

i like the theory and principles behind ISAAC better... of course i'm no engineer. with the discount it's decently affordable. $645. its designer has been pretty helpful in answer questions and providing tehcnical answers.

 

They were having a discussion about the merits of both on improvedtouring.com a while back. One of the things that came up was the ease of getting out of the car. With the HANS, once the belts are released, it just 'floats' on your shoulders. The ISAAC will require you to remove two more pins.

The hardware mounted on the helmet is much larger on the ISAAC unit. During normal driving, it will be like having a heavier helmet which will lead to fatigue.

I understand the theory. It makes sense but keep this in mind. Shocks fail. They get worn. Sometimes it is hard to tell on our cars. They don't always leak, etc. How will you know until you need it?

True, with the discount, the price is pretty low. Their are others that cost less. Driver's are switching from those to the HANS. Sterlin Martin is one recent well documented example. There have been reports/rumors that other body parts get damaged from these other strap devices. There are others who wouldn't be alive without the HANS eg Jason Priestly. The HANS economy model, which dimensionally, is the same, cost $975. It weighs just a little more than the 'pro' model. In fact, I was told it is lighter than the old pro model. This is almost like the argument that Brand X has the same approval, why should I pay more for the Bell/Biefe/Simpson/Shoei. The only thing is that the 'I' brand has yet to be approved by any racing org. at this time. What happens if it doesn't? Will you need to buy another?

If you haven't seen one of the newer ones (HANS), there has been some improvements. The hardware has been improved making it easier to clip in & out. The install was a snap. I did myself. (Helmet hardware install is still included if desired, btw.) The 'rubber' surface that grips the shoulder belts is now moulded instead of being a seperate attached piece.

Anyway, just some of the stuff I thought about when making my choice. There are those that like to pave the way. Great. I just don't want to be the one with safety equipment for myself.
Mike

 

well, presently i'm wearing a fiberglass Bell helmet so it isn't the lightest to start with. the weight of the ISAAC (shock probably the heaveiest part) is partically supported by the harness too. and the components being aluminium it can't be that heavy. the new g-force unit looks ok, and is priced pretty cheap (although needs *their* helmet). i don't like the other strap type designs at all.

ohh come on. i think with good QC this is not going to an issue. i don't believe it will get worn for the very little hours used is racing and the slow head movements. one thing about HANS is the the effectiveness is very dependent on the slack. ideally i'd like to try on the ISAAC and HANS on to see which i'd really like. but for now ISAAC will have to do. they have a 30 day return policy anyway (minus shipping). that's not bad at all. maybe i can try your (or Roger's Hans) to see how it feels.

i don't plan to w2w race with out a HAN restraint. certainly HANS has the best rep right now. but i think the ISAAC is going to do well.




[Modified by GhettoRacer, 10:22 AM 12/30/2002]

 

I know the shock thing was a little extreme. I was just going thru all the thoughts/possibilites that I thought about for my own decision.

I can't speak for Rog, but you would be welcome to try mine. I will definitely be @ the two Feb. NASA events running the enduros (Sunday). I will need to either run HPDE (NASA), some other event or a test day before the first race day. We are redoing the complete brake system plus other stuff so it will need to be checked before comp.