Twin charged sr20DET - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Azarael · 12-13-2001, 09:16 AM

I just saw that other thread with the Lancia s4 link, turbo & supercharged <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'> Has it ever been done to a sr20DET?? hehe, I would love to see done with some nice mods to lighten and strengthen the engine. I'll let you people do the talking in this thread.

(Edited by Azarael at 9:40 am on Dec. 13, 2001)

*ca18guy* · 12-13-2001, 09:22 AM

Someone posted a real looking pic of one, kinda pointless to twin turbo it, but it's there money.

Azarael · 12-13-2001, 09:28 AM

Not twin turbo, but supercharge and turbocharge

*DSC* · 12-13-2001, 09:31 AM

I can't picture how that would work.  At what point would they come together?  It would be a lot cheaper just to buy a big ass turbo and turn up the boost.

*ca18guy* · 12-13-2001, 09:33 AM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from Azarael on 9:28 am on Dec. 13, 2001
Not twin turbo, but supercharge and turbocharge
</td></tr></table><span id='postcolor'>
Oh, never seen it on a SR.

Azarael · 12-13-2001, 09:36 AM

http://www.fortunecity.com/silvers....p>Check out the Lancia Delta s4

(Edited by Azarael at 9:39 am on Dec. 13, 2001)

kitoro · 12-13-2001, 09:49 AM

I don't see why it can't be done. I mean, if Hondas can take it, why can't the 240?
there's just the problem of fitting it... anyone know if there's room?
if you've got the money, you can do it

but i don't see why you need to.
SR20s have good low-end torque... so why bother?
just extra money wasted IMHO. get a bigger turbo like DSC said.

crazycuban · 12-13-2001, 11:36 AM

why twincharge?  sounds cool, but even if u want the low end torque, just get a small, ball bearing (so it spools quicker) turbo.  it'd be less money in the end, and u'd have a ball bearing turbo, which is always cool.  
ca18, twin turbo sounds like it wouldn't work good, but in a rev speed i have theres an s14 with a red top, twin turbo, pushing 800 to the wheels.  thats still the highest i've seen an sr push.

*DSC* · 12-13-2001, 11:58 AM

You could get 2 turbos (1big 1small) and have the little one spool up first and then let the bigger one take over. Thats been done before and would be a lot less complex than haveing 2 innercoolers and all that extra pipeing. "ca18, twin turbo sounds like it wouldn't work good..." can you actually twin turbo an inline4? Or did they have a twin sequntial(sp?) setup like I just mentioned?

*nismo270r* · 12-13-2001, 06:09 PM

It has been done...Garage Saurus in Japan did it on one of their cars...I'll post the pic up in a few...Gotta scan it first. :biggrin:

(Edited by nismo270r at 8:35 pm on Dec. 13, 2001)

kitoro · 12-13-2001, 07:51 PM

unless he's pumping over 500hp in that thing, i seriously don't see the need for a TT, even if it IS sequential....
ball-bearing should do the trick shouldn't it?

matic 240sx · 12-13-2001, 08:44 PM

i dont know if you guys have seen it yet... but in the new turbo there is an integra with 4000 hp 4 cyl nitro burning teg...  how the #### does a 4 banger take that?

Kefabi · 12-13-2001, 11:05 PM

4000 hp? That has GOT to be a typo...

mistert · 12-14-2001, 05:42 AM

the lancia employed a helical supercharger and a turbocharger, with a bypass valve that was activated at a certain RPM by a centrifugal clutch. the point of this wasnt neccessarily to make monster power, it was to make monster power all the way through the powerband. a 1.8 litre engine with 470hp and 333 lb/ft of torque with all of the neccessary power available anywhere at the powerband? this was ideal for a rally car. in rally you want tons of instant response in the low RPM range for powering out of corners, which is where a supercharger is ideal, but you want loads of top end for straightaways, which a supercharger isnt very good at, but a turbo is ideal for. so why not just power the car on the supercharger and then switch to the turbo the second the turbo is spooled?

this is a perfect design for rally, and would work great anywhere else, but keep in mind these cars were built by the manufacturer's racing team, with a giant budget, and an entire company's parts bin, which already included superchargers and turbochargers. if you want to undertake something wild like this, go ahead, but its going to be hard. as you can see the lancia delta at the time was mid engine, with a massive ass to store stuff, and an open front end in which they could stuff all sorts of shit, and it has a full kevlar body as well, which makes all the weight of this stuff less of a factor.

anyways its very late/early and i should go to sleep instead of making very long posts. good day, sirs

*ca18guy* · 12-14-2001, 05:45 AM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from matic 240sx on 8:44 pm on Dec. 13, 2001
i dont know if you guys have seen it yet... but in the new turbo there is an integra with 4000 hp 4 cyl nitro burning teg... how the #### does a 4 banger take that?
</td></tr></table><span id='postcolor'>

Dyno's can't even read that high, so even if it did make that much power it would be speculation. 4000 seems like they guesstimated alittle to high.

mistert · 12-14-2001, 05:46 AM

and by the way, what would you actually do with something quite that crazy? the car was kevlar bodied and tube framed, and its still the reason they closed group B rally...because the car was so insanely fast and ended up getting people killed, in a series of highly publicised deaths at the time. sure it doesnt seem like that much, but in the full rally spec, the car did 2.8 second 0-60...on gravel. in a RWD car it'd be 10x as dangerous, if you could do anything other than just spin the tires

thewholefnshow · 12-14-2001, 07:04 AM

That was done like 6 years ago, look in super street 3 months ago, the centerfold car was a crazy acura integra with a dual system... the turbo ran 16psi and the super 4, the super was low rpm and fed the turbo so there was no lag. HKS developed it (I think) for the MR2's and they stoppeed because they were very $$$. But the tech has been around for ever, and I know for the fact that if you want the info, it was in Super Street... Or was it SCC, no, I am sure it was superstreet.. it was the McGuires car, had like 10,000$ custom headlights and a battery of other insanities as well. And the engine was not that reinforced I don't think... nothing crazy anyways.

12-13-2001, 06:09 PM	#10
nismo270r Premium Member Join Date: Oct 2001 Location: Lafayette, IN Age: 45 Posts: 715 Trader Rating: (0) Feedback Score: 0 reviews	It has been done...Garage Saurus in Japan did it on one of their cars...I'll post the pic up in a few...Gotta scan it first. :biggrin: (Edited by nismo270r at 8:35 pm on Dec. 13, 2001) __________________ "Life is a bitch...be it's pimp!" APC = A Piece of Crap =P

12-13-2001, 09:16 AM	#1
Azarael Leaky Injector Join Date: Dec 2001 Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	I just saw that other thread with the Lancia s4 link, turbo & supercharged <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/tounge.gif" border="0" valign="absmiddle" alt=':p'> Has it ever been done to a sr20DET?? hehe, I would love to see done with some nice mods to lighten and strengthen the engine. I'll let you people do the talking in this thread. (Edited by Azarael at 9:40 am on Dec. 13, 2001)

12-13-2001, 09:22 AM	#2
ca18guy Premium Member Join Date: Jul 2001 Location: Clearwater FL Age: 42 Posts: 3,226 Trader Rating: (0) Rides Gallery: ca18guy Feedback Score: 0 reviews	Someone posted a real looking pic of one, kinda pointless to twin turbo it, but it's there money.

12-13-2001, 09:28 AM	#3
Azarael Leaky Injector Join Date: Dec 2001 Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	Not twin turbo, but supercharge and turbocharge

12-13-2001, 09:31 AM	#4
DSC New Title Join Date: Aug 2001 Location: VA Posts: 3,454 Trader Rating: (0) Feedback Score: 0 reviews	I can't picture how that would work.  At what point would they come together?  It would be a lot cheaper just to buy a big ass turbo and turn up the boost.

12-13-2001, 09:33 AM	#5
ca18guy Premium Member Join Date: Jul 2001 Location: Clearwater FL Age: 42 Posts: 3,226 Trader Rating: (0) Rides Gallery: ca18guy Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from Azarael on 9:28 am on Dec. 13, 2001 Not twin turbo, but supercharge and turbocharge </td></tr></table><span id='postcolor'> Oh, never seen it on a SR.

12-13-2001, 09:36 AM	#6
Azarael Leaky Injector Join Date: Dec 2001 Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	http://www.fortunecity.com/silvers....p>Check out the Lancia Delta s4 (Edited by Azarael at 9:39 am on Dec. 13, 2001)

12-13-2001, 09:49 AM	#7
kitoro Zilvia Member Join Date: Jul 2001 Posts: 275 Trader Rating: (0) Feedback Score: 0 reviews	I don't see why it can't be done. I mean, if Hondas can take it, why can't the 240? there's just the problem of fitting it... anyone know if there's room? if you've got the money, you can do it but i don't see why you need to. SR20s have good low-end torque... so why bother? just extra money wasted IMHO. get a bigger turbo like DSC said.

12-13-2001, 11:36 AM	#8
crazycuban Zilvia Junkie Join Date: Nov 2001 Posts: 526 Trader Rating: (0) Feedback Score: 0 reviews	why twincharge?  sounds cool, but even if u want the low end torque, just get a small, ball bearing (so it spools quicker) turbo.  it'd be less money in the end, and u'd have a ball bearing turbo, which is always cool.   ca18, twin turbo sounds like it wouldn't work good, but in a rev speed i have theres an s14 with a red top, twin turbo, pushing 800 to the wheels.  thats still the highest i've seen an sr push.

12-13-2001, 11:58 AM	#9
DSC New Title Join Date: Aug 2001 Location: VA Posts: 3,454 Trader Rating: (0) Feedback Score: 0 reviews	You could get 2 turbos (1big 1small) and have the little one spool up first and then let the bigger one take over. Thats been done before and would be a lot less complex than haveing 2 innercoolers and all that extra pipeing. "ca18, twin turbo sounds like it wouldn't work good..." can you actually twin turbo an inline4? Or did they have a twin sequntial(sp?) setup like I just mentioned?

12-13-2001, 07:51 PM	#11
kitoro Zilvia Member Join Date: Jul 2001 Posts: 275 Trader Rating: (0) Feedback Score: 0 reviews	unless he's pumping over 500hp in that thing, i seriously don't see the need for a TT, even if it IS sequential.... ball-bearing should do the trick shouldn't it?

12-13-2001, 08:44 PM	#12
matic 240sx Join Date: Jul 2001 Location: las vegas Age: 42 Posts: 798 Trader Rating: (0) Rides Gallery: matic 240sx Feedback Score: 0 reviews	i dont know if you guys have seen it yet... but in the new turbo there is an integra with 4000 hp 4 cyl nitro burning teg...  how the #### does a 4 banger take that?

12-13-2001, 11:05 PM	#13
Kefabi Join Date: Dec 2001 Posts: 15 Trader Rating: (0) Feedback Score: 0 reviews	4000 hp? That has GOT to be a typo...

12-14-2001, 05:42 AM	#14
mistert Pearl White Mike Join Date: Oct 2001 Location: memphis TN Posts: 908 Trader Rating: (0) Feedback Score: 0 reviews	the lancia employed a helical supercharger and a turbocharger, with a bypass valve that was activated at a certain RPM by a centrifugal clutch. the point of this wasnt neccessarily to make monster power, it was to make monster power all the way through the powerband. a 1.8 litre engine with 470hp and 333 lb/ft of torque with all of the neccessary power available anywhere at the powerband? this was ideal for a rally car. in rally you want tons of instant response in the low RPM range for powering out of corners, which is where a supercharger is ideal, but you want loads of top end for straightaways, which a supercharger isnt very good at, but a turbo is ideal for. so why not just power the car on the supercharger and then switch to the turbo the second the turbo is spooled? this is a perfect design for rally, and would work great anywhere else, but keep in mind these cars were built by the manufacturer's racing team, with a giant budget, and an entire company's parts bin, which already included superchargers and turbochargers. if you want to undertake something wild like this, go ahead, but its going to be hard. as you can see the lancia delta at the time was mid engine, with a massive ass to store stuff, and an open front end in which they could stuff all sorts of shit, and it has a full kevlar body as well, which makes all the weight of this stuff less of a factor. anyways its very late/early and i should go to sleep instead of making very long posts. good day, sirs

12-14-2001, 05:45 AM	#15
ca18guy Premium Member Join Date: Jul 2001 Location: Clearwater FL Age: 42 Posts: 3,226 Trader Rating: (0) Rides Gallery: ca18guy Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from matic 240sx on 8:44 pm on Dec. 13, 2001 i dont know if you guys have seen it yet... but in the new turbo there is an integra with 4000 hp 4 cyl nitro burning teg... how the #### does a 4 banger take that? </td></tr></table><span id='postcolor'> Dyno's can't even read that high, so even if it did make that much power it would be speculation. 4000 seems like they guesstimated alittle to high.

12-14-2001, 05:46 AM	#16
mistert Pearl White Mike Join Date: Oct 2001 Location: memphis TN Posts: 908 Trader Rating: (0) Feedback Score: 0 reviews	and by the way, what would you actually do with something quite that crazy? the car was kevlar bodied and tube framed, and its still the reason they closed group B rally...because the car was so insanely fast and ended up getting people killed, in a series of highly publicised deaths at the time. sure it doesnt seem like that much, but in the full rally spec, the car did 2.8 second 0-60...on gravel. in a RWD car it'd be 10x as dangerous, if you could do anything other than just spin the tires

12-14-2001, 07:04 AM	#17
thewholefnshow Zilvia Addict Join Date: Nov 2001 Posts: 672 Trader Rating: (0) Feedback Score: 0 reviews	That was done like 6 years ago, look in super street 3 months ago, the centerfold car was a crazy acura integra with a dual system... the turbo ran 16psi and the super 4, the super was low rpm and fed the turbo so there was no lag. HKS developed it (I think) for the MR2's and they stoppeed because they were very $$$. But the tech has been around for ever, and I know for the fact that if you want the info, it was in Super Street... Or was it SCC, no, I am sure it was superstreet.. it was the McGuires car, had like 10,000$ custom headlights and a battery of other insanities as well. And the engine was not that reinforced I don't think... nothing crazy anyways.