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Subject: Honda Prelude Vtec
Sender's Name: Nick
Question: Have you fitted or tested the K&N 57i induction kit on a Prelude VTEC - is is worth the money ?
Answer: An induction kit is only worth the money if you gain anything from it. Somehow I doubt if Honda would miss that one. My experience is of little gain and occasional loss from these kits depending on management type. The only reason for gain would be increased air flow if the manufacturer had trouble making the air filter system quiet enough for road use.
 
Subject: Mongoose Exhausts
Sender's Name: Nick
Question: Mongoose exhausts - do you sell them?
Answer: Sorry - no! But we do sell Scorpion. In all honesty I cant tell the difference and they also come with a lifetime guarantee. Should you require any further information please ring for prices and availability.
 
Subject: XR3i
Sender's Name: Ian Frost
Question: have query, however it not tuning related but I hope you can help. I own a 1988 MFI XR3i which I have just destroyed the gearbox of. My girlfriend has a 1990 EFI XR3i engine and gearbox. What I would know is, are they the same? And do I need a different clutch etc, I might as well change it since the gearbox is coming out. What causes the breather system on my MFI engine to keep blocking and does it cause any problems with idle speed?
Answer: Same CVH engine but different management system. I will he honest I dontknow if you need to swap the cylinder heads or not. Same clutch. Blocked breather usually means poor quality oil or bad ring seal. Or both! A blocked breather will adversely affect the idle. Does your girlfriend know of your plans? - LOL!!!!!
 
Subject: 87 Xr4 x 4 Sierra
Sender's Name: Nick
Question: My problem is one of over heating.This only happens whith the thermostat in. Its definately not the classic v6 air lock. However I am losing a tiny bit of coolant and a compression check showed very low psi and also different psi on each piston. Could this be a head gasket problem? or maybe something else.Is there a conclusive test to prove one way or another? car has done 130K ,has a slight missfire but runs ok(minus the stat) Any advice would be greatly accepted.
Answer: As you know you should top up the engine from the heater outlet first!!! If you have adequate coolant in the system then you should suspect the radiator, as slight loss of flow with (open) 'stat in place could just make the difference. Check your water pump as that can leak occasionally when engine stopped. Otherwise pull off the heads!
 
Subject: Honda Prelude Vtec
Sender's Name: Chris Russell
Question: I'm looking for some advice on boosting the performance of my 1996 Honda Prelude 2.2 VTEC - can you advise what options are available & the most cost effective ? I'm thinking first of an Induction Kit.
Answer: The VTec engine is very good! It would be hard to improve on it. Superchips do an effective chip for it. The cost is ?165 plus VAT plus fitting and rolling road session at ?30 plus VAT. Induction kits are good and bad news - I would suggest a rolling road session to prove either way. Far too many people who should know better will sell you one regardless.
 
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