2018 Jeep Trackhawk
Discussion
I've only had the car for 3 days this month due to downtime with tuning/adding the new blower and I had to drop it off on Monday for it be trucked down to Melbourne for the Bullrush rally. I'll pick it up Tuesday and i'll be doing 1,500km via a few awesome stops and finishing in Sydney. Then back on a truck to Queensland.
I've bought the GoPro suction cap mount so hopefully I'll be able to grab some decent footage whilst away. The first stop when it's back home is a trip to the strip to record a new PB.
With the downtime, I've been looking at what next could be done. My goal is still to keep it as OEM looking as possible (engine wise) and keep it as a daily driver. My eyes have led me to a 426 stroker short block with fully forged internals. The last thing I want to do is grenade the engine so with a much stronger bottom end, I could up the boost and be making close to a 1,000 BHP and be reliable (if there is such a thing?). I've also enquired about a strengthened ZF gearbox. Interestingly, the Trackhawk shares the same box as the Rolls Royce Ghost and Dawn.
Will it be total overkill for my needs? More than likely! Do I want to be able to say I have a 7.0L stroked Demon supercharged engine? Hell yes.
The carbon fibre wheel turned out pretty good I think..
https://www.instagram.com/p/BpIr5ZfF2wI/?taken-by=...
I've bought the GoPro suction cap mount so hopefully I'll be able to grab some decent footage whilst away. The first stop when it's back home is a trip to the strip to record a new PB.
With the downtime, I've been looking at what next could be done. My goal is still to keep it as OEM looking as possible (engine wise) and keep it as a daily driver. My eyes have led me to a 426 stroker short block with fully forged internals. The last thing I want to do is grenade the engine so with a much stronger bottom end, I could up the boost and be making close to a 1,000 BHP and be reliable (if there is such a thing?). I've also enquired about a strengthened ZF gearbox. Interestingly, the Trackhawk shares the same box as the Rolls Royce Ghost and Dawn.
Will it be total overkill for my needs? More than likely! Do I want to be able to say I have a 7.0L stroked Demon supercharged engine? Hell yes.
The carbon fibre wheel turned out pretty good I think..
https://www.instagram.com/p/BpIr5ZfF2wI/?taken-by=...
Swampy1982 said:
Any updates?
Just arrived home from a truly memorable week driving over 1,700km in 4 days through some of Australia's greatest roads. 40 supercars in convoy, some breahtaking scenery, Bathurst racetrack, Wakefield racetrack, a new nightclub every night and an accompanying hangover every morning. The media team will be putting together a video over the next week or two and I'll share here once done.
In terms of the hawk, it performed flawlessly. I managed to out do an Aventador for the noise prize, haha. A highlight was driving up to Falls Creek in Victoria, an epic 3 hour sprint up a very twisty mountain and being pleasantly surprised at how well it could hustle around the corners. Easily the hardest I've ever driven it on public roads.
I'm off to the 1/4 mile on Friday night to set a new time, hopefully can crack into the 10's.
A couple of pics:
https://www.instagram.com/p/BpoNHFpFO5t/
https://www.instagram.com/p/BplyNSjl-ES/
https://www.instagram.com/p/BpnbPKzjCgY/
https://www.instagram.com/p/BptmhPWjUJY/
I've bought a little GPS unit called Dragy. Most tests say it's close enough to VBOX but at less than half the price I thought I'd try it.
Finding it hard to find decent, factual data on some cars I'd like to bench it against. 0-125 MPH (0-200KM/H) in 10.78 or 10.55 with 1ft rollout seems pretty solid for a 2,400kg rig.
Worth noting, with refinement to the tune the actual 0-100 (62MPH) isn't that much quicker than stock (2/10ths) but it just hauls from there. Off to the official 1/4 mile tomorrow night to finish off these Pirelli's and then onto some decent PS4 Michellins which should net 0.1-0.2 in the 1/4 mile.
Contemplating whether to get a set of 20" drag radials to really get some hook.
Finding it hard to find decent, factual data on some cars I'd like to bench it against. 0-125 MPH (0-200KM/H) in 10.78 or 10.55 with 1ft rollout seems pretty solid for a 2,400kg rig.
Worth noting, with refinement to the tune the actual 0-100 (62MPH) isn't that much quicker than stock (2/10ths) but it just hauls from there. Off to the official 1/4 mile tomorrow night to finish off these Pirelli's and then onto some decent PS4 Michellins which should net 0.1-0.2 in the 1/4 mile.
Contemplating whether to get a set of 20" drag radials to really get some hook.
New supersports seem to be working, knocked a 1/10th off the ET in warmer ambient temps. Off to the track on Saturday to confirm. I'll also be adding some race fuel for some extra power as we can increase timing which generates more heat.
Given the ridiculous cost of race fuel compared to the States, I'm converting to E85 for race days. New injectors and a boost a pump should add a further 50-75 BHP for race days. Tipping $500 for 40L of MS109 is simply daft when the cost of new injectors and the BAP are just over $2,300.
Also ordered a set of forgestar 20" lightweight wheels and will be receiving them some time in February and a set of Mickey Thompson Street ETs will be going on. They should provide strong traction and I'll be watching closely how long the rear end lasts.
Given the ridiculous cost of race fuel compared to the States, I'm converting to E85 for race days. New injectors and a boost a pump should add a further 50-75 BHP for race days. Tipping $500 for 40L of MS109 is simply daft when the cost of new injectors and the BAP are just over $2,300.
Also ordered a set of forgestar 20" lightweight wheels and will be receiving them some time in February and a set of Mickey Thompson Street ETs will be going on. They should provide strong traction and I'll be watching closely how long the rear end lasts.
AmosMoses said:
Epic, keep up the good work man!
If the rear end hold up what do you reckon you'll see? Low to mid 10s?
It should be good for very deep 10s as a few guys are heading into the 9s with stock driveshafts and axles.If the rear end hold up what do you reckon you'll see? Low to mid 10s?
I know of one failure of the rear axle but that is due to him fitting 17" weld rear wheels and M/T slicks and simply generating too much grip.
I'll wait and see what the 20" drag radials do and the lower pulley combined with E85 and then assess goals from there.
Super cool temps for summer at the moment, 22c tonight (71F) and a cool breeze. I'm heading to the track tomorrow night as it's going to be similar conditions and it'll be my best chance for a few months to get my new PB.
So I went for a test run and nailed some PBs. Attached are the performance pages results (ignore the 60ft time that was set whilst wheelspinning like crazy on old tyres).
Attached are the dragy GPS results also for the 1/4 mile and 0-130 mph. I think what I'm most pleased with is how much more effective the Michelin super sports are and the 60-130mph time of 8.58s. This compares favourably to the Urus that Brooks recently tested and even the tuned one. Hoping the switch to E85 will net another tenth or two. Roll on tomorrow night!
So I went for a test run and nailed some PBs. Attached are the performance pages results (ignore the 60ft time that was set whilst wheelspinning like crazy on old tyres).
Attached are the dragy GPS results also for the 1/4 mile and 0-130 mph. I think what I'm most pleased with is how much more effective the Michelin super sports are and the 60-130mph time of 8.58s. This compares favourably to the Urus that Brooks recently tested and even the tuned one. Hoping the switch to E85 will net another tenth or two. Roll on tomorrow night!
I managed to achieve the 10 second barrier at the track to make it official despite less than ideal track conditions.
My tuner is adamant that the simple switch to E85 (bigger injectors and a boost a pump) will net a further 0.1-0.2 off the E.T. Add in the stickier Mickey Thompson's coming in February and I'll be looking at a 10.6x car. And then I can look forward to cooler conditions in the autumn and winter to get a sub 10.5x time. Hugely impressed with it and can't wait to keep pushing.
And here's a hot start up with valves open. Videos don't ever do it justice but it sounds mean.
https://drive.google.com/open?id=1BWNM8tCK6WFnNnJD...
And to finish, probably the best pic I've seen of the Jeep:
My tuner is adamant that the simple switch to E85 (bigger injectors and a boost a pump) will net a further 0.1-0.2 off the E.T. Add in the stickier Mickey Thompson's coming in February and I'll be looking at a 10.6x car. And then I can look forward to cooler conditions in the autumn and winter to get a sub 10.5x time. Hugely impressed with it and can't wait to keep pushing.
And here's a hot start up with valves open. Videos don't ever do it justice but it sounds mean.
https://drive.google.com/open?id=1BWNM8tCK6WFnNnJD...
And to finish, probably the best pic I've seen of the Jeep:
Manmoths said:
I've just read the whole thread - incredible!
I (think) that I remember you from your Cliosport days too? Dubai182? My username on there was/is Christopher. Apologies if I've just completely confused you, but I figured there are not many 182s in Dubai!
Love the way this is going, keep it up!
Hi mate, yep that was me. Loved that car.I (think) that I remember you from your Cliosport days too? Dubai182? My username on there was/is Christopher. Apologies if I've just completely confused you, but I figured there are not many 182s in Dubai!
Love the way this is going, keep it up!
The performance available on this car keeps on surprising. The switch to E85 has resulted in some pretty quick times.
Back in November i posted a 0-200 km/h run in 10.78 seconds. This was achieved in 28c heat. 9/10ths is a pretty big gain for just a fuel change.
Next up is time to start playing with some pulleys.
Back in November i posted a 0-200 km/h run in 10.78 seconds. This was achieved in 28c heat. 9/10ths is a pretty big gain for just a fuel change.
Next up is time to start playing with some pulleys.
krisdelta said:
At this rate you'll be able to put satellites into low-earth orbit. Did you ever get any video of the speed / noise?
It's on my list to work on.Here's a poor video (instagram shreds the quality) from some roll racing on Saturday:
https://www.instagram.com/p/BsjVC0KlmR1/
And here's one beating a stock GTR. I knew I'd win but impressed at the distance. Love the whine too.
https://drive.google.com/file/d/1PBAAigN1rVCZMojsa...
https://drive.google.com/file/d/1PBAAigN1rVCZMojsa...
Here's a cool timelapse of a Dodge Demon engine getting built by hand. The supercharger is a beast.
https://www.hagerty.com/articles-videos/articles/2...
https://www.hagerty.com/articles-videos/articles/2...
I've been without the hawk for 4 and a bit weeks. It's been down in Sydney getting a pretty unique expansion tank made for the chiller system. The chiller has also been upgraded to a stage 2 pack and with the extra 20l from the tank, I'll have approx 35l of coolant flying round the car keep temps extremely low. We've used over 24m of -AN16 braided hose and to get that much hose underneath the car routing it from back to front and then back has been a tricky job.
We're expecting coolant temps to be around -10/-15c and around 0/5c post 1/4 mile or 1/2 mile run. These extra cold temps will allow us to sneak up on some timing and add further power.
Also being fitted is a 10% ATI lower pulley, blower spacer plates and a thermal blanket to reject some heat.
And finally, my 20" BC Forged wheels arrive next Friday and it'll be off to the strip to try and crack a sub 10.5 1/4 mile. Hoping for a 10.4x.
From there, I'll have a think if I want to chase the 9s.
We're expecting coolant temps to be around -10/-15c and around 0/5c post 1/4 mile or 1/2 mile run. These extra cold temps will allow us to sneak up on some timing and add further power.
Also being fitted is a 10% ATI lower pulley, blower spacer plates and a thermal blanket to reject some heat.
And finally, my 20" BC Forged wheels arrive next Friday and it'll be off to the strip to try and crack a sub 10.5 1/4 mile. Hoping for a 10.4x.
From there, I'll have a think if I want to chase the 9s.
Work is nearing completion.
Here's a video of the power run with added spacer plates. Looking forward to seeing what it results in down the 1/4.
https://www.facebook.com/ForcedInductionInterchill...
Here's a video of the power run with added spacer plates. Looking forward to seeing what it results in down the 1/4.
https://www.facebook.com/ForcedInductionInterchill...
Traction becoming an issue off the line with street tyres on but still managed a new PB for the 0-130 hit. A 0.6 improvement over the previous best.
Waiting for a set of BC forged rims to arrive to which I can throw on these:
Expecting to pick up at least .3 maybe more with those sticky tyres on.
Waiting for a set of BC forged rims to arrive to which I can throw on these:
Expecting to pick up at least .3 maybe more with those sticky tyres on.
Here's a quick video of the jeep roll racing against a twin turbo Huracan which runs low 9s. Not a bad showing I thought.
Love the blower whine!
Love the blower whine!
Still waiting on the forged 20" wheels to mount the sticky rubber to.
In the meantime, I've been planning stage 2 for the Jeep. Time to get serious and chase some 9 second 1/4 miles.
A change of the upper pulley to a smaller size would see me there comfortably but the amount of boost and stress on the stock block would have me nervous every time I stepped on it so I'm going to strengthen the internals.
Thiket heads with upgraded titanium retainers and new valvetrain springs. Carillo forged rods and Mahle pistons should work nicely, also. The standard pistons are forged from factory but they were not designed to handle 1,300+ hp. I'm looking at a decent billet forged crank to finish it off.
This will allow me to crank the boost upto 25 PSI safely and have a limiter at 7,100RPM.
In the meantime, I've been planning stage 2 for the Jeep. Time to get serious and chase some 9 second 1/4 miles.
A change of the upper pulley to a smaller size would see me there comfortably but the amount of boost and stress on the stock block would have me nervous every time I stepped on it so I'm going to strengthen the internals.
Thiket heads with upgraded titanium retainers and new valvetrain springs. Carillo forged rods and Mahle pistons should work nicely, also. The standard pistons are forged from factory but they were not designed to handle 1,300+ hp. I'm looking at a decent billet forged crank to finish it off.
This will allow me to crank the boost upto 25 PSI safely and have a limiter at 7,100RPM.
Here's a video I got sent by the guy whom I raced. It's a HSV GTS running 600whp. Apologies about the quality.
https://drive.google.com/open?id=1jPS0IkBrcbS0lNQn...
Edited by anonymous-user on Sunday 12th May 11:48
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