Focusing on Balance - Getting Ready for the 2018 Pikes Peak Hill Climb
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- เผยแพร่เมื่อ 8 ก.พ. 2025
- The 2018 Pikes Peak International Hill Climb is coming up quickly.
The race will be June 24th this year.
As we are working on wrapping up getting our car ready for the race this year, we wanted to take a minute to let you know what we have done to the car to improve it, and why. Our result from 2017 was not expected, and we were basically forced to go back to the drawing board to figure out what we missed, and we hope that in doing so, we will be making some big strides this year.
Thanks for watching, and thanks for your support!
Here are a couple links to the parts that we discuss in the video:
www.flatironstu...
www.flatironstu...
Glad to hear the LM450 Twin Scroll Turbo did you proud! Continued success for 2018 Pikes Peak Hill Climb :)
Thanks for that! And as happy as we are with it so far, we know that there is a lot more potential in the turbo as well. We just have to build an engine that can extract it :-)
But that will be a bit further down the road.
Thanks for all your help getting our turbo sorted out!
Is the LM450 considered bolt in? I really like the way that curve looks on the dyno sheet and I'm thinking that would be great on a street car. Does it utilize the same compressor inlet size as OEM? And is the turbine inlet flange for the twin scroll or usdm EJ up pipe?
Excellent channel full of great info and content, thank you so much for taking the time to create it!👍🏼👍🏼
Absolutely! Very glad that you found it and that our channel has been helpful! Pass it on if you can!
Thanks for watching and Stay Tuned!
Traction control in the WRX and STI is horrible. I race as well as daily drive with both traction control and track mode turned off in all weather conditions. I find that the way the car engages the brakes under slippage not only slows down track times but sends weight transfer in ways that are detrimental to the line you are trying to achieve. I have spun out due to the weight transfer with traction control engaged and was very unimpressed. That said the ABS system is beyond necessary when tracking this car. Good luck in all your endeavors guys and thank you for all your helpful videos.
Thanks for the comment!
We have to say that from our testing the traction control really does make a good difference, and we were actually surprised how little it intervened on track. We mainly wanted this as an option in case we run into rain/slick surfaces, and for that it really helps.
We will continue to play with it I think, and so far, everything that we have done to the car has made it a lot more predictable and stable.
Thanks for watching!
damn it sucks to see the Dom3 perform so lack luster. I was hoping for more down low power. I am using the 1.5xtr right now with my 5-speed still and its pushing over 450ft-lbs by 4k RPM. I wanted to extend the powerband more over without sacrificing a lot of down low power. I am running E85, so that would probably make a difference, but I might just go a rotated setup.
Thanks for your comment. Keep in mind that this was a twin-scroll Dom 3.o. The Blouch hot sides are huge, and that was a big part of the issue.
We have a twin-scroll Dom 1.5 on the car at the moment, and we have been having similar issues. Going back to the LM450 here shortly when we make a couple of other changes to the car.
Thanks for watching and Stay Tuned!
Adding brake biase controller adjusting as well between the front and rear wont also be additional improvement?
Thanks for your question Germaine. That is something that we looked at. We definitely wanted to improve the capability of the rear brakes, which is why we went that route as a start. And in testing we realized how modern ABS systems do work somewhat like a proportioning valve. We did find an AP Racing valve that would work with the Subaru brake lines, so that is something that we may yet play with, but for now, just getting the ABS on line is working well.
Thanks for watching!
Hey Jon , have you ever tried a FP turbo? I run the old 68HTA and it made 24 psi by 3500 rpm on E-85 the car put down 380 whp and 424 torque.
Thanks for your question. Up until last year, we were running a twin-scroll turbo from Turbo Dymanics (LM450). Since that manifold didn't clear the dry-sump, we had to switch to single scroll. With the Turbo Dynamics turbo we were actually able to put a single scroll housing onto our existing turbo (which is really helpful since we have a spare as a back-up in addition to the turbo on the car), and that is still the turbo we are running.
I think that a change to the whole set-up may be coming in the next year or two, as we take a full look at our engine package.
Thanks for watching and Stay Tuned!
Thanks so much for sharing such detailed videos with the community. Were the dyno pulls you showed done with a 2L or 2.5L?
Thanks for your question. These were done on a 2.5 liter engine.
Thanks for watching!
Thanks for the video. Sounds like starting with the STI platform would have been better instead of the WRX?
Thanks Walter. Yep, there are a lot of components that are just much more capable on the STI compared to the WRX. But seeing as we inherited this car when it was a write-off from our back lot getting flooded in 2013, we couldn't say no :-)
Slowly but surely we are going through everything, and making it better.
Thanks for watching!
It would be great to see your review of 2018 event! I saw your result but it's interesting to hear details from you.
Also, have you considered weight penalty of upgrade to STI drivetrain?
Thanks for your question! There was a lot going on this year, and I have to go back and see what I can find for PPIHC this year.
As for weight penalty, we gained about 80 lbs with the 6MT drivetrain. It is a bit of weight, but the reliability, and the function of the front and center differentials is well worth it.
Thanks for watching!
@@FlatironsTuning Yes, having DCCD is really great, but keeping weight down is really important too. I'm lucky to have original GC8 STI with 5 speed DCCD and for near-stock power it's just perfect. It can keep up with later STI cars, and I think weight is big help to that. Ratios are also just perfect for my local track and DCCD is very useful if controlled properly. I run MapDCCD for that and it just transformed the car, I must say. Looking forward to more videos from you, it's interesting to see how your car changes over time and why! )))
@@777MAV That is definitely a great set-up! Glad that you like the MAP DCCD too. That definitely makes a huge difference!
Hey Jon , have you ever ran a FP turbo ? I ran the old 68HTA and got full boost at 3500 rpm 24 psi on E-85 the car made 380 hp and 424 torque.
hey m8s what exhaust manifold and uppipe were you running on the car with the lm450? oe jdm or aftermarket? I have a 2.5 sti and an oe jdm twinscroll manifold/uppipe in the parts bin here. wondering if the pipes are appropriately sized for the lm450.
Thanks for your question. We were running an aftermarket header and up-pipe. But we did have a stock TS header as well. As long as your parts are from a twin scroll STI, the will work with the aftermarket turbos.
And from what we saw, there was not any size difference between the aftermarket twin-scroll manifold and the OE manifold.
Hope that helps and Stay Tuned!
Is this a true twin scroll turbo or is it a single scroll with twin entry made to suit JDM uppipe?
Thanks for your question. On the VF37 and Blouch Dom 3, those are twin scroll turbos with two separate exhaust paths through the hot side of the turbo.
The LM450 merges the exhaust pulses as they start to work their way to the turbine wheel, and that allows for a much smaller exhaust housing which is why the spool characteristics are so much more favorable from our experience.
I hope this helps and Stay Tuned!
@@FlatironsTuning Very clear! Thank you for you information~!
Hey great video, been looking for info on this turbo and it's been really hard to find. What's your experience been with it since you made this video? I have one waiting to go on the car soon and i wanted to know what to expect in terms of performance from racing on small tracks to daily driving. Thanks!
No problem at all! We also did a video on the MDX555-400 which has been working out really well for a few customers.
We really love the Turbo Dynamics turbos!
Thanks for watching and Stay Tuned!
@@FlatironsTuning that's great, and thanks for your reply...how was the spool and power band with the lm450 especially coming from a VF37?
@@jaynjuguna Take a look at this point in the video:
th-cam.com/video/c-ZfPk75Tjg/w-d-xo.html
Comparative dyno charts of all 3 turbos.
From driving the car, the VF37 spools up early, and has a very wide usable power band, and it feels very linear above say 3,700 rpm. the LM450 comes on just a bit later, but pulls much harder, and has a similar amount of usable power.
A bit more pull out of corners on the VF37, but way more top end and overall power from the LM450.
Hope that helps, and Stay Tuned!
@@FlatironsTuning yes it does! Thank you very much!