Jump to content
The mkiv Supra Owners Club

Automatic to Manual


Guest A7_UFO

Recommended Posts

Hi all

 

New to the world of Supras having spent 10 years in the world of VW.

 

Have found an imported Supra for sale that is perfect in my eyes, apart from the fact it is an automatic. Not knocking automatics before I offend anyone, but consider 140bhp transmission loss a bit too much and prefer manual. Is it do'able to change auto to manual? Does anyone do a sequential conversion as an option?

 

Thanks in advance

Simon

Link to comment
Share on other sites

Yeah, you're only gonna lose that much bhp if you're running with a monster! :)

 

Its been said/quoted 25% loss for an auto through the drivetrain onto a rolling road dyno on a standard car give or take.

 

Assuming your car has 320 to start you will only lose 70 ish bhp to whats recorded at the rear wheels.

:welcome: anyway :)

Link to comment
Share on other sites

Yeah, you're only gonna lose that much bhp if you're running with a monster! :)

 

Its been said/quoted 25% loss for an auto through the drivetrain onto a rolling road dyno on a standard car give or take.

 

Assuming your car has 320 to start you will only lose 70 ish bhp to whats recorded at the rear wheels.

:welcome: anyway :)

 

Ah that would explain the 316 bhp from my standard J-spec Auto :)

Link to comment
Share on other sites

The one I'm looking at has 595bhp at the fly and 455bhp atw.

 

So as they haven't dyno'd the engine on a bench they mean it's 455atw....which could be 20-25% more at the fly...so at most on a crap autobox you'd see 568 at the fly. I'd bet it was closer to 520 though...

 

What's the spec? What turbo?

Link to comment
Share on other sites

well what are we supposed to say FFS?:innocent:

 

You know, mine is practically stock. When I had it on a hub dyno (running *below* 18psi max) the guy commented on how it was making more power than many 'single' supras that had been there.

 

Read: even the ones with *potential* to be seriously powerful might well be bodged and mistuned lol...

Link to comment
Share on other sites

You know, mine is practically stock. When I had it on a hub dyno (running *below* 18psi max) the guy commented on how it was making more power than many 'single' supras that had been there.

 

I saw a T-78 @ 1.4 bar put out 520 to the hubs, that sounded about right, compared with what it can put out at higher boost numbers, that was an auto too.

 

Paul Whiffins first single kit put out 450 ish to the wheels a few years back on a PHR1 kit I think. His was a manual and I dont know how that was setup.

 

This guys numbers dont sound too unrealistic to me.

Link to comment
Share on other sites

well i got a manual N/A and a mush near me got a 398bhp tt auto from standing start i kill him no problem for about 150yards:D

 

then once he,s going i get wiped out like i,m going backwards:(

 

unless you planning on alot of 1/4 mile runs i don,t think auto or manual matters really they both bloody rapid. most of the big big monsters run auto,s anyway!! all soops rule:Pling: :eyebrows:

Link to comment
Share on other sites

This guys numbers dont sound too unrealistic to me.

 

Maybe they're not, ve shall see...

 

I guess I'm still under the influence of the various TOTB reruns on M&M where the top supras didn't really shine (to put it mildly)

The supra has the largest capacity for crying out loud so it should have a headstart. (talking to myself now)

Link to comment
Share on other sites

Maybe they're not, ve shall see...

 

I guess I'm still under the influence of the various TOTB reruns on M&M where the top supras didn't really shine (to put it mildly)

The supra has the largest capacity for crying out loud so it should have a headstart. (talking to myself now)

 

Yeah but don't forget we spend a lot less in this country on our Supra's than the Yanks do....and look at the Yank drag Supra's....they'd clean up at TOTB...

 

The Skyline scene in the UK sees similar investment to the Supra scene in the US... it's all about money.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.