I installed stage 1 and 2 intake pipes on my 2007 V last week. Prior to install I had the interior coated to reduce friction and eleminate any corosion threat. The install took about 3 hours. The engine cover will require modification to fit. To check HP increase a dynometer manufactured by Dyno Dynamics was used. The bench mark showed 356 RWHP (totally stock). After modifications the current rating is 394.9 RWHP. The engine sound is only slightly elevated at idle and up to ½ throttle. After that the supercharger can be heard. It is fantastic (if you like the whine of a supercharger). The improvement in acceleration is great. So far I am very pleased. I plan to open up the front like Bob did so it can breathe better. I will be taking it to the strip one day soon to see what the quarter mile time looks like. Lastly I want to thank all of the folks that came to RII for making me feel so welcome. The event was a real thrill.
Thanks
Terry

:party Sure would like to know more about the Stage one & two intake pipes.
Not only would the additional power be welcome but hearing the whine of the blower appeals to me

You guys got 443 hp and can get more, Thats not fair. :cry
I just wish there was something that would boost my mere 320 HP. :nodno
As we know right now there are no "chips" that will work without setting codes.
Maybe one day someone work on this motor.

Blaise

I installed stage 1 and 2 intake pipes on my 2007 V last week. Prior to install I had the interior coated to reduce friction and eleminate any corosion threat. The install took about 3 hours. The engine cover will require modification to fit. To check HP increase a dynometer manufactured by Dyno Dynamics was used. The bench mark showed 356 RWHP (totally stock). After modifications the current rating is 394.9 RWHP. The engine sound is only slightly elevated at idle and up to ½ throttle. After that the supercharger can be heard. It is fantastic (if you like the whine of a supercharger). The improvement in acceleration is great. So far I am very pleased. I plan to open up the front like Bob did so it can breathe better. I will be taking it to the strip one day soon to see what the quarter mile time looks like. Lastly I want to thank all of the folks that came to RII for making me feel so welcome. The event was a real thrill.
Thanks
Terry

My final Dyno run (after cold air pipes and Dyno tune) showed 409.6 RWHP and 393.9 FP torque. Max torque was delivered at about 3800 rpm (pretty amazing). An XLRV was shown in the Sunday paper they called it "The Beautiful Beast", an appropriate name!!

Given the 80% ratio between stock HP at the flywheel (443) and at the rear wheels (356) your 395 tuned HP at the RW means that the engine is now producing about 494 HP at the FW. That's a very cool 51 HP (or 11%) improvement.

Are you still using D3's plug-in ECM module or did you actually do a flash tune of the on-board ECM?

Given the 80% ratio between stock HP at the flywheel (443) and at the rear wheels (356) your 395 tuned HP at the RW means that the engine is now producing about 494 HP at the FW. That's a very cool 51 HP (or 11%) improvement.

Are you still using D3's plug-in ECM module or did you actually do a flash tune of the on-board ECM?


The cold air intake made such a dramatic difference in fuel/air and RWHP I felt it would be better for the engine to go with a conservative flash tune on the on- board system. After quite a few calls and internet search I was referred to a company specializing in GM tunes. I checked out some references and their shop and confirmed they had the software for the XLRV. Cost of tune $500. The resulting power and torque curves are very smooth. the tune added 10 RWHP for a total of 409.6 probably pushed the FW over 500. What a rush!!

My final Dyno run (after cold air pipes and Dyno tune) showed 409.6 RWHP and 393.9 FP torque. Max torque was delivered at about 3800 rpm (pretty amazing). An XLRV was shown in the Sunday paper they called it "The Beautiful Beast", an appropriate name!!

Wow! I got my D3 kit sitting on the floor here, and never installed it.... hoping I'd be able to get it dyno'd before I installed but, but now I don't think I'll wait.. sweet!

Wow! I got my D3 kit sitting on the floor hear, and never installed it.... hoping I'd be able to get it dyno'd before I installed but, but now I don't think I'll wait.. sweet!

I have a few tips that may make install easier/better I have sent you a private email you may want to look at.

my D3 parts just arrived...please pm me your tips and tricks.

I installed the D3 stage 1 & stage 2 intake and then had my car tuned on the Dyno, the results are: max hp at the rear wheels is 419.2 and the torque 398.9.
The temp was 90 with humidty 66%.
Needless to say I am very pleased with the results, as was the tuner who said he was quite impressed with the outcome. He used HP Tuner's software and when I dropped it off he said we should pick up 15 to 25 hp but after tuning he said this blowers really do perform well. This should equate to approx 524hp at the flywheel for a total pickup of 81hp.

larry

:party

sorry if you said in other post but do you have stock exhaust and could you post some pictures i'd like to see how pipes work with cadillac cover over motor

My car of course is a "V" and it does have stock exhaust. The motor cover will not work with the D-3 pipes.

wow thats a lot of power just imagine if they made a corsa or borla exhaust even more power. nice setup!:thumbs :

Larry:

Glad to hear that you achieved such impressive results after installing the D3 stage 1 and stage 2 intakes and had your ECM tuned using HP Tuners software.

A couple of questions (feel free to send me a private e-mail if you'd like):

1. Did you have a dyno run done after installing the D3 intakes but before tuning the ECM? What I'm interested in is how much of the improvement came from the intakes and how much came from the tune itself?

2. Do you know what adjustments your tuner made in specific areas such as air/fuel mixture, spark advance, shift patterns, etc.? I'm assuming he made several runs and made incremental adjustments to these and other factors to achieve maximum performance.

3. Did your tuner provide you with a copy of the file on a CD on your "base" tune as well as the file for the enhanced tune? Did you purchase your own copy of HP Tuners software?

4 Did you make any modifications in the stage 2 intake pipes - - specifically to coat or line them with any kind of rust inhibitor? I really wish that D3 would have fabricated their system out of aluminum, as they had originally planned, rather than steel.

It's great that we are finally starting to get some posts on this forum from people like you and RedV who are into the performance characteristics of this hot car. As we all know, the V comes from the factory with a very conservative tune and has much more potential than the stated 443 hp at the flywheel.

Thanks again and keep us posted.

Chuck

Chuck,

Sorry for the delay in responding to your questions pertaining to my 'V' with the D-3 intake and the Dyno Tune.

1. I did not do a base line on the car for Chuck had done his and I assumed it would be in the 354 to 356 range. We installed the intake pipes and didn't really want to spend the extra time to mess with just intakes and then have the tuner make the adjustments and Dyno again.

2. I do have the Dyno chart which does show the air/fuel adjustment but none of the other adjustments. I wanted a very conservative tune we were not trying to maxium everything as I didn't want to be on the edge of harming the engine or drive train.

3. I do not have a copy of the tune on a CD as we work with this tuner on all the Corvettes that we we add performance parts to. I did not purchase my own copy as he had a copy and only had to get HP to send him info for the Seimans computer as opposed to the Delphi that is on the Vettes.

4. I did not like the workmanship of the pipes as received from D-3 therefore I had them powder coated inside and out for when received they were alteady rusting on the inside. They state the are powdercoated but on the outside bur I feel the are simply painted for when we first powdered coated the original {paint} bubbled and we had to redone for a second time after bead blasting down to bare metal.

I am very pleased with the performance, as it now feels like a totally different car, probably cost me a couple mpg as it is impossible not to usr the extra powe and hear the slight sound of the supercharger.


Larry

Thanks Larry. Sounds like you've got one hot V!

Here is what the chrome cold air looks like.:yesnod
http://i214.photobucket.com/albums/cc247/redv_2007/CIMG0061.jpg

Very pretty!!!!! :thumbs

:cool :cool Very Nice...! :cool :cool

Here is what the chrome cold air looks like.:yesnod
http://i214.photobucket.com/albums/cc247/redv_2007/CIMG0061.jpg

Here is what the chrome cold air looks like.:yesnod
http://i214.photobucket.com/albums/cc247/redv_2007/CIMG0061.jpg

The final dyno (after tune) showed a 407 RWHP with a max torque of 470FTLB (wow).

Terry,

Is that torque of 470 at the rear wheels or the flywheel? Seems really high as we get 460 to 470 on the Vettes that we supercharge and they have over 500hp at the rear wheels. So far I am really happy with my set up the car drives like a whole different animal. Tough on mpg though, can't seem to keep my foot out of the right pedal.

larry

Terry,

Is that torque of 470 at the rear wheels or the flywheel? Seems really high as we get 460 to 470 on the Vettes that we supercharge and they have over 500hp at the rear wheels. So far I am really happy with my set up the car drives like a whole different animal. Tough on mpg though, can't seem to keep my foot out of the right pedal.

larry

When I take it easy mpg matches pre cold air mpg but when I mash it!!!
The torque measurement is at the wheels. This is max torque at low rpm droping to about 410 at 2500 rpm and holding till about 4500 rpm. trails off to about 375 at 6000. Some dynos report average torque this was run on a Dyno Dynamics at about 90 deg., sea level. and 85% RH. I have sent you an email with pdf attach of dynos with f/a PSI HP and FP.
The car was amazing and now its even better.
Terry

just curious what all is involved to make that kind of power is it streetable still

wow thats amazing to bad i'm on a smart buy but when the time comes to decide in 4 years if i keep it for some reason i will do that but i a horsepower junkie so who knows thans for info

:D "If everything seems under control, you're just not going fast enough" :smash

http://www.youtube.com/watch?v=UKGm2JA_7X8

Wow, thats one loud supercharger!

My friends GTP whines just like that, but in this case the rest of the engine sounds good too...

My friends GTP whines just like that, but in this case the rest of the engine sounds good too...

You might like that sound better if you had heard it while watching one run 110 mph in 12.8 for a qtr mile romp The clip is listening to it go by. People seem to like it even less from a couple of car links behind . :cheers

The Got her picture taken on a recient trip to the strip. Every one was hrilled to see her except the vette that was lined in the next lane.


http://i214.photobucket.com/albums/cc247/redv_2007/the_v.jpg

Very nice! What kind of times did you get?
Thanks,

Dr. Design

It wasn't as good as I was expecting. 12.7 @ 115. only 100s difference with and without traction control.
The video will show the super torque at work off the line but it was hot and humid. 85 and 85%. I idled while waiting to get up to the line. Intakes got hot. I have since insulated the bottom of intakes and raised the pipes up so not to touch motor. They now stay nice and cool (big difference). I will likely run again Friday. The temp is forecast to be in 50s. I believe
I will get a 12.5 0r 12.6. The picture was taken at the track by there potographer. I found it on their web site.
http://s214.photobucket.com/albums/cc247/redv_2007/?action=view&current=Produce.flv

Very Nice!!!! :thumbs :thumbs

Did you get a zero to 60 ticket and did you put it in the performance driving mode by hitting the rocker switch twice on the console?
And..................did you break loose spinning your tires, if you did, Come up to the line and put it in the gate and then kick it up to 2nd gear, put your foot through the grille and immeditely throw it out of the gate, it will drop back to 1st gear. This is the only way I know how to stop tire spin which changes all your numbers. In your video it looked like it launched really nice.
Bob

It wasn't as good as I was expecting. 12.7 @ 115. only 100s difference with and without traction control.
The video will show the super torque at work off the line but it was hot and humid. 85 and 85%. I idled while waiting to get up to the line. Intakes got hot. I have since insulated the bottom of intakes and raised the pipes up so not to touch motor. They now stay nice and cool (big difference). I will likely run again Friday. The temp is forecast to be in 50s. I believe
I will get a 12.5 0r 12.6. The picture was taken at the track by there potographer. I found it on their web site.
http://s214.photobucket.com/albums/cc247/redv_2007/?action=view&current=Produce.flv

Standby;
Does performance mode improve acceleration? The track in Houston has super traction (surface) so I got almost no wheel spin with traction on or off and almost no time difference. The video is with traction on. I made no run in performance mode. If you look at still picture you can really see the front end up at launch (great traction). Did power brake up to about 2500 rpm. I will try power break performance mode and completive shift next run and report results.

Doctor Design I ran in regular automatic shift. Does competitive mode improve?
I did not even know it would up shift when in manual! Any instructions thoughts on how to maximize 1/4 mile run. From video it is pretty apparent this V (with stage1 and 2 intake and tune) who would win the stoplight race with just about anything on four wheels. My time slips are at office will give you 60 80 100 when I get them.
As always good info available here.
Thanks
Terry

All that thing needs is a cooler air charge; a minimal addition of either nitrous or even water would make a big difference where heat sink problems exist. My 2003 Cobra had the same problems, and it just got worse while you sat in line waiting to launch. Once I added a 50 horse shot of nitrous my times dropped dramatically. A friend of mine installed a water/alcohol injection kit and achieved similar results. :thumbs

I agree, out in the west when it's dry that engine is starving for humidity. Just watch the NHRA drags and watch what happens when it changes from day to night.All that thing needs is a cooler air charge; a minimal addition of either nitrous or even water would make a big difference where heat sink problems exist. My 2003 Cobra had the same problems, and it just got worse while you sat in line waiting to launch. Once I added a 50 horse shot of nitrous my times dropped dramatically. A friend of mine installed a water/alcohol injection kit and achieved similar results. :thumbs

RedV, I sent you a private message.Standby;
Does performance mode improve acceleration? The track in Houston has super traction (surface) so I got almost no wheel spin with traction on or off and almost no time difference. The video is with traction on. I made no run in performance mode. If you look at still picture you can really see the front end up at launch (great traction). Did power brake up to about 2500 rpm. I will try power break performance mode and completive shift next run and report results.

Doctor Design I ran in regular automatic shift. Does competitive mode improve?
I did not even know it would up shift when in manual! Any instructions thoughts on how to maximize 1/4 mile run. From video it is pretty apparent this V (with stage1 and 2 intake and tune) who would win the stoplight race with just about anything on four wheels. My time slips are at office will give you 60 80 100 when I get them.
As always good info available here.
Thanks
Terry