D-Rob

Posted this in the model-specific CR-V forum, but I figured this section could probably get a kick out of it too.

We have just recently wrapped up a big engine build/turbocharging project on a 1998 Honda CR-V.

The original plan was to simply place a small turbo setup on the existing stock engine, and keep power in the 230-250whp mark for a while.

Well, a week after the customer placed an order for the turbo components, he decided that a built engine would be a good deal more fun. And who am I to disagree?

So, we sourced a low-mileage JDM B18B Integra LS engine, tore it down, installed aftermarket rods/pistons/valvetrain/cams into it, and went to work making a custom turbo setup for the CR-V chassis.

Here's the finished project.



I don't have any engine bay pics off-hand, but I will grab some shortly.

The setup consists of the following:

B18B block
81mm CP 9.5:1 pistons
Eagle H-Beam rods
ACL Race bearings
OEM oil pump
OEM head gasket
ARP head studs
SuperTech valve springs / retainers
Crower 404 camshafts
OEM B20 CR-V intake manifold

Synapse Turbo "Max A/C" turbo manifold
Garrett T3/T04e 57-trim turbo
TiAL MV-S wastegate
Synapse Turbo 2.5"->3" stainless v-band downpipe
IMW-Spec 2.5" charge piping
Synapse Turbo intercooler
TiAL 50mm BOV

Injector Dynamics 1,000cc injectors
Walbro 255lph fuel pump
Hondata 4bar MAP sensor
JS manual boost controller

Tuned with Neptune

Here are the results, @ 21psi on E85.

390whp / 340wtq


And a comparison of the wastegate pressure (11psi) on 93 octane versus the 'high boost' setting on E85.



I am almost certain the longer-runner'd OEM CR-V intake manifold is most of the reason the torque drops off so hard up top, but the client really wasn't worried about it. What he DID like, however, was the abundance of torque everywhere.

After we finished tuning the car, the propeller shaft was reinstalled to the rear diff, and I took a preliminary test drive of the vehicle. My first impressions? Holy hell! This is very un-Honda-like. The torque delivery is very early (even considering the lower compression, and smaller displacement the car features now compared to the stock CR-V's B20), and while the car still spins the tires pretty heftily in second gear, it definitely has a noticeable amount of grip compared to the FWD Honda's I am used to driving. The car is super fun to drive.

I will grab some videos of the car driving here shortly, along with better engine bay pictures as well early next week.

Questions?

- Derek

EDIT: Here's a video the client uploaded of the dyno

http://www.youtube.com/watch?v=nBPiCme4q_A

EDIT AGAIN: Here is some quick street footage. Car load of people (2 being 230+lbs each), full stereo, etc...

http://www.youtube.com/watch?v=cj3HDFyCHy8

And yes, I know I can't drive.

K7-1Ktrevor

can't wait to see vids of it. good numbers and sweet crv. but the charge pipes are hideous. Im sorry.

D-Rob

The charge pipes were extended off the intercooler initially to hide the couplers from view.

But, when the time came to fit the OEM bumper over everything, so much had to be removed to even get it over the support.

JDM IN MY SOL

Nice build. Tuned in for pics and vids. Glad you guys will be tuning my car in the spring!

WhiteSlips

Not your typical soccer mom CRV, that's for sure! In for engine bay pics....

Furyof4

Badass

D-Rob

Video added of dyno session

Turbo-LS

iTrader: (4)

Ive always wanted to pick up a crv for a beater and boost it, good work guys. Everythign is nice but the FMIC and piping, id hit it with some black spray bomb

D-Rob

The customer is currently throwing around the idea of making a custom "lip/skidplate" to cover what had to be removed for the intercooler to fit.

effin

iTrader: (1)

ooweeee i wanna see an in car video sheesh

GEN2 LS

iTrader: (3)

very stout numbers!! front end looks mean

da9jake

Very cool. Ive have been thinking about this alot in the back of mind lol. Now I just need to convince my mom to turbo her 05 CR-V.

ohsnapzafingcu

iTrader: (2)

+1 for incar vids

Dtownxjoey

sick car.... imagine the newer crvs with the k24a1 in it like this

austin.sin.slmr

why did you guys switch from the b20 aand go with a b18?? sick build tho look way cleaner if he did a lip/skip. over all i love it...

fast2camciv

oh yes! really really want some engine bay shots and some in car vids of a nice launch and bangin through the gears....the b20 5spd gearing is pretty short and i want to "see" what acceleration is like under boost (espescially first gear lol) any issues with the trans shifting quickly? what is redline? my 5spd has issues shifting at 6500 right now...cant imagine how much its going to hate me at 7500 and 350+whp lololol

0mtber

iTrader: (2)

Cool Car

Jaker

Thicker sleeves.

mhart

it would be killer if it was AWD.

kyden

it is....

LightningTeg

Its 4wd, and the rear wheels dont engage until they see slipping in the front, so its not even true 4wd.

Sick car. Those cams should be making power all the way till 8000 with a shorter manifold

Gunmetal_B20_Hatch

iTrader: (9)

I was going to say something about that graph... Doesnt quite add up to me... 404 cams should be making power for another 500-750rpm. Maybe all the valve overlap on a FI motor...

gwiffer

Is this a 5 speed manual?
Is this the same rt-4wd system in the ef civic wagons?
Will the driveshaft/rear diff/rear axles hold the torque from this motor?

I'm very impressed...

Mattb16teg

Nice work Derek!

LightningTeg

No its the intake for sure. Probably the turbo as well not being able to breath up top. Im making 502whp on 404s with an SC61 @ 27psi