200MPH Mustang GT

[CraigJ]

Thought it was time to add this to readers rides.

Bought the car last October from Trust Ford for just under 25K with high miles (46k) full history 1 owner.

Didn't intend to do anything with it except drive and have fun.

When i bought it



at home the next day




I stayed like this until March when i saw a few bits on Ebay from some one selling off parts after selling their car.
Bought a Genuine Ford California special grille, US spec rear deck lid and Roush Axle back exhaust.

Original grille out and new one in



UK deck lid


US deck lid


The Axle backs i fitted but then removed as i found them just too loud for me.

I was bored one day i started browsing at superchargers. The 5.0 V8 responds well to forced induction and can take about 1000bhp before it breaks.

I saw the Edelbrock 2300 kits being discontinued as a larger 2650 kit is now available.

£4200 plus vat/duty and it arrived via CJ pony parts



came on a pallet in 2 large boxes.

The little blower is what is going on my westfield.


Got a nice day last weekend so pulled it in and started the install




Standard intake



stripping down



Old intake removed. vacuumed out all the crap.



Edelbrock in place



Topping up the coolant and checking levels



The kit came with a SCT tuner and a tune file from Edelbrock to get it up and running. This is for US spec 50 state emissions and really didn't drive well.

I booked the car into Motorsport & Performance in Batley, West Yorks after reading great stuff about them.

This morning I took the car in and Denton did a great job of improving not only the low speed drivability but the mid range torque and overall power.

In the Dyno cell ( had to nick these pics from MAP as i forgot to take my own)



on the hub Dyno



It ran 552 WHP on the Edelbrock tune then Denton got on with mapping and improving the car.

It finished with 618.8 HP and 547 ft-lbs at the wheels. The Mustangs seem to run a 15% transmission loss so it works out at 711BHP




Denton was surprised and so was I. I expected high 500's at the wheels so it was a good day.

Next up will be some suspension upgrades to help keep the power in check.

[CraigJ]

Was fairly straightforward but had to improvise a few bits as the kit is designed for LHD so some bits had to be altered to fit RHD. The install took a day going at a steady pace.

Will be doing mods for the rear subframe first as this is a known area for movement on the standard car.

[CraigJ]

Only driven it back home 10 miles in rush hour so no chance to test it yet.

Drove it during the changes before mapping and it was improved.

[CraigJ]

Self employed so the daily driving is done in the van. This is used for the normal family duties though. Child seat in the back and pushchair in the boot.

Also have a supercharger for the Westfield, just haven’t had time to fit it yet

[CraigJ]

Few bit done with the car. First up was to fit the Steeda subframe alignment and bushing support kit to keep the rear subframe in check.

[CraigJ]

I started to get some cold start issues with the car when the inlet temp was dropping below 8 degrees.

Quick email to Edelbrock support and a newer brass inlet air temp sensor was sent out over the weekend to me.

Old plastic faulty sensor and newer brass sensor.


This sensor requires changes to the ecu to calibrate it so I decided I wanted to do this myself so bought HP Tuners so I now have access to all engine parameters.

Making some comparisons between the standard/ Edelbrock & custom maps.


I have been tinkering with the torque/inverse torque tables to try and get the car driving a bit smoother low down.

[CraigJ]

Last weekend my JMS boost a pump arrived and was I fitted it upside in the boot.
This boost the fuel pump voltage to increase fuel supply. It’s set to start boosting from 50% throttle.


Also swapped out the nasty orange side markers to red so it looks a bit cleaner. These are led but I’m not bothered about wiring them in.
Nasty orange

Cleaner red


Over the next few weeks/months I have larger injectors, throttle body, air intake and oil pump gears coming. Plan is to go for 800bhp.

[CraigJ]

Yeh install was pretty straightforward. Few mods had to be done as the kit is designed for US LHD.

It’s cost about 6k I think. Power is usable once the tyres are warmed up. Anything below 30/40mph though and you can’t just floor it as you will just spin. TBH though you can spin the tyres at 70/80 if you try. The standard fit Pirelli’s went long ago. There useless unless it’s hot weather and dry.

The standard engine is pretty good and can be easily got up to 500-520bhp for about 3k.

I did this just because I wanted to own something with silly power at least once.

[CraigJ]

Wakefield but the car was Mapped in Batley at Motorsport & Performance but it was only there 1 day. The do a lot of Mustangs there. They have a 850bhp Demo car.

Car is heavy but on par with a Nissan GTR but just RWD. It doesn't feel heavy when you floor it. anything from 30/40 upwards when you have traction it is just relentless in the way it pulls and its not like you have to wait for the boost to built either its just there instantly.

[CraigJ]

ducnick said:

Im NA with the gt350 intake manifold, throttle body, cai, plus tune. Now looking at headers to put it firmly north of 500bhp. Problem is headers are £3k fitted (Kooks green) so it’s getting pricy. Did you make that power on the stock headers and cats?

Take a look at JW racing, they do 3 different power packs. the 510 power pack uses:

Steeda Cold Air Intake Kit (without restrictor)
E-Motion nGuage Data Viewer / Logger
MY18 Genuine Ford Inlet Manifold
MMR Lockout Kit & Additional Hardware
X Force Stainless Steel Headers & Catalysers
Lund Racing Custom Tune File
Adaption to current exhaust to suit headers

A few guys on Mustang6G have had this done and have dyno'd 500+

My car is standard except the Edelbrock. I did have Roush axle back but removed as i found it too loud for every day use.

[CraigJ]

devman85 said:

Hey Craig, awesome car. I didn't realise there was a S550 tuning scene in the UK.
What rear tyres are you running?
My Shelby came with GoodYear eagle F1 super car tyres and 285mm they really were useless when my car was at 750+hp.
I changed the wheels last year and upgraded to 305mm Michelin pilot super sports and they difference is night and day!

I'm still on the standard sizes but running vredestein ultrac vorti all round.
Keep looking at RTR Aero7 wheels so may change later this year.

[CraigJ]

Few bits done to the car over the last week.

Upgraded to the 2018+ digital dash

Normal mode


Sport


Track/drag


and so it didn't feel lonely i also upgraded from MFT (sync 2) to Sync 3


Both dash and Sync 3


Dash was the most expensive at about £1400 for all the bits and the Sync 3 came in at just over 500 using secondhand Focus unit.
Money well spent as the inside now feels much nicer to be in and the Apple car play is certainly welcomed.

Also over the last few months since supercharging the car the day to day drive ability has been slowly getting on my t*ts. Wide open throttle the car was great but just plodding around in traffic it was a chore to try and drive smooth. A few weeks of research and i went with Palm Beach Dyno in Florida for a remote tune to see if they could get it driving better.

Final revision of there tune today after some data logging and the car is night and day difference to drive. Even feels like it pulls better so happy. Will be going back on the dyno again in the near future to see what the power is now.

Sitting in my office now is also a 2018 active exhaust that will be going on soon. Just waiting on a control box to arrive so there will be more pics soon.

[CraigJ]

Plug and play to have it working but there are a few coding changes to do with FORScan but the program is free and easy to use. Just have to buy an interface from Amazon/eBay to about a tenner.

Took about an hour.

[CraigJ]

It’s a Jackson racing kit for a Ford Focus. Blower is a Eaton M45

Bought it used from the states via eBay. Blower needs a rebuild. Had a new pulley reverse engineered by a local company.

[CraigJ]

Sorry yes going on a blacktop. 1.8 currently at 180bhp. Hoping for about 220ish if I ever get time to do it.

[CraigJ]

Turn7 said:

Open or LSD ?

Both cars have Limited slip diffs.

[CraigJ]

Mustang has a clutch type lsd.
Westfield has a Quaife LSD but can’t remember which as I didn’t build it.

[CraigJ]

Another small update, need to have the thread title updated too as the car no longer has 711bhp.

I had been struggling with drive ability issues for a while and was getting now where so decided to use a Tuner from the states for a new custom MAP.
Palm Beach Dyno were chosen and after some data logging for them i got my final tune for the current spec.

Today the car went back on a hub dyno at AET Motorsport (AET turbos) and ran a number of pulls while i logged them.

The results were very good.

632 rwhp and 577 rwt so pretty much 730bhp now.




youtube link
https://youtu.be/_FRcvG7Gu10

Plan is now to fit billet oil pump gears and sprocket, Edelbrock cold air induction kit and a smaller pulley for an extra 3psi.
The aim is 650+ rwhp so around 760 bhp

[CraigJ]

Messed up my calculations,

The car is actually 743bhp now

632/.85=743bhp

[CraigJ]

It’s a rough estimate going on stock cars being dyno’d and producing whp figures that are about 15% lower than the stock BHP figures.