6100, TTspec, T2, Baja Truck only thread

51rcr

Well-Known Member
Posts
817
Reaction
491
Finally got my truck done. I have had it out a handful of times and it is scary fast. I am looking forward to seeing how we do against teams with unlimited budgets. I love this class because it is a driver class and we all have the same HP. I still have the 430HP engine in it and I am tempted to run it against 525hp engines. We ran a 1450 Ranger in Class 7 for years. We had 203hp at the wheels racing side by side against trucks with twice the HP. I built the truck to be inexpensive to prep and fun to drive. See you all at the finish line because I know I will be there, will you ? JK My dad always told me, you must finish the race first, in order to win the race.
nice truck how long it take you?
 

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
We are getting close to ready for KOH Desert challenge. Dyno went amazing and new body is on and looks sweet. We made a lot of aero changes and tweaks with this new Fiberwerx body. Cant wait to get it on the dry lake bed and see what she can do. Getting excited for KOH

Mike
IMG_1177.jpeg

860B0BE9-ADC5-45C8-9525-1706619DD873.jpeg
 

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
No. Won’t get them for KOH. The TT guys will but not us lowly spec guys. Haha

That being said I think the current MT might be better for this KOH course anyway for us spec guys. Lots of sand and loose gravel that the tread design of the MT’s love.

The new Toyo race tire design is closer to the BFG with a little more slip and longer lasting. We don’t have a wear issue and want softer for the rock sections.

Mike
 

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
Yeah we are excited for the rain to come. Races are much more fun and safe when dust is reduced. And it makes passing easier for sure.

I think our gearing is perfect. Especially for our torque curve. We need to keep our RPMs lower than a LS3 and already have a tad bit high gear.

Mike
 

51rcr

Well-Known Member
Posts
817
Reaction
491
my supposed good trans was bad. put a stock in so it can go. if cant get the rebuild today it will come with another truck and get put in down there.
 

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
Not sure who you use for trans work but Maximum transmissions in Hysperia is amazing and can knock stuff out super fast. He has all the parts in stock. We went testing once in Jean and our trans was screwed. Went to Maximum and they got it fixed and back in the truck the same day.

Also we have a decent fresh built trans as a back up that you are welcome to use. It’s nothing super special but will hold up for sure. It has all race parts and billet valve body. Stock case and gear ratio. It’s set up for an underdrive.

Let me know how we can help. Even if you just need help down there swapping it out let us help.

Mike
 

51rcr

Well-Known Member
Posts
817
Reaction
491
Not sure who you use for trans work but Maximum transmissions in Hysperia is amazing and can knock stuff out super fast. He has all the parts in stock. We went testing once in Jean and our trans was screwed. Went to Maximum and they got it fixed and back in the truck the same day.

Also we have a decent fresh built trans as a back up that you are welcome to use. It’s nothing super special but will hold up for sure. It has all race parts and billet valve body. Stock case and gear ratio. It’s set up for an underdrive.

Let me know how we can help. Even if you just need help down there swapping it out let us help.

Mike
Thanks for the offer. Mine is standard fixed yoke. This was a used trans. Local guy only had stock parts in stock so a buddy in So Cal got me set up i think. If not i got a trans that works in it. Its so stock it has a vacuum line. haha Stop and say hi. same for anyone else. garage 108 prp place. I dont have any big secrets to hide.
 

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
Haha when we got our truck the trans had a vacuum line also. Was told it was a race trans and come to find out it was bone stock, well it had a larger pan and some crappy way to make it manual. Then began a deep dive into racing transmissions and now I know way more than I every wanted to about them. We could not afford to just order a top end trans. Was really fortunate to find Chris at Maximum. He was able to upgrade us slowly and not break the bank.

I will come say hi. We are in H117 in the heights if you need anything or just want to chat. We also have a open shop and camp. Not sure how to find our spot as it’s not on any maps but I think we will figure it out. Haha.

We still have so much left to do. Our punch list is getting longer not shorter. Haha

Mike
 

Tube ride

Well-Known Member
Posts
728
Reaction
1,030
Moving a set of axles from apple valley to Temecula tomorrow going to take the 247 over to get a look. Will have 20’ of open trailer if someone needs anything hauled .
 

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
Still have lots of work to do. We leave in less than 24 hours.

new 2021 Look came out pretty sweet. Still need to mount front lights and valance. The poor wrap guy got no time and worked all night last night. No matter what I do we seem to scramble at the last hour. So dumb. Haha

Mike
 

Attachments

  • C58ACAEE-752E-47E6-9C22-1F5214078853.jpeg
    C58ACAEE-752E-47E6-9C22-1F5214078853.jpeg
    3.9 MB · Views: 131
  • FE19A8CE-46AB-48B6-8DB3-6C93AC2A043B.jpeg
    FE19A8CE-46AB-48B6-8DB3-6C93AC2A043B.jpeg
    1.9 MB · Views: 132

Lucho

Well-Known Member
Posts
2,724
Reaction
297
Like to invite all you to a great race in February. It is the PURE HI-DEZ OFF-ROAD DEZERT SERIES, right where everything started over 50 years ago, in our beautiful Cal-City Dezert and at our BAR-Bs RANCH, just 10 minutes East from Cal City Blvd. - 138th & Proctor Blvd.
We have your class featured in this 250-mile, 6-lap race, SATURDAY, FEBRUARY 27, 2021. Go to this link to get all details, flyer and entry form: Link: Alta Vista Events - OFF-ROAD & DIRT RACING - 2021 PURE HI-DEZ OFF-ROAD SERIES


Alta Vista Events - OFF-ROAD & DIRT RACING - 2021 PURE HI-DEZ OFF-ROAD SERIES

New page
www.averacing.com

www.averacing.com



NOTE: If there are 10 or more cars in your class you run on your own and not combined.
Entry is only $450.00 with $200.00 of that going to your Payback Purse, and it is Fun-to-the- Max. Course easily accessible for assistance.
 

Attachments

  • 21-PURE_HI_DEZ-#3-flyer-Feb6.jpg
    21-PURE_HI_DEZ-#3-flyer-Feb6.jpg
    3.9 MB · Views: 54
  • 21-PURE-HI-DEZ-FEB27-ENTRY#2--FEB6.jpg
    21-PURE-HI-DEZ-FEB27-ENTRY#2--FEB6.jpg
    2 MB · Views: 41
Last edited:

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
Getting ready for SF250 and topic of brakes came up. Actually when we had the Stig drive our truck he said the brakes sucked. But they were super worn down after KOH and had not been rebuilt for awhile. So we figured they just need to be refreshed. got all the parts to freshen them up and have done so. I posted a IG video of our brakes being rebuilt and someone mentioned hey you need 6 piston calipers. We only have 4 piston. I know many of you will say duh but its not that simple.

When we got the truck we ran 37" tires and our brakes were amazing. So we always just figured they were good. But when we upgraded to 40" tires they brakes have not been as good. We keep thinking its a service issue but it may be a design and they are just too weak.

How may Spec teams upgraded their brakes when they went to larger tires?

In a video game like Dirt I would need upgrade engine, tires, and suspension to only leave brakes alone. But I did with our truck. Haha Its sometimes the obvious things that get you.

Anyway just a thought and curios.


BTW- We are going thru rotors really fast. We only get 1000 race miles out of a rotor. We went to to s softer pad which helps and actually has better braking. But what are you guys seeing for rotor usage?

Mike
 

vinnie909

Well-Known Member
Posts
70
Reaction
67
Both my trucks eat rotors as well, both trucks stop on a dime tho so can’t complain, took many years to get my ranger to stop on a dime. Jamar 6piston on both trucks up until recently, On my Spec truck we just recently up-dated the front suspension, went with ID Design, they also talked me into making the switch to the Brembo package, breaks/rotor/calipers/masters etc. I’ll let ya know how much better it performs after testing, stuff wasn’t cheap by any means but I would hate to wreck for lack of stopping power
 

Ikaika

Well-Known Member
Posts
60
Reaction
123
Getting ready for SF250 and topic of brakes came up. Actually when we had the Stig drive our truck he said the brakes sucked. But they were super worn down after KOH and had not been rebuilt for awhile. So we figured they just need to be refreshed. got all the parts to freshen them up and have done so. I posted a IG video of our brakes being rebuilt and someone mentioned hey you need 6 piston calipers. We only have 4 piston. I know many of you will say duh but its not that simple.

When we got the truck we ran 37" tires and our brakes were amazing. So we always just figured they were good. But when we upgraded to 40" tires they brakes have not been as good. We keep thinking its a service issue but it may be a design and they are just too weak.

How may Spec teams upgraded their brakes when they went to larger tires?

In a video game like Dirt I would need upgrade engine, tires, and suspension to only leave brakes alone. But I did with our truck. Haha Its sometimes the obvious things that get you.

Anyway just a thought and curios.


BTW- We are going thru rotors really fast. We only get 1000 race miles out of a rotor. We went to to s softer pad which helps and actually has better braking. But what are you guys seeing for rotor usage?

Mike
Mike,

When BITD went and changed the 6100 rules, I knew it was going to be a challenge for teams to upgrade each older vehicle to match / meet what the new rules allowed in its entirety.

If you had a 6100 truck designed for the old 6100 rule book ( as you did ), here is my take on what the minimum change in design would entail to complete the "upgrade" rules to the newer specs.

~ New approved engine package
~ New larger tire package
~ New brake package for the larger & heavier tires ( may include new plumbing to get all new items to work & fit well )
~ New steering rack & possible servo torsion bar for the larger tires
~ Upgrade or replacement of the front suspension uprights & tie rod mounting to produce better steering leverage
~ Underdrive unit
~ New ring & pinion ratios to accommodate the underdrive
~ New driveshaft
~ New shock absorber ( coil over & bypass ) revalve & respring ( if the old units are of adequate diameter & bypass tube count....otherwise, replacement of the entire shock package for the larger tires )

~ Possible transmission gear ratio change
~ Possible torsion bar changes ( anti-sway bar )
~ Possible chassis changes to accommodate the added stresses & loads from the torque being moved from the rear axle to the chassis via underdrive addition
~ Possible front suspension arm upgrades for additional strength
~ Possible pivot bolt upgrade

While in the design phase of our build ( which was done before the rule change ), we looked forward and included many aspects needed to upgrade our engine, suspension, tire, driveline packaging in the event that we wanted to move up in class,......so we essentially designed and built a TT chassis to accommodate larger tires, more HP etc...!
A bit overkill for the 6100 class in the old rule configuration, but we did what we did for the reasoning we had......as it turns out, our build will only change slightly in terms of simply obtaining the newer approved engine, underdrive and tire package.....all other aspects were addressed in the initial CAD of our chassis.

For some teams, this turned out to be nearly a complete redesign / rebuild of what was otherwise a good running unit !

We chose the "build" route over they "buy" route for several reasons......some of which are that we own the CAD files and can easily produce spares in any quantity as needed without chasing down files,.....we have the ability to locate ANY tube / plate etc...on our CAD that needs attention and do repairs / replacements accurately,.....and most importantly, we have the ability to create future chassis or sell copies of our CAD to recover portions of our initial output expense.

My apologies for the long winded reply......you're not the only guy who tends to "share" too much !

Summary to your post regarding brakes,..........my assumption is that if the running 6100 units "pre" rule change did not have good 6 piston calipers and the proper master cylinder package to match, there more than likely would be a brake package change on the horizon.

Cheers !
 

MTPyle

Well-Known Member
Posts
1,739
Reaction
3,734
Great stuff. Thanks for the detailed post.

We did everything on your list expect brakes calipers ans rotors, literally everything but that. Haha. We did make other changes to the brakes like pedal, master cyl, and even added pressure sensors for feedback of bias.

yes I think a upgrade is in our future.

the rest of the truck is dialed. Really proud and impressed with how our truck handled the abuse from KOH.

Mike
 

51rcr

Well-Known Member
Posts
817
Reaction
491
Great stuff. Thanks for the detailed post.

We did everything on your list expect brakes calipers ans rotors, literally everything but that. Haha. We did make other changes to the brakes like pedal, master cyl, and even added pressure sensors for feedback of bias.

yes I think a upgrade is in our future.

the rest of the truck is dialed. Really proud and impressed with how our truck handled the abuse from KOH.

Mike
Have a true brake person run your numbers. Or you can really get deep into some math. It can really get crazy. Clamping force and pad size which relates to Pad wear vs rotor wear and grip. Light rotor vs heavy, vented vs not vented. Caliper flex. How do you use them ect.
Real brake specialist are fun to talk to. It isnt always what you think it is or should be sometimes. You will enjoy learning it. Will be fun to hear what you come up with.
Good Luck.
 

Dezert00Taco

Well-Known Member
Posts
240
Reaction
63
Getting ready for SF250 and topic of brakes came up. Actually when we had the Stig drive our truck he said the brakes sucked. But they were super worn down after KOH and had not been rebuilt for awhile. So we figured they just need to be refreshed. got all the parts to freshen them up and have done so. I posted a IG video of our brakes being rebuilt and someone mentioned hey you need 6 piston calipers. We only have 4 piston. I know many of you will say duh but its not that simple.

When we got the truck we ran 37" tires and our brakes were amazing. So we always just figured they were good. But when we upgraded to 40" tires they brakes have not been as good. We keep thinking its a service issue but it may be a design and they are just too weak.

How may Spec teams upgraded their brakes when they went to larger tires?

In a video game like Dirt I would need upgrade engine, tires, and suspension to only leave brakes alone. But I did with our truck. Haha Its sometimes the obvious things that get you.

Anyway just a thought and curios.


BTW- We are going thru rotors really fast. We only get 1000 race miles out of a rotor. We went to to s softer pad which helps and actually has better braking. But what are you guys seeing for rotor usage?

Mike
What calipers do you guy run? what is the piston size on them? there is a lot of math that goes into a breaking system. I feel like brakes are other overlooked but in the end can be one of the best performance gains there is to a race car. We set up one of our 6100's on 4 piston calipers but each piston is 2" they are huge! Just because you have 6 small pistons doesn't really mean your brakes will work better than the 4 pistons if the piston surface area isn't greater than the 4 pistons. But you also need to figure in pedal ratio and master sizes.
 
Top