i dont know if i should turbo my d16 or if i should just swap it out for a crv-tec what do you guys think?

 

Good question; I'm facing the same dilema. I've heard of some reliability issues with CRVTEC, but improperly tuned turbo is a good way to destroy an engine. What's the car going to be used for? Pure drag car, street/strip, autoX, or just a fun daily driver. I'd say what route you take depends on what the car will be used for. Good luck with whatever you decide.

 

built crvtec - at 9 pounds of boost on a D16 you'd run low 14s at best

 

Well, i am sure that this topic is exhausted, but asking again couldn't hurt. Iam also thinking about the same thing. I could do the turbo d16z6, or I could get a b16 or b18. Now I know that if i get the turbo kit for the d16z6, i will be pushing the limits of that lower end, and their could be engine failure in the years to come. And I also know that I could get the same performance from a stock GSR motor, with I/H/E. The whole stock motor thing sounds so good to me, even though turbo's are fun. I guess that it really is up to the driver.

swaps
1. swaps swaps get expansive, always expet to spend more than you were planning to do.
2. with a swap you are creating a new benchmark baseline with a stock motor.

turbo
1. most turbo kits come complete minus intercooler in greddy's case.
2. basic turbo kit can cost half of the price of a swap.
3. greddy kit is carb legal.
4. force feeding the d series motors WILL decrese the life of the motor.

Just some thigs that I think about.

 

swap.

Now what motor to use....

na or boost...

etc etc etc

 

do a B-series swap..then boost that

 

swap all the way... b16a2 or b18c1 or even type r its all up to you

 

you will have way more options then staying with your stock motor

 

SWAP SWAP SWAP SWAP SWAP SWAP SWAP SWAP SWAP SWAP SWAP...............

 

Swap then boost it

 

swap plain and simple.

 

ENGINE SWAP.
For the money you will spend for a decent turbo, why not add a little more and get a DOHC VTEC swap?

I debated the same thing that you are now back when I had my old 1992 Si hatchback. I was running 15.6 on a STOCK motor with only JUST an intake - that's it. I thought that since my car ran so good I'd just turbo or super charge it, but I decided to get a swap instead.

I'm glad I did, because every boosted SOHC VTEC I came across afterwards got thier asses handed to them by my stock swap with just bolt-ons.

Reasons to get a swap over boosting a SOHC motor?

1. Power. The average B16A swap puts down 140-150whp, while the B18C1 pushes 145-155whp, and the B18C5 pushes 160-175whp with just minor bolt-ons or even STOCK. Your boosted SOHC will be LUCKY to see 135whp on the lowly 5-6psi that the motor can handle.

2. Reliablilty. How much boost can your motor handle safely? How many miles do you have on your motor? A motor with 70,000+miles will not take kindly to boost for long periods of time. A STOCK swap will give you the same and more power and still have TONS of room for improvement.

3. Cost. What? "But the turbo kit is only $1,500 or so..." Sure it is but remember, 5psi isn't **** for boost. If you plan on keeping up with swaps you'd better be pushing at least 8-10psi, and that would require a stronger BUILD on your motor. SOHC bottom ends cannot handle higher levels of boost, and building the motor will only cost MORE and what happens when you BLOW the motor? I also have to mention the large amounts of TUNING that you will need to boost more reliable, and that's not cheap either.

4. Strength of parts. The SOHC trannies are piles of ****. I went through 3 of them on my old 1992 Si. Since going DOHC I've never harmed a tranny. Axles on the SOHC suck too. While the DOHC isn't bulletproof, they do take more abuse and they are equal length so torque steer is minimized too.

5. Aftermarket support. DOHC VTEC motors have THE MOST support from aftermarket companies. This will only increase. Pistons, rods, turbos, cams, sleeved blocks, sleeves, clutches, trannies, LSDs, intakes, manifolds, etc. are all much more abundant for the twin cam stuff.

6. Upgradability. How far can you go on a boosted SOHC? With a baseline of maybe 110whp vs. 140-175whp you will always be at a disadvantage. The DOHC motors will always make more power and last longer. You will have to really beef up the SOHC and by then what's the point? It will still blow and cost more money, and it will always put out less power.

Please don't take this as hating on SOHC motors. I'm actually trying to help you out. I would take a stock B18C1 any day over a boosted SOHC for the reasons listed above.

You could have fewer miles on a stronger motor with a swap, or you could boost a weak, aging motor and end up broke trying to fix it.

Your choice.

Good luck!

 

this will be going in a 92 si
i know i should swap it but then i dont know what to swap in it?
i want it for a daily driver and going to the track on the weekends
i was thinking of a crv-tec but then i was thinking of a b16 that was boosted?
what b16 turbo should i go with?

 

I say go with a swap if you are going to drive every day

 

if i go with a swap then should i just go all motor or turbo?

 

get the swap you will have alot better platform to build on from there.