Search found 610 matches

by SimpleSimon
Fri May 22, 2020 7:43 pm
Forum: Engines Area
Topic: Rover V8 cylinder head porting advice.
Replies: 57
Views: 21965

Re: Rover V8 cylinder head porting advice.

I've always pressed the guides out. A 12 tonne press does the job just fine. Chris. Yep me too :D stuck the heads in front of a space heater pressed 32 out and after porting 4 heads (long story) used same method before pressing in bulleted set , then off to machine shop guides reamed and seats recut
by SimpleSimon
Tue May 05, 2020 10:55 pm
Forum: Engines Area
Topic: Rover V8 cylinder head porting advice.
Replies: 57
Views: 21965

Re: Rover V8 cylinder head porting advice.

Using the Real-Steel larger 41.5mm inlet valve I managed to increase the valve seat insert by 4mm+ just be careful when pushing things I used engineers dye to keep things in check and not break into the increased valve sizes seats future area
by SimpleSimon
Fri Apr 10, 2020 8:30 pm
Forum: Engines Area
Topic: Warrior
Replies: 11
Views: 602

Re: Warrior

Your RPI heads cant be up to much there are stock TVR spec (mild cam) standard headed 4.0 fitted to TVR RV8 models making 220/240- (healthier) HP these are Lucas Hotwire engines just fitted with large tubular manifolds and free flow exhaust system , just to give you a bench 8-)
by SimpleSimon
Fri Apr 10, 2020 8:15 pm
Forum: Engines Area
Topic: Rebuild of a RV8 4.6 instead of the 3.9
Replies: 9
Views: 302

Re: Rebuild of a RV8 4.6 instead of the 3.9

Your uncompressed fuel in the cylinder wont be an issue just because your running a 285 duration cam with wasted spark :roll: in cam terms thats not huge, lots of us running more severe profiles and wasted spark with no issues :wink:
by SimpleSimon
Sun Feb 16, 2020 11:56 pm
Forum: Engines Area
Topic: Lucas 14CUX on a 4.6 ?
Replies: 14
Views: 666

Re: Lucas 14CUX on a 4.6 ?

Yes 14CUX will handle a 4.6 ok, they tend to run rich at low revs. Only at very top end does it struggle a bit to keep up as it runs lean at the top of rev range. Not if mapped correctly they dont 8-) fueled many a well breathed on RV8 at 5 litre plus and making over 350hp :D stock injectors are th...
by SimpleSimon
Thu Jan 23, 2020 11:43 pm
Forum: Engines Area
Topic: Valve tip height
Replies: 10
Views: 372

Re: Valve tip height

Please dont resort to that :? like suggested above get it done properly :wink: do it right
by SimpleSimon
Tue Nov 26, 2019 12:55 am
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Can I pass 1990 emissions in UK with a carb?
Replies: 24
Views: 795

Re: Can I pass 1990 emissions in UK with a carb?

Ian this guy may be your man :wink: he can map the Lucas and worked with the guys that cracked the software lots of happy TVR customers using the CUX/Lucas that he tuned/re-mapped 8-) although like yourself I also run a single Lucas plenum and struggle 238 solid cam etc etc and also struggle a littl...
by SimpleSimon
Sun Nov 24, 2019 5:24 pm
Forum: Cooling Area
Topic: water pump pulley - loose belt?
Replies: 3
Views: 711

Re: water pump pulley - loose belt?

If the belt is incorrectly tensioned (slack) the alternator will protest way before the water pump i.e screaming its head off especially when a load is applied to the battery post starting or headlights heater on etc
by SimpleSimon
Sun Nov 24, 2019 5:20 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Can I pass 1990 emissions in UK with a carb?
Replies: 24
Views: 795

Re: Can I pass 1990 emissions in UK with a carb?

You will breeze it your 2 years early for CAT more stringent testing
by SimpleSimon
Sun Nov 10, 2019 11:41 am
Forum: Engines Area
Topic: Lucas 14CUX on a 4.6 ?
Replies: 14
Views: 666

Re: Lucas 14CUX on a 4.6 ?

GDCobra wrote:
Fri Nov 08, 2019 5:33 pm
Have a look at:

www.Remap-14cux.uk

May help
That guy mentioned on the link above Jools (Spitfire4v8 is the owner of the mentioned company above hence why I posted this up previously :mrgreen: I dont recommend anyone I wouldn't use myself as I am also in the motor trade 8-)
by SimpleSimon
Fri Nov 08, 2019 12:28 am
Forum: Engines Area
Topic: Lucas 14CUX on a 4.6 ?
Replies: 14
Views: 666

Re: Lucas 14CUX on a 4.6 ?

The CUX Hotwire ecu has lots of scope TVR used them from 4.0 to 5.0 displacements (yes even the 4.6) if you need it remapping to suite I recommend http://www.kitsandclassics.co.uk/ and wont charge a kings ransom unlike some, lots of satisfied TVR owners 8) dont waste money on a generic performance c...
by SimpleSimon
Thu Oct 31, 2019 10:13 pm
Forum: Engines Area
Topic: Cylinder bores and crank journals :- rust removal ?
Replies: 2
Views: 254

Re: Cylinder bores and crank journals :- rust removal ?

RR did that to allow all the casting stresses out of the block before machining :)
by SimpleSimon
Tue Oct 01, 2019 8:50 pm
Forum: Engines Area
Topic: 3.9 later intermin Serp Engine project
Replies: 5
Views: 435

Re: 3.9 later intermin Serp Engine project

X bolting not necessary IMO unless your building a balls out screamer or aiming for big power numbers , no need to change main caps on many 3.9 int blocks they already have the full width caps fitted block and caps just needing jigging and drilling for X bolting :wink:
by SimpleSimon
Mon Sep 23, 2019 11:14 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: Lambda LSU4.2 or 4.9?
Replies: 17
Views: 895

Re: Lambda LSU4.2 or 4.9?

Spartan fan here :nw they just work and no voltage offset issues like I had with my Innovate LM2 (even grounded in the same place as MS and splitting heater and sensor grounds) :roll: lots of glitches and freezing on initial purchase of the LM2 until about 2 firmware updates in :| but as a stand alo...
by SimpleSimon
Wed Sep 11, 2019 8:47 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: stepper motor - alternatives
Replies: 10
Views: 726

Re: stepper motor - alternatives

Bosch 2 or 3 wire get my vote older Volvo Saab BMW GM etc , if you run a big cam ign scatter spark dialing in lots of advance etc wont be enough for warm up so some kind of ICV is essential in some instances, I agree with Dave the Hotwire stepper is a pain in the arse and often erratic in its action...

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