Heres something I was working on last week.

Its a imported CRX del sol, (higher comp b16 engine) 10.6:1 compression ratio.

Spec will be
Standard internals.
Race-Tech Manifold,
Custom boost pipes,
RC440 injectors.
Evo Turbo
Turbosmart 38mm external wastegate
Chipped ECU.

I've got the boost pipes and manifold done, just need to add the wastegate takeoff to the manifold. Downpipe then can map it Should make 260-280 and retain stock reliability with better fuel economy

 

loving the manifold ricky ,

top work fella ,

 

yeh nice work

 

That looks lovely

 

That welding looks superb. Id love to be able to weld like that.

 

nice , love it

 

Heres a few pictures now its finished.

 

Why standard internals?

 

cool! , but im the same as above , why not forged or something?

 

Cheaper. Most stock internals can take alot more power than most people give them credit for. Failures are normally down to bad mapping not weak standard internals.

 

Why not? Generally speaking forged internals have a lower compression ratio, so this will drive better off boost, standard internals saves the rebuild cost, last longer, (tighter clearance). Other than strength theres no real downside to stock internals, and these are IMO well within there limit's. 20,000+ miles on some of the stock engine'd cars we've done.

 

Totally forgot i'd put this car up on here.

Its still going strong.... Very strong.

Heres the results when we put it on the dyno.

Line marked "1" is the car with breathing mods, i.e. exhaust and filter, it made 172hp.
Line marker "2" is the standard torque.
The top line is the torque when turbo'd (notice even at 2500rpm's its got more than standard torque )
Red line is the power when turbo'd.
Blue line is power ATW. (for those of you that know, we had serious traction problems on the dyno (cheap tyres, you can't tell some people!) this meant we had to strap it down really hard, which probably lost us another 10hp ATW.



Boost was curve was set to 0.6 bar at 5000rpms and 1 bar at the limiter. This allows the car to put down nice power on the road, if it had an LSD and better tyres we could run more in the midrange.

The cars done 15,000miles, the owner called me the other day and said "vtec's not working" i said when did you last check the oil, he said, "I cleaned under the bonnet about 4 months ago" (they have a pressure switch in the head which when below a set level it doesn't allow vtec to work). That shows the level of maintenance it gets.

100% stock engine, still untouched.

 

hello, what CR is it?

 

Im impressed by that, whats the power limit on stock internals?

 

Normally the mapper is the weakest link.

 

Excellent fab work...great power results too!

 

See the second line of the thread! 10.6:1

 

Bet that shifts!!!. Always had a soft spot for these.

 

We've ran 120mph+ terminals in an 1100kg car, i'd say well over 400 on a totally stock engine. We'r putting 1 on the dyno in the morning that should make over 400hp That will be head and shoulders above any other stock engine'd car. We've done around 50 in the past couple of years, about 5 are above 400hp.

It drives like/better than a stock car till you floor it. They do better MPG as well.

 

So impressed with what you get out of these (1.6 aren't they)? Out of interest what sort of money is it to convert a totally stock engine to say 300bhp, turbo/management/manifolds etc? I realise there are no doubt lots of ways you can go about it just seems a pity honda never turbo'd the engines in the first place lol as they're so strong!

 

dissagree, i'd bet you'd never notice a diff in off boost driveability with low comp pistons
You can run more ignition advance with low comp
you can run more boost with low comp, safely.......

 

wow 10,6:1 thats a lot!
so you are running very les Adv? do you have a screenshot from your adv map?
Would be interesting!

 

I think you'll find that they use the mild cam setting off boost and the minute the car starts to make decent boost they flick over to the wild setting meaning that although the static compression is quite high the dynamic on vtec is fine for turbo'ing.

 

You loose about 20lb's feet off boost, dropping from 10.6 to around 9. This is noticeable as its around 20% loss in torque. But I actually meant, they drive great as its just like the stock car with over double the power.

It is a shame, to be honest, we've turbo'd most stock engines. I.e. 210hp from a saxo VTS. It is a 1.6 yes. Its amazing that the evo turbo we use on these spools earlier and makes more power per psi than it does on an evo haha.

You have to use the "big cam" to promote spool sometimes, soon as the engine will flow enough we engage vtec.

You'd be VERY suprised, but sorry we can't give that away

 

Also, we've just made 414hp with a bone stock b18c engine, i'll update the intergra thread now.

 

Any figures on your engine yet? Also your using a compound set-up on the Evo aren't you? What turbo's are you using on that and when are you seeing boost?

 

Not yet, mines undergoing lots of changes at the mo. Same with the Evo.

Working on another couple of twins as well