13 replies to this topic

[turbo_crx_si]

Currently i have a SOHC si motor turbocharged and i want to go for a DOHC (ZC) and turbo charge that so i can put low compression pistons in it and build the motor so i can hold at least 10-17 psi of boost. I find it hard to get parts for my stock motor. Has anyone ever donee this before (meaning DOHC-turbo in a 87 crx) because i wanna know if i would have to do a radiator relocation so the turbo will fit nicely or can i leave the radiator where its at.

OH and can u guys show me a site or someplace with info on the whole ZC swap.
Thanx for the help people

[CRX8Grand]

If your lookin to go with THAT much boost I would at least try to find a black top ZC that came from teh 1st gen tegs... its electronic advanced and you would have to convert the car to that with wiring changes(al though I think a harness CAN be bought from HASport)

I would recomend it due to new software from TurboEdit(guy took over sorta for Ghettodyne) and also ZDyne.

ZDyne is the #1 choice for a packaged ECU that works with boost.

Personally I want to go with a b20 or b18 to boost with ODB1 and Either Hondata or the free Uberdata...

The ZC is a straight forward shot, same as the d16a1 swap... there is a guide over at Hybrid honda or something... that and countless ppl have done the swap here.

[crx_86dx]

theres a site what a guy did this i will get the addrs but he did not have to me his radiator

[wilq]

Heres a pix of my 87 si dohc turbo.The engines a 87 d16a1 w/a greddy kit on it.This engine now resides in my 87 hf w/ pgm-fi conversion.Its been turbo for 35k miles and about 5 years with no problems.There are more pixs in my gallery.

[turbo_crx_si]

Does ur turbo rub up against the radiator? And does the motor drop perfectly into the car without having to deal with custom motor mouts and stuff

[wilq]

Radiator clearance is very tight.I`ve used both styles of 1st gen radiators.The full width si will fit if you shim the top mounts back about 3/4 of an inch.The hf/4spd rad fits without any mods.The si rad cools alittle better on the highway during long trips.The stock cooling fan will not fit w/ a turbo setup.I currently run a frontmount pusher fan on the hf rad.While the car isn`t moving i have to run the heater the keep the engine temp down.This is a small price to pay to have a dohc turbo 1st gen.I `ve made 3 trip to niagra meets with this setup at 9hrs each way an no problems.

[instigatorcrx]

Get the 96 civic radiator... Half width much better cooling... That's what I plan on doing...

[wilq]

It won`t fit 92 and new radiators have the filler neck on the top of the tank.THe 84-87 rad has the filler neck mounted on a 90 degree nipple off the back side of the upper tank to clear the upper rad support.

[b16a87civic]

i just put a turbo on my b16 in my 87 civic hb. i used the half size radiator and had a radiator shop put a double row core in it. the car doesnt run hot at all. ill try and post pictures soon.

[turbo_crx_si]

THats what i was planning to do n/e wayz, or get one of them racing radiators but i didnt wanna sspendd a lot of money on onee.

[wilq]

Here are some more newer pixs of my turbo 87 dohc hf radiator.The rad is out of an 87 crx hf and has an aftermarket electric fan.

[boman]

Will's car is really fast - I still dream about that 5 minute joyride I got to experience last summer.

JAKOB

[katulu]

I believe it's a del sol radiator that is a half-width, gives you plenty of room for a turbo,

sonny from crx.honda-perf.org did a nice build up, it's not done yet, but he's got a GREAT website


http://www.muller.net/sonny/crx/