Here's a rough guide to what O.E. components can do at what cost.
Fitted with a turbocharger, an unopened G.E. lump £100, will do 500bhp. A G.E. lump fitted with either a T.T. head gasket £100 or marginally better, fitted with T.T. pistons £100, will do 700bhp. If that's not enough horses for peanuts, Prozac might be the answer?
An unopened GTE lump £2,500, will do the same 700bhp, there are more sexy shiny things available to spend your money on and the Prozac works just as well.
If over time, the Prozac wears off and you need more than 700bhp to drive to the health food shop, only then will you need consider expensive sexy "forged" word things. The time saved by avoiding this walk in the fresh air, could allow you to spend more of your money to be inside an armpit scented gym pumping iron in front of posing mirrors, to make up for the lost free exercise in the real World and please remember to post a For Sale thread for your faithful old T.T. pistons, there's always an N/A-T er after those.
Transmissions are more the limiting factor, how long their piece of string round number second-hand price & power-limit guesstimates are;
A340E 300ftlb, £50. W58 400ftlb, £600. A343E 550ftlb, £150. A343/0E Hybrid 600ftlb, £300. R154 700ftlb, £1,200. V160/1 900ftlb, £4,000. (Plus up to £3,000 for a clutch)
It is fashionable to spend lots of money on manual transmissions and free up auto boxes for Hybrids.
If you know which way up to hold a spanner and are canny with your buying, N/A-T with A343/0E Hybrid transmission is the cheapest and most reliable 600bhp ever and has been done for less than £1,000.
If you know which end of a soldering iron gets hot and can find a used SupraStick, Flappy-Paddles can be fitted from £200 or around £500 with a new one.
However, if you're spannerlexic, the resulting labour costs dictate that a T.T. conversion @ around £2,500 + transmission cost + labour + VAT would be the cheapest way to 325bhp, or around £1,000 more + labour + VAT for 400bhp with a BPU upgrade.
Flappy-Paddles can be fitted along with a Syvecs ECU and mapped for around £4.000?
T.T. to single turbo up to 900bhp builds done professionally, are reckoned inc ECU to cost around £10,000?
Should money be no object, you can shave a few more seconds off your trip to the shops with an up-to 3.5 litre stroker build.
The above information will assist you to calculate the cost of spannerlexia.
Top Tip:
http://images.cafepress.com/image/20237760_125x125.jpg
Both GTE and GE engines are used for 1,000+bhp builds, browse the projects section linked below for more info.
http://www.mkivsupra.net/vbb/forumdisplay.php?147-mkiv-Supra-Projects
Here's a link to the Workshop Manual, which should be compulsory reading before being granted full membership.
http://www.mkivsupra.net/vbb/content.php?51-Repair-Manuals
Here are links to the N/A-T and Hybrid Transmission Groups, that you can access after you have paid your membership.
http://www.mkivsupra.net/vbb/group.php?groupid=49
http://www.mkivsupra.net/vbb/group.php?groupid=57
Please educate your "mechanic" with the above information and remember that the search button is your friend.
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‘Artistic Statement’ by means of incorrect spelling, case, punctuation and grammar demonstrates ‘Style’, even though not often noticed.
“anyone” can be used as post prefix for technical questions, it’s no more demanding to write than “Please”, yet far less ‘Style’ demeaning.
“hey”, can mean “Hi” or “Hello” and also used as dismissive substitute for “Thank you”, reminding that ‘Style’ won’t belittle with demeaning gratitude words.
Incorrect answers from someone cool are cooler than correct answers from un-cool someone’s.
Universal uber-cool Tech Answer; “Syvecs SRD lol.” (Spelling mistakes of this will not be tolerated.)
Should a technical answer resolve a technical question, posting up the resolution for benefit of others, is uber un-cool.
When vocabulary fails, say “lol”.
For reference, Motto for the Stylish is presently displayed in the first line of mellonman’s signature.
http://www.mkivsupra.net/vbb/member.php?18989-mellonman