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71 roadrunner srt 8
Posted By: hemibeep
71 roadrunner srt 8 - 01/22/10 10:31 PM
I just wanted to 'not' do another restoration. It will run 6.1 hemi with 518 od tranny. wilwoods on all four corners with alterkation front suspension. srt magnum wheels and srt challenger seats. This is a fun challenge.
Posted By: Hotwheelsjr
Re: 71 roadrunner srt 8 - 01/23/10 12:33 AM
Posted By: Anonymous
Re: 71 roadrunner srt 8 - 01/23/10 01:03 AM
Posted By: sogtx
Re: 71 roadrunner srt 8 - 02/03/10 11:16 PM
awaiting your progress--- pics those are big wheels
Posted By: gygeneral
Re: 71 roadrunner srt 8 - 02/05/10 06:45 PM
Can't wait to see more. After I'm done doing my current 71RR, this is what I would also like to do. Please post your progress.
Posted By: SRT6776
Re: 71 roadrunner srt 8 - 02/06/10 09:17 PM
Cool project!
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 02/07/10 01:22 AM
early pic, it is much further along now.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 02/07/10 01:36 AM
underneath.
Posted By: Anonymous
Re: 71 roadrunner srt 8 - 02/07/10 04:15 AM
Looking very nice! keep the pics coming.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 05/07/10 12:18 AM
a little more progress
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 05/07/10 12:20 AM
front shot. starting the driving and break-in period.
Posted By: moparpollack
Re: 71 roadrunner srt 8 - 05/07/10 12:57 AM
Love the color! How did you wire the hemi?
Posted By: jrwoodjoe
Re: 71 roadrunner srt 8 - 05/07/10 04:31 PM
That thing ROCKS!
You're doing an Awesome job!
Posted By: Sasquatch4406
Re: 71 roadrunner srt 8 - 05/07/10 07:05 PM
wow what color is that? i love it!
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 05/07/10 09:42 PM
the wiring is hotwire auto.com, and they flash a computer from ram to run the motor. The color is F3 frost green metallic.
thanks for the props...
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 09/12/10 12:51 PM
A little more progress. Starting with a few base coats
Posted By: bigsexy440
Re: 71 roadrunner srt 8 - 10/07/10 03:40 PM
Wow, more of this please...
Posted By: ryangtogtx
Re: 71 roadrunner srt 8 - 10/08/10 06:37 PM
Very cool. Did you find a wrecked SRT8 for the running gear and wheels?
Posted By: BloFish
Re: 71 roadrunner srt 8 - 10/08/10 11:15 PM
Quote:
Wow, more of this please...
Yes more
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 10/09/10 06:35 PM
pre buff, getting closer!
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 10/09/10 06:37 PM
Front end shot.
Posted By: moopa
Re: 71 roadrunner srt 8 - 10/10/10 02:23 AM
Stunning! Making me re-think traditional power for my Satellite....I'm lovin this!Great job.
Mark
Posted By: SRT6776
Re: 71 roadrunner srt 8 - 10/11/10 02:00 AM
Car looks similar in size to a new Challenger. Great job, loving the updates!
Posted By: 71rm23
Re: 71 roadrunner srt 8 - 10/11/10 02:49 AM
Is there any updates to the rear suspension? How about for the tranny location? I'm thinking of doing the same to my 71, so any info will be appreciated. GREAT job so far
Posted By: UCUDANT
Re: 71 roadrunner srt 8 - 10/11/10 03:21 AM
Quote:
Car looks similar in size to a new Challenger. Great job, loving the updates!
Yeah but weighs allot less LOL
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 10/11/10 12:53 PM
The car is actually smaller than a new challenger.
I had a choice of buying new chally, or building this car. The runner should be cheaper and will definately be different. Yes, weighs less too.
The tranny required a bunch of floor mods to tuck up and in to get the correct pinion angle. I had to make tranny crossmember. This may be different with a non-alterkation setup, but I am not sure. Rear susupension is stock with 1/2" lowering block and rear sway bar.
I will also post pics of srt chally seats, they required floor mods, as they sit very high with stock floor "hump" near the outside of floor pans.
Interior is really the last challenge, but I will drive as long as there is seats and seatbelt!
Posted By: AZ-Nick
Re: 71 roadrunner srt 8 - 10/12/10 12:50 AM
Quote:
The car is actually smaller than a new challenger.
Dave you have a beautiful car, I have been following your build.....
No matter how many times I tell someone the 71 B is smaller they just do not believe it until I show them this picture!
Posted By: bigsexy440
Re: 71 roadrunner srt 8 - 10/12/10 02:47 PM
LOL! That picture is AMAZING..hahaha.
I love this build sooo much. This is almost exactly what I want to do with my '72 Charger, although I am going with 17 & 18" Torque Thrusts for some bignlittle action.
Posted By: dangina
Re: 71 roadrunner srt 8 - 10/13/10 01:49 AM
I'm attempting the same build this winter (except 5.7 swap)was wondering what ecu and harness choice did you use for the swap? painless? megasquirt? mopar? and does your speedo work with the new tranny setup?
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 10/13/10 02:47 AM
the wiring is hotwire auto.com, and they flash a computer from ram to run the motor. I am using autometer guages including speedo. It is the last guage to sort out.
Posted By: dangina
Re: 71 roadrunner srt 8 - 10/14/10 01:27 AM
Quote:
the wiring is hotwire auto.com, and they flash a computer from ram to run the motor. I am using autometer guages including speedo. It is the last guage to sort out.
was it a plug and play wiring setup using the old fuse block? and are you running the stock fuel injection system or the msd 6?
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 10/14/10 01:46 AM
hotwire setup is 4 wires. car still uses original fuse block. using stock F.I. and stock 6.1 sensors.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 02/06/11 05:30 PM
only a few items left.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 02/06/11 05:31 PM
interior is last to be installed, and then let the fun begin...
Posted By: Desmond
Re: 71 roadrunner srt 8 - 02/06/11 05:34 PM
Great job!
Posted By: gygeneral
Re: 71 roadrunner srt 8 - 02/06/11 06:15 PM
Wow..nice job, keep the pics coming
Posted By: 71DemonRON
Re: 71 roadrunner srt 8 - 02/06/11 07:07 PM
Very nice build !
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 04/30/11 02:10 PM
interior shot
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 04/30/11 02:11 PM
engine shot
Posted By: 808CUDA
Re: 71 roadrunner srt 8 - 04/30/11 11:18 PM
AWESOME, AWESOME Build! Looks outstanding!
How do you like the power? Great isn't it? I did the same buid on a '71 Cuda and LOVE the power these engines make!
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 05/01/11 01:21 AM
I found a fantastic
tuner....Mike@ostdyno. This thing runs like a bat out of heck. quiet and smooth, until you hit the go pedal....
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 09/18/11 09:00 PM
I decided to change the wheels. The late model wheels had too much inset in the front.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 09/18/11 09:01 PM
from the front..
Posted By: cdp
Re: 71 roadrunner srt 8 - 09/18/11 09:04 PM
Awesome...whats the wheel/tire size/combo?
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 09/18/11 09:21 PM
17x8 front. 18 x 9.5 rear. rear tires are the new mickey thompson s/r 28x12x18.
Posted By: MuuMuu101
Re: 71 roadrunner srt 8 - 09/19/11 03:51 AM
Are those Coy's?
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 09/19/11 08:35 AM
The wheels are actually summit legend wheels. not terribly expensive.
Posted By: johnscudashop
Re: 71 roadrunner srt 8 - 09/19/11 12:57 PM
Awesome project!!! I love what you have done.. I bet it got lots of power and decent fuel mileage to boot!!
Posted By: rrp92
Re: 71 roadrunner srt 8 - 09/24/11 10:03 PM
Are your high beams painted or are they amber glass?
Posted By: moparbob71
Re: 71 roadrunner srt 8 - 09/25/11 12:44 AM
Wow, I really like that. It's look alot cooler with the 72 grill and the 6.1 fits perfectly. Great job and post more pics please
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 09/26/11 12:00 AM
the high beams are "gold anodize" paint. works like a charm.
yes car does run great, can smoke the tires, drives quiet, over 20mpg, and looks pretty cool---at least to me. I am still tuning, and working out little bugs, but isn't that what old cars are all about?
Posted By: ramairthree
Re: 71 roadrunner srt 8 - 11/11/11 08:07 PM
doubles thumbs up and a hats off from me.
I thought I was all high tech think of getting a pulled 360 magnum with all accesories to bolt to my 904 in the 74 RR.
And was considering saving for a big buck 5.7 Hemi from a salvage to my 904,
or going whole hog with a pulled 5.7 an OD tranny.
Then wham, you hit it out of the park with the full 6.1 and tranny transplant.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 03/10/12 02:18 PM
Just completed the last round of tuning, via email. Sadly, with job changes, this car may have to be sold.
Posted By: moopa
Re: 71 roadrunner srt 8 - 03/11/12 06:58 PM
That car is an inspiration to me. My absolute favorite body style of all Mopars( I've got 3 myself!)If mine turned out 1/2 as nice, I'd be ecstatic.It's too bad if you are forced to sell, but after all it's only a car, and once you get past the rough spot, there will be others waiting for you.
Good luck, and I wish I could buy it!
Mark
Posted By: ramman5600
Re: 71 roadrunner srt 8 - 03/11/12 10:07 PM
Quote:
Just completed the last round of tuning, via email. Sadly, with job changes, this car may have to be sold.
Why so much tuning? You mentioned Hotwire doing the computer then a previous post with a Mike doing some tuning and now "the last round". Can you expand as to why?
Thanks
-C
If I could sell a few of my other toys I would pick this one up in a minute - great job.
Hemibeep that's gotta be one of the all-time coolest Mopar builds I've ever seen.Man I like that car and I was always a 70 RR/GTX body style guy but that car of yours looks so cool!! Congrats on a great build...cheers
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 03/13/12 12:07 AM
thanks for the "props". as for the last tuning, I installed a wide band o2, then smoked the trinity tuner in different car, got the tuner back, and having mike look at the full blown data to final tweak. This will raise rev limit, and fine tune A/F at all RPMs. Might even setup a street tune and a track tune.... possibilities are endless with this setup.
Posted By: ramman5600
Re: 71 roadrunner srt 8 - 03/13/12 01:10 AM
Quote:
thanks for the "props". as for the last tuning, I installed a wide band o2, then smoked the trinity tuner in different car, got the tuner back, and having mike look at the full blown data to final tweak. This will raise rev limit, and fine tune A/F at all RPMs. Might even setup a street tune and a track tune.... possibilities are endless with this setup.
How well did it run on the initial tune from Hotwire? What have been the benefits of the additional tunes (MPG? obviously you mentioned the rev limiter, power increase?) thanks as I am doing the 6.1 with Hotwire and factory PCM using Intune.
-C
Posted By: dangina
Re: 71 roadrunner srt 8 - 03/13/12 01:57 AM
Quote:
Just completed the last round of tuning, via email. Sadly, with job changes, this car may have to be sold.
no! this is a great build! love the unique color/stripe combo
Posted By: ramman5600
Re: 71 roadrunner srt 8 - 03/13/12 03:30 AM
What exhaust is that on the 6.1?
-C
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 03/13/12 11:04 AM
initial tune was not good. it is a 5.7 truck, man. tranny controller. It actually ran rich, since it was adding fuel for 5.7 injectors. Yes, Mike has my power turned down until I installed wideband o2. less timing, lower rev limiter, etc.
It can be tuned for any occasion.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 03/13/12 11:04 AM
exhuast is TTI from front to back.
Posted By: ramman5600
Re: 71 roadrunner srt 8 - 03/14/12 02:46 AM
Quote:
exhaust is TTI from front to back.
2.5" or 3"? Also did you mean the tune that was on the computer before the initial re-flash to 6.1 specs or even after the first re-flash from hotwire?
-C
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 03/14/12 11:05 AM
exhaust is 2.5". First flash from hotwire did not work well. they may have made changes since then, they were very helpful and their harness was a true 4 wire hookup.
Mike@ostdyno.com is the correct person to use for tuning...
Posted By: 70B5Cuda
Re: 71 roadrunner srt 8 - 03/14/12 08:46 PM
What did it take to get the Challenger SRT8 seats to fit?
Posted By: ramman5600
Re: 71 roadrunner srt 8 - 03/16/12 12:49 AM
Quote:
exhaust is 2.5". First flash from hotwire did not work well. they may have made changes since then, they were very helpful and their harness was a true 4 wire hookup. Mike@ostdyno.com is the correct person to use for tuning...
Final questions as I appreciate hearing from someone who has been there done that. Do you think the 2.5" is adequate as I have been told that it is on the edge for this engine and especially if I plan to supercharge some day. Secondly, what was the process and cost for Mike's tuning if you don't mind sharing? Thanks
-C
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 03/16/12 11:07 AM
on the seats, It is major surgery on the floors. You have to remove the "humps" where the floor raises near the rocker. Remove adapters from new seats and bolt down. The rear seats are about 3" too narrow. I had to "build up" a filler using expanding foam wrapped in black interior carpet, and yes, the rear seats do fold down, so you can pass through to the trunk.
I feel 2.5" TTI is sufficient. The motor is 370 cu in. Mikes tuning cost, I do not recall exactly. I pucrhased the diablo trinity from him, and that included some tunning. Just email him at
mike@ostdyno.com thanks
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 03/16/12 11:11 AM
tuning process.
You will have an OBD port, just like a new car. Plug in your tuner, request a data log with specific parameters. Go for a drive, mixing stop/start, hard accel, etc. Then save the file. Email to Mike. He looks at data. Then sends back a new program to load into car. Work really neat.
thanks
Posted By: CrAzYMoPaRGuY
Re: 71 roadrunner srt 8 - 03/17/12 07:16 AM
Gorgeous build!
Posted By: sunroofgtx
Re: 71 roadrunner srt 8 - 05/29/12 09:01 PM
Awesome build. I had to read it all again. I'd almost want to trade my 71 Sunroof GTX with a Hemi for this. Might be having the Sunroof up on the blocks for sale at Carlisle this year. Just saw my friends '12 SRT Challenger in white !! Beautiful. I tried trading it in for a NEW AAR Challenger , and have them install a turbo, but it was a no-go. Dang.
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 06/21/12 12:20 AM
wrapping up the final loose ends. car is def being sold. I hope someone from here would be able to make this car their own.
Down to wiper motor rebuild and ac controls corrected.
thanks
Dave
Posted By: sogtx
Re: 71 roadrunner srt 8 - 06/21/12 01:49 AM
Does i really have to go or did you find a new money pit ?
Posted By: hemibeep
Re: 71 roadrunner srt 8 - 06/30/12 08:22 PM
long story, yes...it has to go....the right person will really like the selling price!!
Posted By: biff426
Re: 71 roadrunner srt 8 - 01/17/13 03:41 AM
This car just sold at barrett jackson for $77,000 are people on crack or what I just don't get it.
Posted By: carcrazyguy
Re: 71 roadrunner srt 8 - 01/17/13 04:25 AM
Quote:
This car just sold at barrett jackson for $77,000 are people on crack or what I just don't get it.
I am sure the seller is..very 
!! However I wonder how the buyer might feel when they start looking around the "interweb" and sees how much less the car was advertised for. 
Posted By: moparmike1
Re: 71 roadrunner srt 8 - 01/17/13 11:36 PM
Quote:
This car just sold at barrett jackson for $77,000 are people on crack or what I just don't get it.
As long as the seller got more than what he was asking six months ago, who cares? From the build pictures it looks like it was done top notch.
I'll have to check my DVR tonight.
Mike.
Posted By: sogtx
Re: 71 roadrunner srt 8 - 01/18/13 04:14 AM
i really wanted that car when it was for sale
