DR750's V1 guess the dyno

[familyMAN]

590awhp.

[kywhitelightning]

590awhp.

[familyMAN]

So prove us wrong Have you posted a VD graph and I missed it?

[NOMIEZVR4]

Ohhh...the tension!!

[familyMAN]

I'll raise to 640awhp if you go beyond 28psi. For some reason I thought this was going to be 93 plus meth only. Didn't catch it was c16 plus meth.

Instead of "rolling eyes" at any guess below what you think, why don't you dyno then post what it is....or a VD graph to give us something.

[NOMIEZVR4]

Yeah...I know Jeff can provide VD graphs.. You may be surprised...its pretty healthy.

[Greg E]

I want to see this car blow the Chrome ECU dyno record out of the water! Right now its at 600whp.

[CoopKill]

VD 700+

[J. Fast]

VD 700+

Seems like that would be high for a TD-04. When you start winding it up the reversion and heat gets really wild. Hard to say the hot side can take it. Unless he can push past 35psi I don't think we'll see 700. It's like an EVO wheel so 20psi-500 25psi 550 30psi 600 32psi 625ish. The big danger is crystallizing the exhaust dumps when you start making all the heat from the over exerted tiny exhaust frame.

[kywhitelightning]

Posting VD graphs really defeats the purpose behind a "guess the dyno thread". I have posted pertinent mods and have entertained any questions to the best of my ability. IMHO, any guess below 600 is bogus when stock engine 750 cars in draw through are making that. To familyMAN, that deserves a roll of the eyes coming from someone's opinion I really respect on here but you also didn't read all the details so I guess shame on you, lol. Now, stating pump plus meth numbers under 600 are more than welcome because I do live in reality. This car is blow through, built heads, a FMIC kit that won't restrict it like stock IC plumbing and IC's, you might as well say wide open exhaust, and will be pushed on race gas. All that being said, here are two pulls from tonight as requested. These are temp AND baro corrected. I have for the longest time had a hard time believing VD DJ graphs because they just seemed to be inflated. I have only been correcting with temp up until today. I have been using the virtual dyno as the dyno for my graphs because they are 1.00 CF vs the DJ's 1.09 CF. Baro correction really brought these to where I feel they should be and these graphs I actually believe are close. Can you believe that Nomie? LOL. Uncorrected netted a +30HP bump FWIW. Pump 93 plus meth only.



Had a couple counts of knock up top on the red graph but, negligable in the grand scheme of things other than the timing it pulled out. It flickered the CEL light and that was it. The light is set to 5 counts. The blue pull had 3 counts and then went away. No light on that one. These pulls were done 3 minutes apart on my 2 favorite interstate spots. The blue was the second one.

I need to come up with a better way to get the meth delivery more consistent. The logs both read the similar IDC's and seeing as boost was very close the meth injection has to be the difference in AFR. The other thing to make mention is that these turbos like to surge in 3rd pretty bad under 3800-4000RPM in WOT. I have been trying to see if I can get away with pulls a little earlier in the RPM band but I don't think it'll happen. Once the RPM's climb they settle down but if I simply start the pulls from 4000 they are clean.

For the mathematicians out there, my MAF Translator logger has seen up to 672 g/s of airflow (not these pulls) that I have actually logged. I really don't log it too much anymore. It slows the logging rate a little on evoscan I think, and the translator is zeroed so nothing really important there anyway. I didn't log it this summer at all when I was leaning on it hard with the C16 added but, recently the conversation sparked interest to see a correlation between Hz read from the ECU's logs vs the actual g/s the MAF sensor is showing on the Translator.

I'm really hoping the weather will cooperate on the actual dyno day because this car is something else when the weather is right. J.Fast really hit the nail on the head when he brought DA into this thread. You can really tell in the seat of the pants when the weather is good and when it turns to crap. Tonight was a dreary night IMO based on the seat of my pants. I really feel for you guys at elevation. You're missing out on a lot of fun lol.

Jeff