150 replies to this topic

[stefaz]

nice project mate, but no offence and i dont want to discourage you, but i doubt an insurance company will come within 20miles of you if you declare all your mods which you really ought to. im running a standard (ish) turbo and im no longer classed as "inexperienced" with 3 years driving under my belt and a years no claims and they still wanted over £1200, but that is unlimited mileage and fully comp.

Will be good to see some pictures of the engine and bay when you're ready. sounds like a good project, but have you thought of doing a flywheel mounted turbo and getting something like a gt17 - saves spending on the turbo twice and allows better routing of the pipes - easy intercooler positioning. depends how handy you are at welding stainless. Also which carb are you going to be using? I'd recommend using the turbo head by the way - the exhaust avlves are filled with sodium to allow alot more heat to escape the chambers. Oh yeah and good luck with the budget although if you do most of the work yourself you should do ok.

Ant

[Sam Walters]

im gunna declare everything, however im not gunna run the turbo untill im 18 as still i recon then altho not technicly learning to drive with l plates and all the rubbish i would have passed my test but still be learning if that makes sence. the turbo over the gearbox houseing. hurmm i have thought about it however there too hard to get hold of and to be honest i really cba with fabrication of it all, so im just gotta bolt up a mirage manifold and have done with it.


my perents will pay for my insuance for the first year they say, the condition is that untill i have passed my test it has to be standard engine wise. however the day i past my test i can come home phone the insuance company and swap the engine over.

[stefaz]

sounds like an idea - just remember to take it easy and get it all set up properly. you gonna use electronic ignition or a dizzy with a custom curve?

sorry bout all the questions but i'm gathering ideas for my 998 monster next year

Ant

[Sam Walters]

i dont mind mate, if anything it makes me think things out abit more, as at the moment its all kinda ideas that ive kinda half put together, you never know that turbo charger might turn into a super charger come december posibly depends on what i can get hold of, off old ebay

[biggav]

i thought that a bigger dished piston will increase the cc? as cc is a measurement of the volume of a cylinder.

what about stroking an enigne? and before anyone says it, not with your hand !

nice project by the way! look forward to seeing more progress

Displacement is the difference in volume between when the piston is at bottom dead centre and top dead centre.... For example, if a cylinder is 250cc with flat pistons (X4 making car 1ltr) if you fill the cylinder with water, then move it to TDC, then measure the water which comes out will be the displacement amount 250cc.... if we then change the piston for a dished piston giving an extra 5cc, it will require 255cc of water to fill the cylinder at BDC, but when you move the piston to TDC, you will only expell 250cc from it as the 5cc dish still has its water inside it.

the reaon for the extra 5cc is to accomodate the extra charge volume that turbo and superchargers give (lower CR) it has no bearing on the engine displacement. The only way to change an engines displacement is to change the crank for a different stroke, or bore it out and fit wider pistons.

[Sam Walters]

oh right i see what you mean

[Dog]

i thought that a bigger dished piston will increase the cc? as cc is a measurement of the volume of a cylinder.

what about stroking an enigne? and before anyone says it, not with your hand !

nice project by the way! look forward to seeing more progress

Displacement is the difference in volume between when the piston is at bottom dead centre and top dead centre.... For example, if a cylinder is 250cc with flat pistons (X4 making car 1ltr) if you fill the cylinder with water, then move it to TDC, then measure the water which comes out will be the displacement amount 250cc.... if we then change the piston for a dished piston giving an extra 5cc, it will require 255cc of water to fill the cylinder at BDC, but when you move the piston to TDC, you will only expell 250cc from it as the 5cc dish still has its water inside it.

the reaon for the extra 5cc is to accomodate the extra charge volume that turbo and superchargers give (lower CR) it has no bearing on the engine displacement. The only way to change an engines displacement is to change the crank for a different stroke, or bore it out and fit wider pistons.

Nice easy way to understand it!

[Sam Walters]

http://www.minispeed...p;id=rgc998-kwn


well theres practicly an entire months wages gone well will be

[biggav]

http://www.minispeed...p;id=rgc998-kwn


well theres practicly an entire months wages gone well will be

I've heard lots of orrible things about minispeed of late!!!!!
Have you tried Rob Walker Engineering in Chipping norton?? CLICK!!! you'll probably find that if you strip your engine down and take your bits you want doing over there, he will machine all your bits far cheaper than buying new ones... and you can then say "i have a Rob Walker engine" which sounds sooo much better than "i have a Mini Speed engine" He's a propper old school mini engine builder and will give you straight forward prices for exactly what you require. chck out the prices on the web site. You coul probably afford to get him to do the work on yours and by a spare complete 998 for the money minispeed will ask!!!!

[Sam Walters]

ive sent him an email about the pocketing of my block a while ago and he never replyed........i guess ill have to phone him then.

[biggav]

ive sent him an email about the pocketing of my block a while ago and he never replyed........i guess ill have to phone him then.

i emailed and it took a while to get back to me... he doesn't deal with the emails so you end up with a response saying best to phone or go over.

I will be taking my engine over and letting him do it as and when as i have loads of other bodywork to do in the mean time.

[Sam Walters]

500quid for:

Block - bored and honed, refaced and cleaned, new cam bearings and core plugs fitted. Chemically cleaned.

Crank - reground to next size and supplied with new bearings

Pistons - new pistons fitted to conrods.



well as he would be takeing out the cam anyhow he may aswell fit a diffrent one at the same time, say if i pay say 20 quid more for him to fit the kit.

and as he would be fitting new pistons why not fit ones that i give to him for say another 20 pounds more.

and ill see how much its gunna cost for the block to be pocketed

SW5-07 “Hi-Lift Kit”

consits of

• camshaft
• cam followers
• oil pump
• lock tab washer
• alloy vernier duplex
• timing disc
• double valve springs
• Swiftune 1.5 roller tip rocker assembly

ill ask him not to paint the block only chemicly clean it, as i can do this at home



well im gunna do the engine after ive done everything else, i have a sneeky suspicion that my perents are gunna donate me a 1275 mg metro engine. ill put that in there after i pass my test, so between the age of 17-18 i can build this engine because at the moment all my money is being put into the rest of the mini.

however before december ill make the preperations for it eg the brakes that i have alreaddy got, the oil cooler and the radiator, and ill source a suitible intercooler and have a look where to mount it.

but most of the money im getting is going into the suspension bodywork and interior rather then the engine, well maybe an exaust!

[Dog]

Careful using hi-lift rockers on a 998... remember you'll have to sink the pockets even further!
What Turbo you going for?

[Sam Walters]

ill put a-serious aside on this one mart.

im gunna be useing the t2, how far exactally am i going to have too move the pockets down the bore?

[Sam Walters]

in the day light on sunday, working all of tomoro! :'( then 10-4 on sunday again!!!!!

anyhow now i have pennies im gunna order the flip front from tdk racing and my arches from curley if i have enought pennies after that.

next payday is on the hurmm 13th of next month, so im gunna go buy some crappy 12 inch wheels so i can put on my disks. a fiberglass dash from smudger, a rear valance if enought people ask for the recess and posibly some sound proofing and a carpet....