Silvertop torque?

Plumpsnake21 · 09-29-2009, 01:42 AM

Hey everyone i just got a mr2 with a blown engine for dirt cheap, and i was wanting to put a silvertop in it. The only worrys that i have is that, while it has decent hp, it still has not much torque, wich is where it really counts.
So i was wondering what the best way to get torque out of the silvertop is? Internals? supercharging? what will work best. About how much torque/hp can u pump out of this engine without supercharging?

Any help would be appreciated, thnx

Raptor13x · 09-29-2009, 03:28 AM

If you like an engine with lots of low-end grunt, avoid the 20v- just pick up an ordinary supercharged 4agze. The swap is easier and cheaper anyway.

The 20v has slightly more torque than the ordinary 4age, and makes it at a much higher RPM. It's pretty weak down low. The 20v doesn't really handle boost very well, and it's already tuned close to it's max, so you aren't going to get much more out of it reliably.

If you like winding the engine out to 8k+ rpm, the 20v is great, but it sounds like you would enjoy the 4agze better.

mr220v · 09-29-2009, 09:14 AM

The silvertop is less on the peaky side than the blacktop.

No torque? I've always considered both motors to be an improvement over the 16v in this regard. Keep in mind that 1.6L NA motors are only going to be so good. Autoxer's that I talk to are generally happy with the motor.

espguitarist33 · 09-29-2009, 10:28 AM

as far as boost goes...i've seen a few stock silvertops running very mild boost to bump up the low end...and i've also seen a low comp one with a turbo running around 430 hp...

on my silvertop i hope for 2-4 psi on like one of the smallest turbos i can find for a really quick spool and a broader powerpand

Plumpsnake21 · 09-29-2009, 01:51 PM

Quote:

Originally Posted by Raptor13x

If you like an engine with lots of low-end grunt, avoid the 20v- just pick up an ordinary supercharged 4agze. The swap is easier and cheaper anyway.

The 20v has slightly more torque than the ordinary 4age, and makes it at a much higher RPM. It's pretty weak down low. The 20v doesn't really handle boost very well, and it's already tuned close to it's max, so you aren't going to get much more out of it reliably.

If you like winding the engine out to 8k+ rpm, the 20v is great, but it sounds like you would enjoy the 4agze better.

Well i realize that the 20v doesnt handle boost well, but im not one of those people who plans on putting a turbo on a engine with stock internals. What i would like to do is build the engine up, get some good internals that can handle the boost. And then once ive done that, maybe supercharge or turbo, id like to supercharge since thatl give me some better lowend.

IDon'tKnow · 09-29-2009, 02:26 PM

You don't want to put a roots type supercharger on a 20V.... it's just a bad idea IMO.

A Rotrex supercharger would pair well, but that's not cheap, and I've only ever seen it done on kit cars. So that would be uncharted territory.

If you are in it for the long haul and don't mind spending lots of $$$ & time, than I would say the Silvertop is a good choice. If you're wanting to make the most of your $$$'s I'd advise you to swap in a GZE and eventually change over to a turbo.

Plumpsnake21 · 09-29-2009, 05:02 PM

Quote:

Originally Posted by IDon'tKnow

You don't want to put a roots type supercharger on a 20V.... it's just a bad idea IMO.

A Rotrex supercharger would pair well, but that's not cheap, and I've only ever seen it done on kit cars. So that would be uncharted territory.

If you are in it for the long haul and don't mind spending lots of $$$ & time, than I would say the Silvertop is a good choice. If you're wanting to make the most of your $$$'s I'd advise you to swap in a GZE and eventually change over to a turbo.

Thnx. Ya i was looking at some of the rotrex superchargers. It would def be somehting i would have to save for. But im the type of person that would rather make their engine tough enough to handle a lot of boost before actuallty boosting it. But i dont mind running a stock silvertop until then, its better than what i have. And the only reason i dont really wana go with the gze is because theres not that much more that you can do to it.

IDon'tKnow · 09-29-2009, 05:17 PM

Quote:

Originally Posted by Jackstand Queen

Stock SC vs. Stock 20v . .. . . . . SC wins

SC with basic performance mods (BPU's) vs. 20v with BPU's . . . .. . SC wins

SC with 14 lbs of boost, racing exhaust, oversized throttle body beats any naturally aspired 20v, 16v etc.

SC beats N.A., and so do turbos.

The only setup in which a 20V outperforms a GZE is a very pricey custom turbo or maybe Rotrex supercharger.

It is important to be realistic about your goals. If you have no idea how you are going to come up with a spare $10-$20k over the next five years I'd stick with the GZE. Then again, that's the hypothetical responsible me speaking; in actuality I'm the guy constantly trying to devise a way to way to make 500 near linear hp out of a 4AGE.

como · 09-29-2009, 06:23 PM

STROKER!

Although if you're going to completely rebuild it from the ground up, why not drop in a small v6?
mmm, torque...

mr220v · 09-29-2009, 06:27 PM

You'd go beams before v6. No firewall cutting.

mr3 · 09-29-2009, 08:47 PM

Blasphamy. Honda does not go into the mr2. Repeat that with me. HONDA DOES NOT GO INTO THE MR2. I'm at the end of the 20v swap and I'm kinda thinking I shouldve just went with the BEAMS swap. I have a welder or I could have taken it to a speeed shop to have them weld it for me but untill this thing starts and runs I dont want to say anything till I experience it.

Plumpsnake21 · 09-29-2009, 11:06 PM

Quote:

Originally Posted by mr3

HONDA DOES NOT GO INTO THE MR2.

Well said man.....well said.

Ok so lets say im gonna do the 3sgte swap, i looked at some other threads and what i was seeing is that it would cost about 4000. Is that right, or could someone get away with a swap for less?

espguitarist33 · 09-29-2009, 11:29 PM

i'm not a purist of anything....but i'm anti honda....i will have no respect if someone puts any (other then nsx) honda motor in any cars. the nsx is an exception to my rule

put a nissan beast or someting of that sort in there!

mr3 · 09-30-2009, 08:18 AM

I guarentee the 3sgte can be swapped in for less if you search and find deals on everything. Figure 1500 for motor, 500 for parts if you want to replace while it's out. 250 for exhaust. 350 for wiring then other parts. You can swap it in for less but with any swap it's hard to keep to the budget.

09-29-2009, 01:42 AM	#1 (permalink)
Plumpsnake21 No Skills Join Date: Sep 2009 Posts: 7 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Silvertop torque? Hey everyone i just got a mr2 with a blown engine for dirt cheap, and i was wanting to put a silvertop in it. The only worrys that i have is that, while it has decent hp, it still has not much torque, wich is where it really counts. So i was wondering what the best way to get torque out of the silvertop is? Internals? supercharging? what will work best. About how much torque/hp can u pump out of this engine without supercharging? Any help would be appreciated, thnx

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09-29-2009, 03:28 AM	#2 (permalink)
Raptor13x Legendary Join Date: Apr 2006 Location: Farmington Hills, MI Posts: 3,989 Thanks: 7 Thanked 40 Times in 34 Posts My Google Map iTrader Rating: (5/100% )	If you like an engine with lots of low-end grunt, avoid the 20v- just pick up an ordinary supercharged 4agze. The swap is easier and cheaper anyway. The 20v has slightly more torque than the ordinary 4age, and makes it at a much higher RPM. It's pretty weak down low. The 20v doesn't really handle boost very well, and it's already tuned close to it's max, so you aren't going to get much more out of it reliably. If you like winding the engine out to 8k+ rpm, the 20v is great, but it sounds like you would enjoy the 4agze better.

09-29-2009, 09:14 AM	#3 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 1,791 Thanks: 13 Thanked 139 Times in 117 Posts iTrader Rating: (9/100% )	The silvertop is less on the peaky side than the blacktop. No torque? I've always considered both motors to be an improvement over the 16v in this regard. Keep in mind that 1.6L NA motors are only going to be so good. Autoxer's that I talk to are generally happy with the motor.

09-29-2009, 10:28 AM	#4 (permalink)
espguitarist33 Cage Fighter Join Date: Nov 2008 Location: west chester PA Posts: 415 Thanks: 4 Thanked 5 Times in 5 Posts iTrader Rating: (2/100% )	as far as boost goes...i've seen a few stock silvertops running very mild boost to bump up the low end...and i've also seen a low comp one with a turbo running around 430 hp... on my silvertop i hope for 2-4 psi on like one of the smallest turbos i can find for a really quick spool and a broader powerpand

09-29-2009, 02:26 PM	#6 (permalink)
IDon'tKnow but I can find out. Join Date: Sep 2009 Location: Huntsville, AL Posts: 131 Thanks: 4 Thanked 2 Times in 2 Posts iTrader Rating: (1/100% )	You don't want to put a roots type supercharger on a 20V.... it's just a bad idea IMO. A Rotrex supercharger would pair well, but that's not cheap, and I've only ever seen it done on kit cars. So that would be uncharted territory. If you are in it for the long haul and don't mind spending lots of $$$ & time, than I would say the Silvertop is a good choice. If you're wanting to make the most of your $$$'s I'd advise you to swap in a GZE and eventually change over to a turbo.

09-29-2009, 06:23 PM	#9 (permalink)
como Road Warrior Join Date: Jan 2009 Location: Southern Maine Posts: 519 Thanks: 13 Thanked 8 Times in 7 Posts iTrader Rating: (2/100% )	STROKER! Although if you're going to completely rebuild it from the ground up, why not drop in a small v6? mmm, torque...

09-29-2009, 06:27 PM	#10 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 1,791 Thanks: 13 Thanked 139 Times in 117 Posts iTrader Rating: (9/100% )	You'd go beams before v6. No firewall cutting.

09-29-2009, 08:47 PM	#11 (permalink)
mr3 Cage Fighter Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 848 Thanks: 19 Thanked 26 Times in 25 Posts iTrader Rating: (2/100% )	Blasphamy. Honda does not go into the mr2. Repeat that with me. HONDA DOES NOT GO INTO THE MR2. I'm at the end of the 20v swap and I'm kinda thinking I shouldve just went with the BEAMS swap. I have a welder or I could have taken it to a speeed shop to have them weld it for me but untill this thing starts and runs I dont want to say anything till I experience it.

09-29-2009, 11:29 PM	#13 (permalink)
espguitarist33 Cage Fighter Join Date: Nov 2008 Location: west chester PA Posts: 415 Thanks: 4 Thanked 5 Times in 5 Posts iTrader Rating: (2/100% )	i'm not a purist of anything....but i'm anti honda....i will have no respect if someone puts any (other then nsx) honda motor in any cars. the nsx is an exception to my rule put a nissan beast or someting of that sort in there!

09-30-2009, 08:18 AM	#14 (permalink)
mr3 Cage Fighter Join Date: Jun 2008 Location: Plymouth Mtg, Pa Posts: 848 Thanks: 19 Thanked 26 Times in 25 Posts iTrader Rating: (2/100% )	I guarentee the 3sgte can be swapped in for less if you search and find deals on everything. Figure 1500 for motor, 500 for parts if you want to replace while it's out. 250 for exhaust. 350 for wiring then other parts. You can swap it in for less but with any swap it's hard to keep to the budget.