I have some questions that have probably been asked many times before

[punkzdriver]

Hi,
I have some questions that have probably been asked before, and/or involve my plans that dont make sense to you. That is all fine, fair and good if you can at least give me some info and/or point me in the right direction.
I am not new to nissans, and or car forums, and or the internet, but still need some info.

Basically, I am looking to build a grenade-proof SR20DE. I would like to get to as close to 200whp as possible, but I know that will be difficult without going turbo. Again, MY goal is to build an SR20DE with the intention of staying non-turbo for a few reasons. One of these reasons is that it is going in a Datsun 1600, which requires a good deal of additional work to fit a turbo and associated plumbing. I have other reasons for staying non-turbo as well. My goal isnt an exact hp number so if you tell me I will never get the power I want, and/or spend more than its worth, you are not helping me. Again, I want to stay non-turbo. I would however like to incorporate an ITB set-up or a couple of reasons.

If you are still with me on this, I would like to know if anyone can recommend a shop/builder/member/thread/post that are familiar with building the SR20DE. I am looking to do the work myself, but would like to get more info. Obviously there is much more info on building the SR20DET, for many good reasons, but again, its my build and I want to stay non-turbo. Primarily right now I am looking at gathering info, coming up with a build plan, and sourcing parts as my budget permits. This is something I plan on doing over a good length of time, so time is on my side.

Ive been a member on many different forums over the years, twinturbo.net, quattroworld, audizine, fourtitude, zcar, 311s.org, ratsun, toyotanation, etc. I know help and attitudes can differ. Right now just looking for some helpful info.

Thanks in advance

[TheRoadShark]

For building a SR20DE, might wanna look in the sentra sub forum, more of a chance of finding non turbo SR20 mods. Not many people in the 240 section seem to do SR work that isn't turbo based. TMK even getting a KA to the 200hp mark from the 155 stock is both difficult and insanely expensive. One or two people on here have done it. Getting the 2.0L SR seems like an even bigger task. Dollar per hp, turbo is more cost effective for bigger gains in the long run, so that's what most people do. Not many people want to invest thousands of dollars for a 50hp gain. Just how it is. Having said that...

ITB kit https://www.efihardware.com/products/c1 ... -Body-Kits

High revving mod, courtesy of our own tech pages http://www.nicoclub.com/archives/how-to ... -head.html

My best blind swing would be to go with the ITB's, make it high revving, port polish and cam the top end, and bore and stroke the bottom end go for higher compression.

Beyond that, not sure how much else there is out there. Hope your idea pans out.

[2_Liter_Turbo]

If you want decent N/A horsepower out of an SR, go with a VVL head. Stock HP is 185-ish at the crank, throw some N1 cams, Supertech valve springs, good exhaust work, and a tune; and you should be decently over 200 whp. It's not the cheapest option, but it's a better starting point. Most expensive part is the head conversion parts, the head itself is around $300 bucks.

[AZhitman]

^ All great info.

I can refer you to the foremost builder of SR-powered Roadsters in the US. One of his builds was recently in the Garrett booth at SEMA, and he's built countless other turbo and non-turbo SR-powered Roadsters that are simply phenomenal. He knows the SR inside-out. His latest build is a VVL-head NA motor with lots of trick mods and pulls like a freight train.

Here ya go: http://www.krdroadsters.com/about-us

[2_Liter_Turbo]

I saw that car on our way out of SEMA. It sounded great!

[punkzdriver]

For building a SR20DE, might wanna look in the sentra sub forum, more of a chance of finding non turbo SR20 mods. Not many people in the 240 section seem to do SR work that isn't turbo based. TMK even getting a KA to the 200hp mark from the 155 stock is both difficult and insanely expensive. One or two people on here have done it. Getting the 2.0L SR seems like an even bigger task. Dollar per hp, turbo is more cost effective for bigger gains in the long run, so that's what most people do. Not many people want to invest thousands of dollars for a 50hp gain. Just how it is. Having said that...

ITB kit https://www.efihardware.com/products/c1 ... -Body-Kits

High revving mod, courtesy of our own tech pages http://www.nicoclub.com/archives/how-to ... -head.html

My best blind swing would be to go with the ITB's, make it high revving, port polish and cam the top end, and bore and stroke the bottom end go for higher compression.

Beyond that, not sure how much else there is out there. Hope your idea pans out.

I will try in the sentra sub forum, but mine will be RWD so Im looking for more specific information. I understand the cost/gain equation with trying to get hp out of an NA SR20, but I have my reasons for wanting to do it. I also have reason for my preference of the SR over the KA. You blind swing is what my plan was. Thanks for the tech page link!

[punkzdriver]

If you want decent N/A horsepower out of an SR, go with a VVL head. Stock HP is 185-ish at the crank, throw some N1 cams, Supertech valve springs, good exhaust work, and a tune; and you should be decently over 200 whp. It's not the cheapest option, but it's a better starting point. Most expensive part is the head conversion parts, the head itself is around $300 bucks.

Thanks for the suggestions! I have been referred to the VVL head once before. I think the conversion is worth it.

[punkzdriver]

^ All great info.

I can refer you to the foremost builder of SR-powered Roadsters in the US. One of his builds was recently in the Garrett booth at SEMA, and he's built countless other turbo and non-turbo SR-powered Roadsters that are simply phenomenal. He knows the SR inside-out. His latest build is a VVL-head NA motor with lots of trick mods and pulls like a freight train.

Here ya go: http://www.krdroadsters.com/about-us

Perfect! Just what I am looking for. Hopefully he is as generous with his info as Michael is at Spriso. I would like to get more info on that engine and car. Again, on the east coast, I plan on building the engine out here over time. Would like to source parts as I find them. Are you on 311s.org?

[TheRoadShark]

For building a SR20DE, might wanna look in the sentra sub forum, more of a chance of finding non turbo SR20 mods. Not many people in the 240 section seem to do SR work that isn't turbo based. TMK even getting a KA to the 200hp mark from the 155 stock is both difficult and insanely expensive. One or two people on here have done it. Getting the 2.0L SR seems like an even bigger task. Dollar per hp, turbo is more cost effective for bigger gains in the long run, so that's what most people do. Not many people want to invest thousands of dollars for a 50hp gain. Just how it is. Having said that...

ITB kit https://www.efihardware.com/products/c1 ... -Body-Kits

High revving mod, courtesy of our own tech pages http://www.nicoclub.com/archives/how-to ... -head.html

My best blind swing would be to go with the ITB's, make it high revving, port polish and cam the top end, and bore and stroke the bottom end go for higher compression.

Beyond that, not sure how much else there is out there. Hope your idea pans out.

I will try in the sentra sub forum, but mine will be RWD so Im looking for more specific information. I understand the cost/gain equation with trying to get hp out of an NA SR20, but I have my reasons for wanting to do it. I also have reason for my preference of the SR over the KA. You blind swing is what my plan was. Thanks for the tech page link!

Shouldn't matter whether FWD or RWD when it comes to how to mod the block / head for more power. The main differences would be intake mani (which doesn't matter since you're going ITB). You're more likely to find non turbo SR builds in the sentra forum is all. I also agree with the choice of SR over KA for what you're building - lighter, smaller, higher revving - just showing the difficulty of getting extra power out of a non turbo engine even with a larger displacement engine.

2Liter and Hitman give primo input - should help out a lot. Really interested to see how this pans out.

The tech pages have a lot of great info - if you haven't yet, you should scroll through them sometime

[2_Liter_Turbo]

If you have any SR20VE / VVL questions, let me know. I happen to have one, lol. I also did the swap myself and did the whole harness myself. Either PM me or post in this thread so I see it!

[AZhitman]

Hopefully he is as generous with his info as Michael is at Spriso.

Not sure. I wouldn't expect a whole lot of freebies, because he's busy building cars... but he's a really good dude.

Are you on 311s.org?

I was, a long time ago. No real need, since I run DatsunForum.

[punkzdriver]

Hopefully he is as generous with his info as Michael is at Spriso.

Not sure. I wouldn't expect a whole lot of freebies, because he's busy building cars... but he's a really good dude.

Are you on 311s.org?

I was, a long time ago. No real need, since I run DatsunForum.

I was able to contact Kevin, thanks for the referral, and he seems to be a really good dude. Sharing a lot and very helpful!
I will have to check out your forum.

[240probs]

Jgycustoms are awesome guys to get into contact with as far as na and det guys go for sure!

[2_Liter_Turbo]

JGY has the worst reputation on the planet, they are absolutely horrible to deal with. I wouldn't recommend them to my worst enemy.