Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Panoz > GTRA / GTWS / GTS
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 06-14-2021, 01:12 AM   #1
Foghorn37
Bum
 
Join Date: Oct 2011
Location: Peachtree City, Georgia
Posts: 24
Thanks: 1
Thanked 2 Times in 2 Posts
GTWS #18 engine upgrade

- Gen II Coyote from a wrecked ‘15 Mustang GT (435 hp @ flywheel)
- various MMR parts to address known weaknesses IOT “harden” the engine
- 2018 Gen III intake manifold
- converted engine fuel system to return-style
- Ford motorsports control pack w/ drive-by-wire throttle

- Volvo S60 electric power steering pump (no OEM engine-driven PS option)
- In-cell 340 lph fuel pump with -8 feed & -6 return lines
- G-Force T-5 trans (9310 gears & aux. shaft bearing support)
- my TKO is worn out & I bad this lying around...the NMRA pure coyote guys are running them with no failures, so confidence is high that I’ll be OK.

Planning to copy the GTWC 4.6 Hedman headers using a coyote flange and 1 7/8 primaries with a 3” collector.

As of this post, engine, trans, and PS pump are fitted. Still need to do all the plumbing and wiring as well as source a header fabricator. More to follow...
Foghorn37 is offline   Reply With Quote
Old 06-23-2021, 07:22 PM   #2
Steve Hummel
AF Newbie
 
Join Date: Aug 2016
Location: Petersburg
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Re: GTWS #18 engine upgrade

Sounds like a great swap. We upgraded our 351W engine to a bored/stroked 351W, getting 454cid. We achieved 660+ flywheel HP with Shell 91 pump fuel with a not crazy hydraulic roller camshaft. We built larger headers as well to accommodate the increase in cid (29" primary, 2" o.d., with merge collectors & 3.5" secondary). We used PIPEMAX to design the headers.



We ran the engine in this past weekend's VARAC vintage race in the G90+ class at Mosport in Ontario, Canada, achieving 4th place. No way were going to catch the real fast older TransAm cars but the engine was very strong, torquey & easy to drive.Great race, 53 car field!
Steve Hummel is offline   Reply With Quote
Old 02-24-2023, 11:42 AM   #3
Foghorn37
Bum
Thread starter
 
Join Date: Oct 2011
Location: Peachtree City, Georgia
Posts: 24
Thanks: 1
Thanked 2 Times in 2 Posts
Re: GTWS #18 engine upgrade

Quote:
Originally Posted by Foghorn37 View Post
- Gen II Coyote from a wrecked ‘15 Mustang GT (435 hp @ flywheel)
- various MMR parts to address known weaknesses IOT “harden” the engine
- 2018 Gen III intake manifold
- converted engine fuel system to return-style
- Ford motorsports control pack w/ drive-by-wire throttle

- Volvo S60 electric power steering pump (no OEM engine-driven PS option)
- In-cell 340 lph fuel pump with -8 feed & -6 return lines
- G-Force T-5 trans (9310 gears & aux. shaft bearing support)
- my TKO is worn out & I bad this lying around...the NMRA pure coyote guys are running them with no failures, so confidence is high that I’ll be OK.

Planning to copy the GTWC 4.6 Hedman headers using a coyote flange and 1 7/8 primaries with a 3” collector.

As of this post, engine, trans, and PS pump are fitted. Still need to do all the plumbing and wiring as well as source a header fabricator. More to follow...

February 2023 update: headers are complete. If you’re in the ATL, call Matt Smith of Exotic Exhaust in Hiram, GA. He does good work. Highly recommended.

Other than that, not much progress…I’ll get my priorities straight one of these days…
Foghorn37 is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums .com Car Chat > Panoz > GTRA / GTWS / GTS

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:26 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts