Engine dilemma.....

OK, I have been thing this over and over, and I think I've finally settled on a plan. Having a boosted VTEC is an itch I need to scratch :o

So, I'm going to go with the turbo, run it at a sensible low boost on the current stock internals (I'll throw a crank girdle in though), then over the next few months I'll buy low-comp pistons, rods etc and pull the engine over the winter months and build it myself for some real boost.

I'm pretty much set on that plan now, it means the cost will get spread out, I'll have a nice power increase now, then more to come next year :cool:

It also means you'll get another project thread to follow ;)
 
Are you after

A blox manifold for T3 turbine housing turbos
A GT28RS with T3 housing and 0.82 A/R turbine
RC550 injectors
Tial 38mm wastgate
Big intercooler
Downpipe and wastegate for said setup.

By any chance? ;)
 
DreXeL said:
OK, I have been thing this over and over, and I think I've finally settled on a plan. Having a boosted VTEC is an itch I need to scratch :o

So, I'm going to go with the turbo, run it at a sensible low boost on the current stock internals (I'll throw a crank girdle in though), then over the next few months I'll buy low-comp pistons, rods etc and pull the engine over the winter months and build it myself for some real boost.

I'm pretty much set on that plan now, it means the cost will get spread out, I'll have a nice power increase now, then more to come next year :cool:

It also means you'll get another project thread to follow ;)
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Thats sick, good man, i can't wait for this project thread. :D
 
Jonnycoupe said:
Are you after

A blox manifold for T3 turbine housing turbos
A GT28RS with T3 housing and 0.82 A/R turbine
RC550 injectors
Tial 38mm wastgate
Big intercooler
Downpipe and wastegate for said setup.

By any chance? ;)
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Awesome setup to be fair :D
 
If it will sound anything like this I will wet my pants. Its an SR22 with a VET head (I wish I could actually find one) with a GT4508R so its high revving vtec style and turbo. Obviously with a whole load of other mods aswell :)

 
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Right, maybe yet another change of plan. Simon/Jonnycoupe/any other turbo gurus I need some advice on this.

Came across this ad:

Lost the car to a wreck. Engine ran strong for around 2500miles with a mild turbo setup. Sold the head about 6 months ago so just the block left. Excellent condition ready for 500-600hp.

- 9:1 Arias Pistons
- Eagle Connecting Rods with 3/8 ARP rod bolts.
- Darton Sleeve Kit
- 84mm bore
- Used Cometic Head Gasket
- ARP Head Studs

The machine work was done at a well respected shop with over 40years experience in the states.


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So I PM'd him and got this back:


Let me go ahead and let you know whats up with it.

On a more thorough inspection of the block surface I noticed that one of the cylinders is about 2/1000" higher than the rest. Depending on the amount of boost you are trying to run this could cause problems with the head gasket sealing. The solution would be to get the sleeve repressed and the surface decked to get the imperfection out. I just wanted to be completely honest with you about it so that you would know about the machine work that will need to be done to run high boost efficiently.
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He's willing to let it go for 550 quid, which seems more than fair to me. How much boost would it take with that protrusion?
 
Only buy it if you're prepared to strip it right back to a bare block and rebuild it, potentially using new components throughout. If it don't run, then there's the potential that it can't.
 
Lashout_UK said:
Only buy it if you're prepared to strip it right back to a bare block and rebuild it, potentially using new components throughout.
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I hear what you're saying, but TBH that would be defeating the object of buying it, if I'm going to do that I might as well just stick to my current plan and rebuild my current bottom end over the winter.
 
If it aint flat, not a lot. I'm not sure on what gaskets you honda boys use, but a MLS gasket requires both faces (head and block) to be completely true. Its a timebomb really, and if you buy it, buy it to machine back to how it should be.

9:1 is also pretty high compression to be boosting......
 
If the components are ok bar the block surface, and the CR is ok, aren't pistons and rods normally more than that on their own? Just thinking couldn't you get this to cannabalise with what you already have?
 
Just because you Cosworth boys get your knickers in a twist with anything over 7:1 :P

Drexel, if I were you i'd do it right, you may be buying someone elses' problems there. If you know it's done right you'll have peace of mind at least.
 
TBH I don't mind pulling it apart and rebuilding it, as long as I dont need to replace absolutely eveything. I figure as long as the crank, rods, pistons and sleeves are OK, then it's a pretty good deal, as we will only be talking about bearings and rings etc.

bigchez said:
9:1 is also pretty high compression to be boosting......
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About normal for a boosted Honda ;)
 
bigchez said:
Must be stronger and more reliable than shonky old fords then :D

Best of luck with it.
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Yes miles. I had the pleasure of driving my brothers (JonnyCoupe's) old B16 VTEC engined Rover Coupe that he turboed. Standard bottom end (circa 10.6:1 CR)

Just felt like a massive engine that also reved. High CR means less boost needed which improves engine response. Plus the fact it was making 180hp NA meant it had plenty of air getting through it to help spool the turbo.

Lag was non existant.

A standard S2000 engine is doing 600hp with a turbo bolted on, Honda certainly can make good engines
 
Simon said:
Yes miles. I had the pleasure of driving my brothers (JonnyCoupe's) old B16 VTEC engined Rover Coupe that he turboed. Standard bottom end (circa 10.6:1 CR)

Just felt like a massive engine that also reved. High CR means less boost needed which improves engine response. Plus the fact it was making 180hp NA meant it had plenty of air getting through it to help spool the turbo.

Lag was non existant.

A standard S2000 engine is doing 600hp with a turbo bolted on, Honda certainly can make good engines
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Is there really any need to drastically drop CR on a modern, well-designed engine?

Surely all you will achieve is increased lag and lower VE?

*n
 
2/1000" seems like ****-all, surely that's within tolerances? It's not like I'm going to be running 2 bar of boost through it, I'd be more than happy with around 300bhp.

EDIT: Found this bit of info after googling:

Golden Eagle is also a practitioner of the step deck process, a technique pioneered by the engineers at Lamborghini that leaves the sleeves sticking out above the deck about 0.002 to 0.003 of an inch, helping to create a better seal to the head
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If Golden Eagle purposely leave the sleeve sticking out by 0.002", it should be OK?
 
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bigchez said:
9:1 is also pretty high compression to be boosting......
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You'll struggle to find anyone with Honda boosted engines who runs any lower than 9:1 TBH.

Id try the engine as is if you happy after inspection of the bearings etc, the coolant jacket doesn't look that great in terms of where its been stored? Worse that can happen is you need a new HG.

The raised bit will be the cylinder, some builder do leave a lip on the MID sleeve to give a higher compression region around the fire ring. Worth nosing to see what they do. With a mismatch you may have sealing issues on the adacent cylinder.

EDIT: see thats what GE spec anyway. I wouldnt really worry. I mean it was running before yeah until the accident or whatever. Is it Angelas old engine?
 
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