B15 Sentra Forum banner

1 - 20 of 131 Posts

·
Hoosier Daddy?
Joined
·
6,000 Posts
Discussion Starter #1
Ok, so I have been quietly doing some leg-work on building/offering high-revving QR engines.. These engines will be used either for N/A application or for a turbo/supercharged application. My plan, is to build the first engine, and sell/install it to a customer who's interested. The goal is to build an 83-8500rpm capable motor, that has a fat powerband. I have sourced some radical N/A cams and springs/retainers that will support this. The cams will be test units from JWT, as will the springs. Here's a breakdown on them.. and the round-about prices/options..

Stage I Combo:

Complete QR long block
Custom forged steel crankshaft
Forged rods
JE forged pistons 10.8:1
Metal headgasket
JWT balance shaft removal kit
Prototype cams (still streetable, but noticeably lopey)
Prototype springs/retainers
Machine work to cylinder head to fit new springs
Stock ports
Acid dipped block (to clean) and head
Full blueprint and balance upon assembly
New timing components, seals, o-rings, etc..

**This is the first stage of upgrades... The motor will rev to 7300rpm, and will make around 200whp/160ft lbs of TQ. You can spray up to a 50 shot on it safely. This motor is sold as an all motor application only. Although peak power is only 200whp or so... the powerband will be A LOT fatter than a stock QR with bolt on's. Displacement is a 2.0 liter

Price- 2950.00 shipped to your door (You must return your stock motor for exchange)



Stage II combo:

Complete QR long block
Custom forged steel crankshaft
Pauter forged rods with ARP bolts
JE forged pistons (8.5:1 or 10.8:1)
Metal headgasket
JWT balance shaft removal kit
Prototype cams (still streetable, but noticeably lopey)
Prototype springs/retainers
Machine work to cylinder head to fit new springs
Stock ports
Acid dipped block (to clean) and head
Full blueprint and balance upon assembly
New timing components, seals, o-rings, etc..

**This engine will rev to 8000rpm, and will probably make somewhere around 220whp/170-180ft lbs of TQ all motor.. and if low compression pistons are chosen, in a turbo/supercharged application, it can hold 350whp safely. The powerband will be incredible, considering how far you can rev it out to. The cams are streetable, and it will run on 93 octane. You will need a standalone to take advantage of the 8000rpm rev-limiter. The displacement, is a 2.1 liter

Price- 3790.00 shipped to your door (you send your old motor back for a core charge)




Stage III combo:

Complete QR long block
Aftermarket Ductile Iron T-Sleeves (closes the open deck)
Custom forged crankshaft
JE forged pistons (8.5:1 or 10.8:1)
Pauter forged rods with ARP bolts
Metal headgasket
Cylinder head studs
JWT balance shaft removal kit
Main bolt studs
Prototype cams (still streetable, but noticeably lopey)
Prototype springs/retainers
Machine work to cylinder head to fit new springs
Stock ports
Acid dipped block (to clean) and head
Full blueprint and balance upon assembly
New timing components, seals, o-rings, etc..

**With this next setup, we go in, and install ductile iron sleeves. This process involves cutting out the stock sleeves, and having a machine press in new sleeves. Then, the block is re-decked, and bored with a TQ plate to ensure the bores are perfectly centered. This makes for a MUCH stronger block that can withstand a lot more power than the Stage I block. This also allows us to increase the bore size signifigantly, effectively increasing displacement. We also add cylinder head studs, and main bolt studs for the increased load. This engine N/A, will make 220-230whp/170-180ft lbs.. however, you can spray up to 125hp shot of nitrous on top of this, and it will be completely safe (as long as engine management is tuned correctly). In a turbo application, this engine will make 400whp no problem with a disgusting powerband. Displacement is a 2.2 liter

Price- 4950.00 shipped to your door (You return your stock motor for core charge)



Stage IV Combo:

Complete QR long block
Aftermarket Ductile Iron T-Sleeves (closes the open deck)
Custom forged crankshaft
JE forged pistons (8.5:1 or 10.8:1)
Pauter forged rods with ARP bolts
Metal headgasket
Cylinder head studs
Main bolt studs
Prototype cams (still streetable, but noticeably lopey)
Prototype springs/retainers
Machine work to cylinder head to fit new springs
Fully ported race head
Custom short runner intake manifold
JWT balance shaft removal kit
Acid dipped block (to clean) and head
Full blueprint and balance upon assembly
New timing components, seals, o-rings, etc..

**This setup is the ultimate for a full-blown N/A monster.. or a big-dog turbo setup. This engine will rev to 8500rpm, and make 240-250whp all motor. With a 125shot maximum, expect to be around 330whp and 300ft lbs of TQ. In a turbocharged application, this setup will handle 500-550whp no problem. With the ported cylinder head, and short runner intake manifold, it will make awesome top end power whether is N/A or F/I. Displacement is a 2.3 liter

Price- 6950.00 shipped to your door (You return your stock engine for core charge)


I will start offering these in August.. as we are still ironing out a few details.. Just thought I'd pass the info on to you guys and get some feedback. Please don't ask where you can order seperate parts.. I have put a lot of work into this, and I don't plan on someone copying it before we even get it off of the ground. These motors will put the Spec V/SE-R into the spotlight for sure in the road-course and drag strip competition. Lookout K20.. the QR is about to get a dose of steroids. :)

Also, if you are interested in working with me on any of this, please contact me at [email protected]

Travis
 

·
Registered
Joined
·
1,314 Posts
ShizITE man. THis is going to be great. Good work there Mr. Burelle. These are definatley what we call "bulletproof motors". Wow these motors and a turbo kit would make some nice power. BUT the big question is.... HOw will you be able to rev to these points without an ECU?

Krunal
 

·
Hoosier Daddy?
Joined
·
6,000 Posts
Discussion Starter #3
pLaTiNuMSpecV said:
ShizITE man. THis is going to be great. Good work there Mr. Burelle. These are definatley what we call "bulletproof motors". Wow these motors and a turbo kit would make some nice power. BUT the big question is.... HOw will you be able to rev to these points without an ECU?

Krunal
For now... it will be with either a Haltech E6X, or a (more expensive) Electromotive TEC III. You can also use some of the cheaper 750-800.00 units from overseas. They work great for N/A and low boost turbo setups. Also, I am betting that by year's end.. JWT will have some good news for us.

Travis
 

·
Hoosier Daddy?
Joined
·
6,000 Posts
Discussion Starter #4
Also, I may offer "do it yourself" kits in the future. These will reduce the cost of labor to do the machine work and installation that we charge.

Travis
 

·
Registered
Joined
·
189 Posts
i can't wait ;)
 

·
Registered
Joined
·
4,958 Posts
Honestly, I think the prices are pretty good.... I think I remeber reading/hearing about the RTR Spec-V not revving so high simply due to the tranny.. any thoughts/knowledge on that Travis?


**edit..

Why only a 50shot on the stage 1 as well? I'd think with the forged rods there would be room for more spray, or are they not extraordinarily beefy?
 

·
Hoosier Daddy?
Joined
·
6,000 Posts
Discussion Starter #7
lawngn0mex said:
Honestly, I think the prices are pretty good.... I think I remeber reading/hearing about the RTR Spec-V not revving so high simply due to the tranny.. any thoughts/knowledge on that Travis?
Actually, the RTR suffers because it's still on the stock stroke (stock crankshaft). It can only rev so high before piston speeds go through the roof. Also, power falls off up there, because cylinder filling sucks at high piston speeds. The power levels that I posted are probably a little conservative.. considering a K20 will make 245whp with cams and bolt-ons.

Travis
 

·
Registered
Joined
·
143 Posts
(You return your stock engine for core charge)
whats that mean?

Travis I think what your doing for da Sentra community is great keep it up bro.
 

·
Hoosier Daddy?
Joined
·
6,000 Posts
Discussion Starter #10
MvnSE-R said:
(You return your stock engine for core charge)
whats that mean?

Travis I think what your doing for da Sentra community is great keep it up bro.

You have to ship your stock engine to me.. This works on a core-basis. Meaning I have a few in stock, but have to replenish the stock block supply as I sell motors.
 

·
Canyon junkie! ( ^o^) <3
Joined
·
4,332 Posts
Wow! That's pretty good! :D
 

·
Hoosier Daddy?
Joined
·
6,000 Posts
Discussion Starter #12
Just wait.. I am putting one together for my old Sentra SE that's been sitting out back collecting dust for a year or so. It is fully gutted and will have the stage IV motor in it.

Travis
 

·
Registered
Joined
·
4,958 Posts
Trav4011 said:
Just wait.. I am putting one together for my old Sentra SE that's been sitting out back collecting dust for a year or so. It is fully gutted and will have the stage IV motor in it.

Travis
Boost or N/A :D
 

·
Hoosier Daddy?
Joined
·
6,000 Posts
Discussion Starter #14
Come on now.. I can't let ALL of the cats out of the bag just yet... :)

Travis
 

·
Registered
Joined
·
2,783 Posts
Holy NUTZ!!! Trav I commend you for your ability to achieve the first of firsts. Wow, the motor would have high compression if its going NA right? What gas can we safely use to prevent knock? If it's higher than 91...poor californians...oh wait I'm one of them :(
 

·
200,000?
Joined
·
1,448 Posts
ok, can someone help a n00b out here.

since this is talking about the QR which stock is a 2.5L engine, how are the displacement #'s going down and increasing from the stage I to the stage IV? is the displacement getting reduced to up the compression by resleeving?
 

·
Southern Shift Racing
Joined
·
2,511 Posts
OkToBeR said:
ok, can someone help a n00b out here.

since this is talking about the QR which stock is a 2.5L engine, how are the displacement #'s going down and increasing from the stage I to the stage IV? is the displacement getting reduced to up the compression by resleeving?
Different crank dimensions and rod lengths. ;)

Travis, thanks for keeping the qr25 community on your mind. Its nice to see that my dream of having 200 N/A whp out of my qr25 will be possible within the next year or so. I was considering selling my Spec and looking for a b13 sr20det, but this changes things.

And you're saying JWT might have good news for us by the end of this year??? I hope this isn't a joke. :(
 
1 - 20 of 131 Posts
Top