200MPH Mustang GT

[Greg_D]

CraigJ said:

The Coyotes are a very tunable motor. twin turbo cars on E85 are hitting 1000whp on stock internals. The big issue for the Coyote are the pistons. they like to break ringlands.

You can buy a built coyote from Ford performance with forged rods and pistons and a 9.5:1 compression for about 10k dollars.

and that's the thing that's so impressive, a couple of hairdryers/intercooler/injectors and you're an easy 1000 for less than £20k

in something like an ultima it would make an unbelievable car....

[Carlos24]

Greg_D said:

and that's the thing that's so impressive, a couple of hairdryers/intercooler/injectors and you're an easy 1000 for less than £20k

in something like an ultima it would make an unbelievable car....

In something like an ultima the standard engine would haha

[anonymous-user]

CraigJ said:

The Coyotes are a very tunable motor. twin turbo cars on E85 are hitting 1000whp on stock internals. The big issue for the Coyote are the pistons. they like to break ringlands.

Fair play, it’s a great build. The safe power limit for the stock pistons seems to be 600whp if the internet is to be believed

https://www.americanmuscle.com/s550-coyote-power-l...

I know when my LS gave up on the mile sprint, it was without warning when one of the pistons broke up. Left me with a £20k bill, you may be more lucky but if it were mine, I’d be going for a set of pistons next.

[windymissile]

CraigJ said:

Elvington will be April i think now for a 200mph attempt. March is just looking to be too cold and wet to attempt.

Guess I'll see you there then.

[CraigJ]

wormus said:

Fair play, it’s a great build. The safe power limit for the stock pistons seems to be 600whp if the internet is to be believed

https://www.americanmuscle.com/s550-coyote-power-l...

I know when my LS gave up on the mile sprint, it was without warning when one of the pistons broke up. Left me with a £20k bill, you may be more lucky but if it were mine, I’d be going for a set of pistons next.

Don't believe the internet lol. Most supercharger manufactures like Edelbrock, Roush/ford performance and Whipple will give a warranty on the engine once you fit there kits. The 2650 and 3.0 kits will put down mid 600's to the wheel on the supplied tunes. A friend has just had the 3.0 whipple fitted and dyno'd 645whp as a stage 1 kit. The engine is now covered by the whipple warranty.

The pistons are the big weak point but there are so many boosted coyotes about now running well over 600whp with out issue that it isn't worth the worry. If i wanted to try and push it more id do the pistons but i'm happy for now at this power level. Plus we are just in the process of setting up the meth for added cooling/octane for a bit of extra safty.

[CraigJ]

windymissile said:

Guess I'll see you there then.

Have you booked it yet?

I'm waiting for next month and might book on but want to see how the weather is first. Will be doing it a few times though so will be there April anyway i think.

[windymissile]

CraigJ said:

Have you booked it yet?

I'm waiting for next month and might book on but want to see how the weather is first. Will be doing it a few times though so will be there April anyway i think.

Not booked yet.
I need to wait for holiday day approval with it being on a Tuesday.
I might wait to see what the weather does and try and book last minute.

[anonymous-user]

CraigJ said:

Don't believe the internet lol. Most supercharger manufactures like Edelbrock, Roush/ford performance and Whipple will give a warranty on the engine once you fit there kits. The 2650 and 3.0 kits will put down mid 600's to the wheel on the supplied tunes. A friend has just had the 3.0 whipple fitted and dyno'd 645whp as a stage 1 kit. The engine is now covered by the whipple warranty.

The pistons are the big weak point but there are so many boosted coyotes about now running well over 600whp with out issue that it isn't worth the worry. If i wanted to try and push it more id do the pistons but i'm happy for now at this power level. Plus we are just in the process of setting up the meth for added cooling/octane for a bit of extra safty.

Don’t want to piss on your chips. This sounded too good to be true so a little investigation shows the devil is n the detail unfortunately:

E-FORCE SUPERCHARGER WARRANTY said:

COVERAGE BENEFITS:

Terms are 3 years (36 months) or 36,000 miles, whichever occurs first Time is measured from the vehicles original in-service date and the mileage is measured from zero (0) on the odometer
Applies to Stage 1 systems and Stage 2 systems supplied with a tuner and utilizing the Edelbrock calibration

E-Force system must be installed/repaired by:
- New car dealer
- Edelbrock certified installer
- Automotive Service Excellence (ASE) Certified Technician at licensed automotive repair facility

Valid in the U.S. and Canada

Same goes for Whipple who only cover standard cars. Any mods to exhaust or tyres/wheels for example also void it.

On a different note, I’m currently getting an FI interchiller fitted to mine to control heat soak in summer. You should look into it for the long term. Meth strips the Teflon coating from supercharger rotors, might be ok with water though.

[CraigJ]

There are no chips to piss on. My point was that the current crop of blowers put down well over 600WHP on there own supplied tunes, hence the American muscle page stating the pistons are only good for 600whp isn't all that correct. If the pistons were all going to let go once you are more than 600whp then the superchager companies are not going to offer warranty as it would be business suicide.


I looked at the chillers as someone pointed them out to me. There's a company who do one called the killerchiller for the mustang. But reviews didn't seem all that great and as from reading up the S550 apparently shuts down the AC under full throttle making the kit a bit pointless as it wont work when you really need it.

The Edelbrock on my car deals with heat very well anyway. All through last summer it never gave any cause for concern. The only reason for the water/meth is for the 1 mile runs as it will be WOT for a long time so just a bit of added safety. Each time the car has been on the dyno the heat soak has been quite minimal. On the last dyno the power increased with each pull with the 704whp being the last pull.

[irocfan]

CraigJ said:

Thanks for the nice comments. means a lot.

Carlos24:
560bhp will still be a lot of fun on the mile.

just out of curiosity is there a lower limit on power outputs for this?

[anonymous-user]

Yes yours is a similar design to the Maggie heartbeat superchargers which have better intercoolers. Mine’s a modular TVS2300 so less so but the FI interchillers do work especially at higher boost. Yes the AC switches off at WOT but the pump keeps circulating the water so the only constraint is the volume of the water in the IC circuit. They do a trunk mounted tank which goes in the spare wheel well and holds plenty for the mile. Killer chiller kits are smaller and less effective.

The TVS blowers have been out for years, on LS engines they come with a 6psi map which works out about 600 fwhp or 500hp at the wheels. Drivetrain loss is about 25%. Don’t know what that equates to on a Mustang.

Hope your gearing works with the new diff, definitely watching with interest.

Edited by anonymous-user on Friday 28th February 19:51

[CraigJ]

irocfan said:

CraigJ said:

Thanks for the nice comments. means a lot.

Carlos24:
560bhp will still be a lot of fun on the mile.

just out of curiosity is there a lower limit on power outputs for this?

Not sure what you mean?

[irocfan]

CraigJ said:

irocfan said:

CraigJ said:

Thanks for the nice comments. means a lot.

Carlos24:
560bhp will still be a lot of fun on the mile.

just out of curiosity is there a lower limit on power outputs for this?

Not sure what you mean?

apologies I was referring to the Elvington events. Most of the cars I've seen look to be well to the north of my out-put - I just wondered if there was a ruling that lesser powered cars may not be welcomed?

[CraigJ]

You can turn up in anything. As long as it passes inspection you can have a go.

[irocfan]

CraigJ said:

You can turn up in anything. As long as it passes inspection you can have a go.

thanks for that - have to give it some thought, sounds like a fun day out

[CraigJ]

Small update.

When i did the top speed runs last year I noticed from seeing pictures afterwards that the bonnet was being lifted quite a lot on the front corners. Gap looked big enough to slide your hand in. I ordered a pair of Quiklatch QL38 hood pins to keep it down and prevent the lift and prevent the bonnet breaking lose. The QL38's are rated at 500lbs holding force each. These are the smaller version of what is factory fitted tot he new GT500.

Fitted them today. only took about an hour or so to do.

holes drilled, no turning back


Perfect alignment



I filled down the edges and used a touch up paint to coat the bare metal.

Dropped in place to see how they look


All done




I then decided it was time to fit the second catch can I have had sat on the bench for 6 months.
Nice and easy and also tidied up the engine bay a little bit. Swapped the odd silver bolt for black ones and removed the tabs off of the charge cooler housing.

Passenger catch can


Drivers side catch can emptied after a dyno session and 260 mile round trip to Telford. Swapped the mount bolt for a tidy allen bolt.


Just a full shot of the engine bay.


Just waiting for good weather now for a top speed run.

[CraigJ]

No real update as such for the Mustang. Due to Covid19 all events have been cancelled for the time being so no speed runs yet.
Car is currently sorn.

Decided to tidy up a few bits and paint the calipers and fit the wheels & tyres i will be using for the high speed runs.
I went with Michelin Super sports 305/35/19 for the rears to give the right tyre height of 27.4 inch. This should give a rough top speed in 5th of about 207mph at 8k rpm. Front tyres are 275/40/19 Michelin PS4S. Slightly higher profile than i would have liked but needed for the right speed rating and load.

Road wheels and tyres


Top speed tyres/wheels


on the quick jack


Back on the floor


Fingers crossed for a run in late May or June.

[therealsamdailly]

First time I've seen this thread, so just caught up on the whole thing. What an awesome thing!

[Kaveney]

Love it as a fellow ford fan this Mustang is amazing

[CraigJ]

Cheers guys