Turbo engine limits
Moderators: jifflemon, coyote1980, Rachel
- doingitsideways
- 480 Expert
- Posts: 659
- Joined: Wed May 02, 2012 8:55 pm
- Location: Manchester
Turbo engine limits
So, I'm toying with building a bit of a monster Turbo lump. Well, as much as possible without breaking the bank anyway.
I was wandering if anyone knows the sort of power that the internals can take. Rods, crank, head/studs etc?
Current plan is to port/pollish the head, T25g turbo, bigger injectors - thinking from a B230t, decent exhaust, then go from there.
Any thoughts appreciated
Cheers,
Steve
I was wandering if anyone knows the sort of power that the internals can take. Rods, crank, head/studs etc?
Current plan is to port/pollish the head, T25g turbo, bigger injectors - thinking from a B230t, decent exhaust, then go from there.
Any thoughts appreciated
Cheers,
Steve
"If you can't fix it with a hammer, it's an electrical fault!"
Hammers can't fix a 480!!!
Hammers can't fix a 480!!!
- jamesy12345
- 480 Veteran
- Posts: 753
- Joined: Tue Apr 03, 2012 5:49 am
- Location: Durham, England
Re: Turbo engine limits
well Robou's ECUs get them up to 170 /180 on standard internals, Rpruen did lots of work to get to near 300 IIRC...so I think the answer must be somewhere in between the two!!
Not much help I know
Give me a shout if & when u want this T25G
Regards,
The Swap Shop Assistant
Not much help I know
Give me a shout if & when u want this T25G
Regards,
The Swap Shop Assistant
Current:
Volvo S60 '04
Renault 21 '91
Subaru Legacy '05
Mazda RX-7 '93
Renault 5 '84
Previous:
440 2 litre, 440 Turbo, 460 Turbo, 480 Turbo x2, 854 T-5R, S40 T4, V40 T4, S70 T5 & R, V70 R x2, S60 R
Volvo S60 '04
Renault 21 '91
Subaru Legacy '05
Mazda RX-7 '93
Renault 5 '84
Previous:
440 2 litre, 440 Turbo, 460 Turbo, 480 Turbo x2, 854 T-5R, S40 T4, V40 T4, S70 T5 & R, V70 R x2, S60 R
- doingitsideways
- 480 Expert
- Posts: 659
- Joined: Wed May 02, 2012 8:55 pm
- Location: Manchester
Re: Turbo engine limits
Dear Swap-Shop Assistant,
I would indeed be interested in your T25g.
Would you be willing to do a deal, with the obligatary packet of Monster Munch and half eaten Crunchie?
Many thanks,
Steve "home of Jamesy's previous projects" Sideways
I would indeed be interested in your T25g.
Would you be willing to do a deal, with the obligatary packet of Monster Munch and half eaten Crunchie?
Many thanks,
Steve "home of Jamesy's previous projects" Sideways
"If you can't fix it with a hammer, it's an electrical fault!"
Hammers can't fix a 480!!!
Hammers can't fix a 480!!!
- glasgowjim
- 480 Is my middle name
- Posts: 4830
- Joined: Sun Oct 01, 2006 5:28 pm
- Location: GLASGOW SCOTLAND
Re: Turbo engine limits
Can supply a set of 4 bigger injectors (or so I was told at the time just never used them)
can I have the monster munch pleeeese
can I have the monster munch pleeeese
- doingitsideways
- 480 Expert
- Posts: 659
- Joined: Wed May 02, 2012 8:55 pm
- Location: Manchester
Re: Turbo engine limits
A savoury man then, Jim??
Any preference on flavour?
Worth bearing in mind though, that roast beef will require the injectors cleaning!
Any preference on flavour?
Worth bearing in mind though, that roast beef will require the injectors cleaning!
"If you can't fix it with a hammer, it's an electrical fault!"
Hammers can't fix a 480!!!
Hammers can't fix a 480!!!
- jamesy12345
- 480 Veteran
- Posts: 753
- Joined: Tue Apr 03, 2012 5:49 am
- Location: Durham, England
Re: Turbo engine limits
a deal eh? Got to be worth a couple of those Ronals at least
Current:
Volvo S60 '04
Renault 21 '91
Subaru Legacy '05
Mazda RX-7 '93
Renault 5 '84
Previous:
440 2 litre, 440 Turbo, 460 Turbo, 480 Turbo x2, 854 T-5R, S40 T4, V40 T4, S70 T5 & R, V70 R x2, S60 R
Volvo S60 '04
Renault 21 '91
Subaru Legacy '05
Mazda RX-7 '93
Renault 5 '84
Previous:
440 2 litre, 440 Turbo, 460 Turbo, 480 Turbo x2, 854 T-5R, S40 T4, V40 T4, S70 T5 & R, V70 R x2, S60 R
- doingitsideways
- 480 Expert
- Posts: 659
- Joined: Wed May 02, 2012 8:55 pm
- Location: Manchester
Re: Turbo engine limits
2 Ronals, 1 a little scuffed.jamesy12345 wrote:a deal eh? Got to be worth a couple of those Ronals at least
No tyres.
"If you can't fix it with a hammer, it's an electrical fault!"
Hammers can't fix a 480!!!
Hammers can't fix a 480!!!
Re: Turbo engine limits
There is no answer in between. Richard Pruen invested a lot and blew up everything in the end. Everybody did. Buy or build yourself a car that answers your demands.
Injection is a timed pulse. Bigger injectors let pass more fuel. Your lambda sonde does it's utmost best to correct this until about 3200 rpm. Then the engine runs with too rich a mixture. Fun!
The original turbo speeds up very fast. It is made for (only?) 1 bar maximum. If you mount a "bigger" turbo a lag will occur and the higher boost will not be answered for by the ECU, because the MAP only translates to 1 bar. So the mapping goes haywire. Fun!
The solution is a two years study in electronics and Megasquirt and doing away with the ECUs and MAF, because no one will assist you in rebuilding/adjusting the original ones. Even the super-richmod (or what it is called) died premature.
The oracle has spoken once again. At your service. I admire your fantasy.
Injection is a timed pulse. Bigger injectors let pass more fuel. Your lambda sonde does it's utmost best to correct this until about 3200 rpm. Then the engine runs with too rich a mixture. Fun!
The original turbo speeds up very fast. It is made for (only?) 1 bar maximum. If you mount a "bigger" turbo a lag will occur and the higher boost will not be answered for by the ECU, because the MAP only translates to 1 bar. So the mapping goes haywire. Fun!
The solution is a two years study in electronics and Megasquirt and doing away with the ECUs and MAF, because no one will assist you in rebuilding/adjusting the original ones. Even the super-richmod (or what it is called) died premature.
The oracle has spoken once again. At your service. I admire your fantasy.
Too old to bother
480 Turbo midst '91
480 Turbo midst '91
- doingitsideways
- 480 Expert
- Posts: 659
- Joined: Wed May 02, 2012 8:55 pm
- Location: Manchester
Re: Turbo engine limits
Ha ha ha!
Thanks Robou, the Oracle!
So, have you any advice?
I think I would really be happy with 200-220bhp. That would make a really lively little car.
Tell me straight, am I dreaming to even get anywhere near that without epic problems??
Many thanks,
Steve
Thanks Robou, the Oracle!
So, have you any advice?
I think I would really be happy with 200-220bhp. That would make a really lively little car.
Tell me straight, am I dreaming to even get anywhere near that without epic problems??
Many thanks,
Steve
"If you can't fix it with a hammer, it's an electrical fault!"
Hammers can't fix a 480!!!
Hammers can't fix a 480!!!
- jamesy12345
- 480 Veteran
- Posts: 753
- Joined: Tue Apr 03, 2012 5:49 am
- Location: Durham, England
Re: Turbo engine limits
T4 engine?
Current:
Volvo S60 '04
Renault 21 '91
Subaru Legacy '05
Mazda RX-7 '93
Renault 5 '84
Previous:
440 2 litre, 440 Turbo, 460 Turbo, 480 Turbo x2, 854 T-5R, S40 T4, V40 T4, S70 T5 & R, V70 R x2, S60 R
Volvo S60 '04
Renault 21 '91
Subaru Legacy '05
Mazda RX-7 '93
Renault 5 '84
Previous:
440 2 litre, 440 Turbo, 460 Turbo, 480 Turbo x2, 854 T-5R, S40 T4, V40 T4, S70 T5 & R, V70 R x2, S60 R
- doingitsideways
- 480 Expert
- Posts: 659
- Joined: Wed May 02, 2012 8:55 pm
- Location: Manchester
Re: Turbo engine limits
Hmm...jamesy12345 wrote:T4 engine?
I'll wait for a project thread!
"If you can't fix it with a hammer, it's an electrical fault!"
Hammers can't fix a 480!!!
Hammers can't fix a 480!!!