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New DR750 owner-- guess the dyno!

85K views 536 replies 80 participants last post by  kywhitelightning 
#1 · (Edited)
Okay guys the day is almost here! For those of you who may not know- I bought a 1992 VR4 in Vegas and I am now only a day and a half from being able to FINALLY drive it. I have been waiting patiently for my baby and in the process of waiting I have spoiled her with goodies.

I will only have my car for a good week before turning it into the masterminds that are FSR Motorsports and allow them to create my dream vehicle. With that in mind, and running off of Benson's dyno post, I am wondering what you guys think the final WHP will be.

P.S. there will be a prize for the person who is closest to the end WHP.

The mods:

3.1l engine
DR750 turbos w/ wastegate actuators
3S Pro EFI 128 ECU (tuned by the amazing trio at FSR Motorsports)
IBoost Controller w/ boost control solenoids
E85 with flex fuel
Walbro 400lph
FIC 1100cc High Z injectors
HKS DLI
NGK spark plugs/wires
Southbend Stage 3 clutch
Intake
3 in DP/exhaust
HKS BOV
92.5MM Weisco pistons
Brian Crower H Beam Rods
Forged Crank

What do you guys think?

Enjoy.
 
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#69 ·
663whp
 
#75 ·
As reported by others, my dilemma with achieving more horsepower lies in my fuel system restricting my goals with a soft, reliable cap at around 550whp (with a possibility of hitting 600whp reliably). With that in mind, my goal is not 550whp, so I am accepting ideas of fuel pump setups which have the ability to reach 650+whp on e85 reliably. The more I talk to FSR the more I like the way that they think: they believe in achieving horsepower without the slightest detriment towards reliability and quality. This being my daily driver, I fully support that notion.

The plot thickens... I do not want a cap at 550ish whp nor do I have the pockets to comfortably afford the price to get the dual fuel pump setup. I am fully aware that the dual walbros is the most reliable way but is there another reliable avenue to pursue that may be more cost-effective? I researched various in-line pump setups... has anyone had reliable success with this setup? Any other recommendations? All ideas will be appreciated. If I cannot find a better setup then I may have to bite the bullet. :(
 
#77 ·
#78 ·
A Walbro 416/485 will get you there. To go much past 30 psi you will probably need to add a BAP unless a single one can do 700WHP on E85 which I haven't seen yet across other platforms. I would also recommend 1200-1600cc injectors for a little extra head room if you push past 30 psi.
 
#79 ·
Wow thanks for that post! Rays build looks impressive and gives me hope to push for comparable numbers. Truly impressive work. As far as the BAP, I def would like to go through with it but I heard something about the ProEFI not working well with the BAP. I personally would love the idra of pushing the turbos to the point of 700whp but I think that I would need cams for that as well. The FiC injectors that I bought have pushed a few cars to 750ish whp but then again that was on a different platform. Thank you for the help guys- I will do more research on the BAP and see if it is a reliable upgrade. Thanks again.
 
#82 ·
I had looked into it and they're definitely a sweet ecu setup but including all the flex fuel stuff it was going to be around $3500 for a complete package not including tuning so I decided against it for now. I can handle the flashed ecu enough that I'll do switchable maps until/if Greg gets the flex fuel fuel and timing interpolation working. It's very possible with the stock ecu.
 
#83 ·
yes but the capability of this compare to aem specially v1 worth doing it. the timing sensitivity of it make it safer to run high compression and you can even setup traction control. Destrou is it possible to let me know the final price of it installed and everything. you can p.m me if you don't feel comfortable doing this. thanks
 
#84 ·
I'm running dual pumps ( not Walboro's) they are 340LPH pumps and they are working well. Cars is making 656 on 93 but I just installed my meth kit so... hopefully Ray will find the time to come and tune it for me and shoot me past 725 to 750 AWHP.. Good luck with the build.

What did they think of the Engine?
 
#86 ·
Yes, I was definitely sold on the ProEfi as well. Having the luxury of changing fuel contents while not having to worry about blowing up your engine was something that I couldn't pass up. The ECU seems very impressive and I am glad that I have experienced minds setting it up for me. Although I do not have the ability to drive the car yet, I enjoy the peace of mind and convenience that comes with having this powerful ECU. I definitely recommend it if you are willing to put the money in. Fortunately, FSR Motorsports provides great customer and trains those who are willing to learn about how to properly operate the system. I fully intend to utilize this resource and try to get a better understanding of what's going on.

And Benson, I haven't asked them personally about the engine but I do know that the swap is at the end of the list-- after setting up the ECU and the fuel system. The moment I find out about the engine I will relay the message to you-- thanks again for building a great engine-- I am excited to see what it can handle! And you have quite the impressive set up going! Amazing power without the use of meth-- I can only imagine to see the numbers Pampena will be able to pull out of that. Best of luck!
 
#88 ·
In all honesty, I do not know the exact process that is going on right now. The ECU is the first stage of my car and it is also the longest stage of my car that they are doing-- with that in mind, I imagine there could be some custom work involved. If I were you, I would contact them directly. They are VERY helpful and are always willing to answer any questions; call and inquire about the ProEFI and they will be able to tell you EVERYTHING and anything about what it does and how they go about installing it. That's what sold me.
 
#90 ·
Last time I talked to Jason this was the rundown he gave me:

Pro128 ECU - $1879.36
VR4 Harness adapter $549.80
Wideband O2 kit - $138.67
Fuel Pressure Sensor - $132.76
Map Sensor (5bar) - $132.76
Flex Fuel sensor kit - $464.47
Can Gauge - $447.06

So almost $4k without a tune. That doesn't include boost control either.
 
#91 ·
AND as an update, I just purchased the ProEFI CAN Display:

I have yet to drive the car so I have no experience with how the car will run with it, but I do know that the ProEFI has a proven track record with other platforms and I am looking forward to seeing how well it operates on a 3S.

This display does the WORKS and I am excited to get this baby rolling with it; however, I am curious to see where they will install it.

Each day down is one day closer!

I definitely recommend the ProEFI for an ultimate daily driveable build; however, this is not to say that other builds without it won't be great.
 
#92 ·
Here is an update. The PROEFI system has been fully installed and all sensors running beautifully. It is able to run on E85 AND Pump Gas without any additional effort needed on my end. The Can Display is installed; the fuel system e85 Walbro 400lph, AEM FPR -6an lines, FIC 1100c injectors and spark plugs were all installed. The next step is the engine swap and the turbo install. The possible route that may be taken is installing the turbos onto the current engine, tune it, and then swap in the 3.1l engine. If this is the case, then I will be able to provide dyno numbers on the stock block for the DR750 turbos.

The progress is going smoothly with minor complications due to miscommunication; however, ultimately, I am happy with the progress of the car and I am looking forward to it being complete in a reliable manner.

As an update- here are dyno charts of the ProEFI system on the stock turbos.

<a href="http://s15.photobucket.com/user/XxFREDHOTxX/media/6g72_9b_1100_stock91_proefi91_proefi91ebc_proefiE501.jpg.html" target="_blank"><img src="http://i15.photobucket.com/albums/a379/XxFREDHOTxX/6g72_9b_1100_stock91_proefi91_proefi91ebc_proefiE501.jpg" border="0" alt="Stock9bProEFI photo 6g72_9b_1100_stock91_proefi91_proefi91ebc_proefiE501.jpg"/></a>

<a href="http://s15.photobucket.com/user/XxFREDHOTxX/media/TORQUE_6g72_9b_1100_stock91_proefi91_proefi91ebc_proefiE50.jpg.html" target="_blank"><img src="http://i15.photobucket.com/albums/a379/XxFREDHOTxX/TORQUE_6g72_9b_1100_stock91_proefi91_proefi91ebc_proefiE50.jpg" border="0" alt=" photo TORQUE_6g72_9b_1100_stock91_proefi91_proefi91ebc_proefiE50.jpg"/></a>
 
#93 ·
Sweet man, got to love that 9B boost curve, 20psi peek and 10psi at red line:)

My vote is to slap on the 750's on that stock motor and dyno it then change to your built motor would be interesting to see the difference.
 
#94 ·
Run the 9bs on the built engine until its broken in and then swap the DR750s in after your first oil change. The 750s are too expensive to trust a new engine during its break-in
 
#95 · (Edited)
Break in? Man Ray built my motor, dynoed the car with a New clutch and it's been on every since.... slap those 750's on that old engine for now until you can get the car to Ray or someone else that know's these cars

it does make more sense to install the new motor but only for a reasonable price!!!!! they are trying to take advantage of you man....
 
#96 ·
I wouldnt put the 750's on a stock engine if you're literally just gonna tune it and drop in the forged engine. Thats a good bit of lost cash on labor and the chance of breaking a piston to consider.

Jason
 
#97 ·
Yep. If you accidentally pop the stock motor and ruin the turbos that's another $2.5-3k to rebuild the turbos on top of swapping in another motor. Billet TD04s aren't cheap to fix and is another reason I'll be switching to an off the shelf turbo I can buy all day long for $1k-1500.
 
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