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#1
The Lounge / Re: Soliciting thoughts & opin...
Last post by cstudep - September 09, 2026, 08:22:24 PMCool, sounds like you have a plan. I have always been intrigued by the turbo kits and it's surely got to be the easiest route to go for what you want to do.
#2
The Lounge / Re: Soliciting thoughts & opin...
Last post by MiniDave - September 09, 2026, 06:37:37 PMGood idea on the AFR gauge.
I'm excited to see you do this, it will be the first turbo installation in our little group. However, I thought the point of going with the turbo was not having to pull the motor?
I'm excited to see you do this, it will be the first turbo installation in our little group. However, I thought the point of going with the turbo was not having to pull the motor?
#3
The Lounge / Re: Soliciting thoughts & opin...
Last post by MPlayle - September 09, 2026, 06:11:19 PMI have not heard from Stuart at VMAXSCART with numbers for the supercharger route. Jereemy at Jet Motors indicated I should see about double my current hp and torque figures with 8-10 lbs of boost with the turbo kit. Based on the conversations with Dave as well as Jeremy, that would mean between 80-90 for hp and 90-100 for torque (based on 39 hp and 52 lbft for a stock 998 and allowing for a bit more with my current head configuration).
Granted, those may be "optimistic" numbers. If reality is more like 60-70 hp and 70-80 lbft, then I will have the power gains to easily support the results of the gearing change.
I plan to add a boost/afr gauge for tuning.
Granted, those may be "optimistic" numbers. If reality is more like 60-70 hp and 70-80 lbft, then I will have the power gains to easily support the results of the gearing change.
I plan to add a boost/afr gauge for tuning.
#4
The Lounge / Re: Soliciting thoughts & opin...
Last post by 94touring - September 09, 2026, 05:55:38 PMHe estimate what power it will make?
#5
The Lounge / Re: Soliciting thoughts & opin...
Last post by MPlayle - September 09, 2026, 05:14:32 PMI had found that VMAXSCART was still around and making their A-Series supercharger kit. I have been researching both as I had more/less decided after my talk with MiniDave to go with some form of "forced induction".
I am actually leaning more towrds the Turbo kit as it was designed by Jet Motors (US based, so more convenient support) who have sold a significant number of the kits and their kits are also being sold by some of the UK Mini parts suppliers.
I have spoken extensively this week with Jeremy about his kit and compatibility with my current engine specs. I am likely to order the kit later this week. I already ordered the parts to sort the drop-gear issue from Mini Spares and will in fact be changing from the current square-cut 1.04xx ratio set to the "economy" 0.958 ratio set - resulting in something closer to a 2.95 final.
I am actually leaning more towrds the Turbo kit as it was designed by Jet Motors (US based, so more convenient support) who have sold a significant number of the kits and their kits are also being sold by some of the UK Mini parts suppliers.
I have spoken extensively this week with Jeremy about his kit and compatibility with my current engine specs. I am likely to order the kit later this week. I already ordered the parts to sort the drop-gear issue from Mini Spares and will in fact be changing from the current square-cut 1.04xx ratio set to the "economy" 0.958 ratio set - resulting in something closer to a 2.95 final.
#6
The Lounge / Re: Soliciting thoughts & opin...
Last post by 94touring - September 09, 2026, 02:53:38 PMCouple different ways to do it. Russell and maybe Calvert sell some very oversized pistons to make a 1225cc or thereabouts. Otherwise maybe there are specific height pin small bore pistons to make it work out for 0 deck height and the gasket for proper quench and piston to head clearance without machine work or specific rods. We'd have to research it a bit. All a 1098 is really is a stroked 998. The Russell pistons are just one avenue to take a small bore and basically turn it into a large bore. It would be a really nice motor.
#7
The Lounge / Re: Soliciting thoughts & opin...
Last post by MiniDave - September 09, 2026, 02:35:12 PMWould you sell him one of your 1275's?
The thing Dan is talking about is putting a 1098 crank in a 998 to give it more stroke. It makes a quicker revving engine that makes more power than a stock 1098. It usually needs special pistons tho.....I think Russel in Australia sells the kit and is a big proponent of it.
The thing Dan is talking about is putting a 1098 crank in a 998 to give it more stroke. It makes a quicker revving engine that makes more power than a stock 1098. It usually needs special pistons tho.....I think Russel in Australia sells the kit and is a big proponent of it.
#8
The Lounge / Re: Soliciting thoughts & opin...
Last post by cstudep - September 09, 2026, 08:48:40 AMJust to muddy up the waters a bit more 
I have a 1098 (1100?) I might be willing to sell. Dave and Dan are both quite familiar with it since that is where it came from. I really probably need to clear some stuff out anyway and I am not sure I will ever use it since I have a few 1275 motors I can rebuild.
You could put your head and what not on it and basically accomplish what Dan is talking about without having to tear into a bottom end potentially. I have no idea what condition the motor is really in but it does run, Dave had it on his engine test stand, and I believe he had compression numbers and what not that all looked good. Not sure if it was in a driveable car at one point to know the trans condition.
I am not anywhere near you so the shipping complicates things a bit.
I have a 1098 (1100?) I might be willing to sell. Dave and Dan are both quite familiar with it since that is where it came from. I really probably need to clear some stuff out anyway and I am not sure I will ever use it since I have a few 1275 motors I can rebuild.You could put your head and what not on it and basically accomplish what Dan is talking about without having to tear into a bottom end potentially. I have no idea what condition the motor is really in but it does run, Dave had it on his engine test stand, and I believe he had compression numbers and what not that all looked good. Not sure if it was in a driveable car at one point to know the trans condition.
I am not anywhere near you so the shipping complicates things a bit.
#9
The Lounge / Re: Soliciting thoughts & opin...
Last post by 94touring - September 09, 2026, 08:40:53 AMIt would be a good candidate for a turbo at 8:5. But it needs to be tuned properly or you'll for sure be rebuilding it in your apartment.
#10
The Lounge / Re: Soliciting thoughts & opin...
Last post by MiniDave - September 09, 2026, 08:32:51 AMOr, with that low of compression ratio, a bolt on turbo kit would be perfect..... 
Get more HP but more importantly, more torque - especially at lower RPM, which lets you run those taller gears for less noise on long highway runs.
OR.......just leave it alone and use third gear up those hills and let it wind out - it's good for it to do that once in a while. Dan had no problem keeping up with us 1275's with his 998 Mini on everything except a long uphill run, once over the crest he was right there with us again.
Get more HP but more importantly, more torque - especially at lower RPM, which lets you run those taller gears for less noise on long highway runs.
OR.......just leave it alone and use third gear up those hills and let it wind out - it's good for it to do that once in a while. Dan had no problem keeping up with us 1275's with his 998 Mini on everything except a long uphill run, once over the crest he was right there with us again.